Quarterlytics / Financial Services / Banks - Regional / International Bancshares Corp.

International Bancshares Corp.

iboc · NASDAQ Financial Services
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Ticker iboc
Exchange NASDAQ
Sector Financial Services
Industry Banks - Regional
Employees 501-1000
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FY2017 Annual Report · International Bancshares Corp.
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21MAR200523282374

INTERNATIONAL  BANCSHARES  CORPORATION
ALL BANKS MEMBER FDIC
MEMBER BANKS:

International Bank Of Commerce
1200 San Bernardo Avenue
(956) 722-7611

Laredo
7002 San Bernardo Ave.
(956)  728-0060

1002  Matamoros
(956)  726-6622

1300 Guadalupe
(956)  726-6601

2418 Jacaman Rd.
(956)  764-6161

5300 San Dario Ste. 440D
(956)  728-0063

5300 San Dario Ste. 202
(956)  790-6500

9710  Mines  Road
(956)  728-0092

4501 San Bernardo
(956)  722-0485

7909  McPherson  Ave.
(956)  728-0064

2442 San Isidro Pkwy
(956)  726-6611

2415 S. Zapata Hwy.
(956)  728-0061

5610 San Bernardo
(956)  726-6688

2320  Bob  Bullock  Lp  20
(956)  728-0062

4401 Highway 83 South
(956)  794-8140

1600  Water Street, Suite B520
(956)  722-7611

Administration  Center
2418  Jacaman  Rd.  (Rear)
(956)  722-7611

San  Antonio
130 East Travis
(210)  518-2500

5029  Broadway
(210)  518-2523

6630  Callaghan
(210)  369-2960

2201  NW  Military  Dr.
(210)  366-0617

12400  Hwy.  281  North
(210)  369-2900

16339  Huebner  Rd.
(210)  369-2974

8650 Fredericksburg Rd.
(210)  930-9811

2310 SW Military Drive,  Suite  216
(210)  518-2558

1500 NE Lp. 410
(210)  281-2400

18750 Stone Oak Pkwy
(210)  496-6111

5300 Walzem Rd.
(210)  564-2300

11831 Bandera Rd.
(210)  369-2980

3119 SE Military Drive
(210)  354-6980

327 SW Loop 410
(210)  930-9825

938  SW  Military  Dr.
(210)  930-9815

11002  Culebra
(210)  930-9850

Service Center
2416  Cee  Gee
(210)  821-4700

8770  Tesoro
(210)  821-4700

Luling
200 S. Pecan St.
(830)  875-2445

Marble  Falls
2401  Hwy.  281  North
(830)  693-4301

San  Marcos
1081 Wonder World
(512)  353-1011

Shertz
3800  Hwy  3009
(210)  354-6982

McAllen
One S. Broadway
(956)  686-0263

7124 N. 23rd.
(956)  630-9310

301 S. 10th St.
(956)  688-3610

3600  N.10th.  St.
(956)  688-3690

2200 S. 10th St. (La Plaza East)
(956)  688-3670

802 S. Jackson Road
(956)  630-9360

2200 S. 10th St. (La Plaza West)
(956)  688-3660

2225  Nolana
(956)  688-3600

1200 E. Jackson
(956)  688-3685

2800  Nolana
(956)  688-3620

2900 W. Exp 83
(956)  630-9350

Alamo
1421 West Frontage Rd.
(956)  688-3645

Alton
215 West Martin Ave.
(956)  630-9319

Edinburg
400  S.  Closner
(956)  688-3640

4101  S.  McColl
(956)  630-9337

1724 W.  University  Dr. Ste. B
(956)  688-3680

2205  W. University  Dr.
(956)  630-9340

Mission
900 N. Bryan Rd.
(956)  688-3630

200  E.  Griffin  Pkwy
(956)  632-3512

2410  E.  Expressway  83
(956)  688-3625

121  S.  Shary  Rd.
(956)  630-9365

Pharr
401  South  Cage
(956)  688-3635

1007  North  I  Rd.
(956)  688-3655

Weslaco
606 S. Texas Blvd.
(956)  688-3605

1310  N.  Texas
(956)  937-9500

Hidalgo
1023  S.  Bridge
(956)  688-3665

San  Juan
108 E.  FM 495
(956)  630-9320

Palmhurst
215 E.  Mile  3 Rd.
(956)  688-3675

Penitas
1705  Expressway  83
(956)  630-9347

Corpus  Christi
221  S.  Shoreline
(361)  888-4000

6130  S.  Staples
(361)  991-4000

4622  Everhart
(361)  903-7265

14066  Northwest  Blvd.
(361)  903-7285

Flour  Bluff
1317 Waldron  Road
(361)  886-9950

Sinton
301 West Sinton
(361)  364-1230

Rockport
2701 Hwy. 35  N.
(361)  729-0500

Aransas  Pass
2501 W. Wheeler  Ave.
(361)  729-0500

Portland
1800 US Hwy 181
(361)  886-9910

Port  Lavaca
311 N. Virginia  St.
(361)  552-9771

Bay  City
1916 7th Street
(979) 245-5781

Victoria
6411 N. Navarro
(361)  575-8394

Houston
5615  Kirby  Dr.
(713)  526-1211

8203  S.  Kirkwood
(713)  285-2165

1001  McKinney  Ste.  150
(713)  285-2140

3200 Woodridge, Ste. 1350
(713)  285-2266

3939  Montrose
(713)  285-2195

5085 Westheimer Ste. 4640
(713)  285-2296

1545  Eldridge  Parkway
(713)  285-2042

Richmond
5250  FM  1460
(832)  595-0920

Sugarland
10570 State  Hwy 6
(713)  285-2199

Katy
544 West Grand Parkway
(713)  285-2037

Lake  Jackson
212  That  Way
(979)  297-2466

Angleton
130 W.  Mulberry
(979)  849-7711

Freeport
1208  N.  Brazosport  Blvd.
(979)  233-2677

Dickinson
2301 West FM  646
(713)  285-2021

Eagle  Pass
2395 E.  Main Street
(830)  773-2313

2538  E.  Main  Street
(830)  773-2313

439 Main Street
(830)  773-2313

2305 Del Rio Blvd.
(830)  773-2313

455 S. Bibb  Ave. Ste.  502
(830)  773-2313

2135  East  Main  Street
(830)  773-2313

Del Rio
2410  Dodson  St.
(830)  775-4265

1507 Veterans  Blvd
(830)  775-4265

2205 Veterans Blvd, Suite E9
(830)  775-4265

Uvalde
3100 E.  Hwy. 90
(830)  278-8045

2065  E.  Main  St.
(830)  278-8045

Austin
500 West 5th St.
(512)  397-4506

10405  FM  2222
(512)  397-4584

2817  E.  Cesar  Chavez
(512)  320-9650

12625  North  IH  35  Bldg.  D
(512)  397-4570

11400 Burnett Road Bldg.  46
(512)  397-4595

9900 South IH 35  Bldg. Y
(512) 397-4530

4025 S. FM  620
(512)  320-9575

First  Equity
9606 N. Mopac Expressway
Ste  100
(512)  346-8892

Bastrop
701 W.  Hwy 71
(512)  308-9412

Cedar  Park
301 W.  Whitestone Blvd
(512)  397-4552

Round  Rock
1850  Gattis  School  Rd.
(512)  320-9530

Leander
1695 US Hwy 183
(512)  320-9540

Dallas
3800  Maple  Ave.
(469)  357-3805

Oklahoma
Ardmore
2302  12th  Ave.
(580)  223-0345

International Bank Of Commerce
1200 San Bernardo Avenue
(956) 722-7611

Broken  Arrow
6412 S. Elm Pl.
(918)  497-2492

8112 Garnett Rd.
(918)  497-2840

Chickasha
628  Grand  Ave.
(405)  775-8052

Claremore
1050 N. Lynn Riggs Blvd.
(918)  497-2456

Clinton
1002 W. Frisco Ave.
(580)  323-0730

Duncan
1006  Main
(580)  255-8187

2311 N. Hwy 81
(580)  255-9055

Edmond
1812 SE 15th St.
(405)  775-8061

421 S. Santa Fe Ave.
(405)  775-8055

Tulsa
2808  E. 101st St.
(918)  497-2810

1951 S.  Yale Ave.
(918)  497-2452

4202  S.  Garnett
(918)  497-2880

2250  E.  73rd  St
(918)  497-2400

11 E. 5th St.
(918)  497-2449

8202  E.  71st  St
(918)  497-2454

5302  E.  Skelly  Dr.
(918)  497-2453

Chandler
3108 E. First St.
(405)  258-2351

Oklahoma  City
3817  NW  Expressway
(405)  841-2100

100 W. Park Ave.
(405)  775-8093

5701 N. May Ave.
(405)  775-8056

2120 Saunders
(956) 724-1616

10500 S. Pennsylvania Ave
(405)  775-8058

2301 N. Portland Ave.
(405)  775-8068

12241  N.  May  Ave.
(405)  775-8059

4902 N. Western Ave.
(405)  775-8054

14001  N.  McArthur  Blvd
(405)  775-1710

Lawton
2101 W. Gore
(580)  355-0253

6425  NW  Cache  Rd.
(580)  250-4311

Miami
2520  N.  Main
(918)  542-4411

Midwest  City
2200 S. Douglas  Blvd.
(405)  775-8057

Moore
513 NE 12th
(405)  775-8066

901  SW  19th
(405)  775-1720

Commerce Bank
5800 San Dario
Laredo, Texas 78041
(956) 724-1616

2302  Blaine  St.
(956) 724-1616

Pauls Valley
700  W. Grant  Ave.
(405)  238-7318

Purcell
430 W.  Lincoln  St.
(405)  775-8094

Sand Springs
3402 State  Hwy. 97
(918)  497-2459

Sapulpa
911 E. Taft St.
(918)  497-2458

Shawnee
2512 N. Harrison  Ave.
(405)  775-8067

Sulphur
2009 W.  Broadway  Ave.
(580)  622-3118

Weatherford
109 E. Franklin Ave.
(580) 772-7441

Stillwater
1900 N. Perkins
(405)  372-0889

Owasso
9350  N.  Garnett
(918)  497-2835

Elk City
1504 W. 3rd St.
(580)  225-7200

Norman
1461 24th Ave.
(405)  841-4744

Lindsey
209  E. Cherokee
(405)  756-4494

Muskogee
3143 Azalea Park Drive
(918)  682-2300

Bixby
11886  S.  Memorial
(918)  497-2855

Bethany
7723  NW 23rd St.
(405)  775-8063

Grove
100  E.  3rd St.
(918)786-4438

Guthrie
120  N.  Division St.
(405)  775-8064

1200  Welby  Court
(956) 724-1616

International Bank of Commerce, Brownsville
1600 Ruben Torres Blvd
Brownsville, TX 78522-1831
(956) 547-1000

1623  Central  Blvd.
(956)  547-1323

4520 E. 14th St.
(956)  547-1300

2370  N.  Expressway
(956)  547-1380

630 E. Elizabeth St.
(956)  547-1350

79 E. Alton Gloor Blvd
(956)  547-1360

3600 W. Alton Gloor Blvd.
(956)  547-1390

South  Padre  Island
911 Padre  Blvd.
(956)  547-1471

Port  Isabel
1401 W.  Hwy.  100
(956)  943-2108

Harlingen
501  S. Dixieland  Rd.
(956)  428-6902

321 S.  77th  Sunshine Strip
(956)  428-6454

1801 W.  Lincoln
(956)428-4559

International Bank of Commerce, Zapata
908 N. US Highway 83
Zapata, TX 78076
(956) 765-8361

Roma
1702 Grant St.
(956)  849-1047

Alice
2001 E. Main St.
(361)  661-1211

Rio Grande City
4015  E.  Hwy. 83
(956)  487-5531

4534  E.  Hwy.  83
(956)  488-6367

4031 E.  Hwy 83
(956)  487-5535

Hebbronville
401  N.  Smith  Ave.
(361)  527-2645

Kingsville
1320 General  Cavazos  Blvd
(361)  516-1040

Beeville
802 E. Houston St.
(361)  358-8700

Freer
405 S.  Norton
(361) 661-1211

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 
(Consolidated) 

The following consolidated selected financial data is derived from the Corporation’s audited financial statements 
as  of  and  for  the  five  years  ended  December 31,  2017.  The  following  consolidated  financial  data  should  be  read  in 
conjunction  with  Management’s  Discussion  and  Analysis  of  Financial  Condition  and  Results  of  Operations  and  the 
Consolidated Financial Statements and related notes in this report. 

SELECTED FINANCIAL DATA 

2017 

AS OF OR FOR THE YEARS ENDED DECEMBER 31, 
2015 
(Dollars in Thousands, Except Per Share Data) 

2016 

2014 

2013 

STATEMENT OF CONDITION 

Assets  . . . . . . . . . . . . . . . . . . . . . . . . .
Investment securities available-for-
sale . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net loans . . . . . . . . . . . . . . . . . . . . . . .
Deposits . . . . . . . . . . . . . . . . . . . . . . . .
Other borrowed funds  . . . . . . . . . . . .
Junior subordinated deferrable 
interest debentures . . . . . . . . . . . . . . .
Shareholders’ equity. . . . . . . . . . . . . .

INCOME STATEMENT 

Interest income . . . . . . . . . . . . . . . . . .
Interest expense  . . . . . . . . . . . . . . . . .
Net interest income  . . . . . . . . . . . . . .
Provision for probable loan losses  . .
Non-interest income . . . . . . . . . . . . . .
Non-interest expense . . . . . . . . . . . . .
Income before income taxes  . . . . . . .
Income taxes . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . .
Net income available to common 
shareholders  . . . . . . . . . . . . . . . . . . . .
Per common share: 

$  12,184,698 

 $  11,804,041  $  11,772,869  $  12,196,520 

 $  12,079,477 

 4,154,470 
 6,280,485 
 8,544,892 
 1,195,225 

 4,177,349 
 5,900,027 
 8,610,089 
 733,375 

 4,199,372 
 5,883,926 
 8,536,253 
 505,750 

 4,911,963 
 5,614,417 
 8,438,625 
 1,073,944 

 5,304,579 
 5,129,074 
 8,243,425 
 1,223,950 

 160,416 
 1,838,980 

 160,416 
 1,724,667 

 161,416 
 1,665,503 

 175,416 
 1,580,658 

 190,726 
 1,424,408 

$ 

 $ 

 415,136 
 38,931 
 376,205 
 11,221 
 150,406 
 293,748 
 221,642 
 64,206 
 157,436 

 $ 

 387,914  $ 
 43,129 
 344,785 
 19,859 
 161,702 
 289,625 
 197,003 
 63,071 
 133,932 

 396,754  $ 
 44,317 
 352,437 
 24,405 
 155,734 
 276,924 
 206,842 
 70,116 
 136,726 

 393,599 
 46,543 
 347,056 
 14,423 
 178,348 
 281,043 
 229,938 
 76,787 
 153,151 

 363,217 
 54,632 
 308,585 
 22,968 
 189,605 
 292,632 
 182,590 
 56,239 
 126,351 

$ 

 157,436 

 $ 

 133,932  $ 

 136,726  $ 

 153,151 

 $ 

 126,351 

Basic . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted  . . . . . . . . . . . . . . . . . . . . . . .

$ 
$ 

 2.38 
 2.36 

 $ 
 $ 

 2.03  $ 
 2.02  $ 

 2.06  $ 
 2.05  $ 

 2.29 
 2.28 

 $ 
 $ 

 1.88 
 1.88 

1 

 
 
 
 
 
 
 
 
 
MANAGEMENT’S DISCUSSION AND ANALYSIS OF 
FINANCIAL CONDITION AND RESULTS OF OPERATIONS 

Management’s discussion and analysis represents an explanation of significant changes in the financial position 
and  results  of  operations  of  International  Bancshares  Corporation  and  its  subsidiaries  (the  “Company”  or  the 
“Corporation”)  on  a  consolidated  basis  for  the  three-year  period  ended  December 31,  2017.  The  following  discussion 
should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2017, 
and the Selected Financial Data and Consolidated Financial Statements included elsewhere herein. 

Special Cautionary Notice Regarding Forward Looking Information 

Certain matters discussed in this report, excluding historical information, include forward-looking statements, 
within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange 
Act of 1934, as amended, and are subject to the safe harbor created by these sections. Although the Company believes 
such forward-looking statements are based on reasonable assumptions, no assurance can be given that every objective will 
be reached. The words “estimate,” “expect,” “intend,” “believe” and “project,” as well as other words or expressions of a 
similar meaning are intended to identify forward-looking statements. Readers are cautioned not to place undue reliance on 
forward-looking  statements,  which  speak  only  as  of  the  date  of  this  report.  Such  statements  are  based  on  current 
expectations, are inherently uncertain, are subject to risks and should be viewed with caution. Actual results and experience 
may differ materially from the forward-looking statements as a result of many factors. 

Risk factors that could cause actual results to differ materially from any results that are projected, forecasted, 
estimated or budgeted by the Company in forward-looking statements include, among others, the following possibilities: 

•  Local, regional, national and international economic business conditions and the impact they may have on 
the Company, the Company’s customers, and such customers’ ability to transact profitable business with the 
Company, including the ability of its borrowers to repay their loans according to their terms or a change in 
the value of the related collateral. 

•  Volatility and disruption in national and international financial markets. 
•  Government intervention in the U.S. financial system. 
•  The Company relies, in part, on external financing to fund the Company’s operations from the FHLB, the 
Fed and other sources, and the unavailability of such funding sources in the future could adversely impact 
the Company’s growth strategy, prospects and performance. 
•  Changes in consumer spending, borrowing and saving habits. 
•  Changes in interest rates and market prices, which could reduce the Company’s net interest margins, asset 
valuations and expense expectations, including, without limitation, the repeal of federal prohibitions on the 
payment of interest on demand deposits. 

•  Changes in the capital markets utilized by the Company and its subsidiaries, including changes in the interest 

rate environment that may reduce margins. 

•  Changes in state and/or federal laws and regulations to which the Company and its subsidiaries, as well as 
their customers, competitors and potential competitors, are subject, including, without limitation, the impact 
of the Consumer Financial Protection Bureau (“CFPB”) as a regulator of financial institutions, changes in 
the accounting, tax and regulatory treatment of trust preferred securities, as well as changes in banking, tax, 
securities,  insurance,  employment,  environmental  and  immigration  laws  and  regulations  and  the  risk  of 
litigation that may follow. 
•  Changes in our liquidity position. 
•  Changes in U.S.—Mexico trade, including, without limitation, reductions in border crossings and commerce 
resulting from the Homeland Security Programs called “US-VISIT,” which is derived from Section 110 of 
the  Illegal  Immigration  Reform  and  Immigrant  Responsibility  Act  of  1996,  renegotiation  and  potential 

2 

changes to the North American Free Trade Agreement (“NAFTA”), or the possible imposition of tariffs on 
imported goods. 
The reduction of deposits from nonresident alien individuals due to the new IRS rules requiring U.S. financial 
institutions to report to the IRS deposit interest payments made to nonresident alien individuals.
The loss of senior management or operating personnel.
Increased competition from both within and outside the banking industry.
The  timing,  impact  and  other  uncertainties  of  the  Company’s  potential  future  acquisitions,  including  the
Company’s ability to identify suitable potential future acquisition candidates, the success or failure in the
integration of their operations and the Company’s ability to maintain its current branch network and to enter
new markets successfully and capitalize on growth opportunities.
Changes in the Company’s ability to pay dividends on its Common Stock.
Changes  in  estimates  of  future  reserve  requirements  based  upon  periodic  review  thereof  under  relevant
regulatory and accounting requirements.

•

•
•
•

•
•

• Additions  to  the  Company’s  loan  loss  allowance  as  a result  of  changes  in  local, national or  international
conditions which adversely affect the Company’s customers, including, without limitation, lower real estate
values, lower oil prices or environmental liability risks associated with foreclosed properties.

• Greater than expected costs or difficulties related to the development and integration of new products and

•

•
•
•
•

lines of business, including those regulated by the CFPB.
Increased  labor  costs  and  effects  related  to  health  care  reform  and  other  laws,  regulations  and  legal
developments impacting labor costs.
Impairment of carrying value of goodwill could negatively impact our earnings and capital.
Changes in the soundness of other financial institutions with which the Company interacts.
Political instability in the United States or Mexico.
Technological changes or system failures or breaches of our network security, as well as other cyber security
risks, could subject us to increased operating costs, litigation and other liabilities.

• Acts of war or terrorism.
• Natural disasters.
•

•

•

•

•

Reduced earnings resulting from the write down of the carrying value of securities held in our securities
available-for-sale portfolio following a determination that the securities are other-than-temporarily impaired.
The effect of changes in accounting policies and practices as may be adopted by the regulatory agencies, as
well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board and
other accounting standards setters.
The costs and effects of regulatory developments, including the resolution of legal proceedings or regulatory
or other governmental inquiries and the results of regulatory examinations or reviews and the ability to obtain
required regulatory approvals.
The effect of final rules amending Regulation E that prohibit financial institutions from charging consumer
fees for paying overdrafts on ATM and one-time debit card transactions, unless the consumer consents or
opts-in to the overdraft service for those types of transactions, as well as the effect of any other regulatory or
legal developments that limit overdraft services.
The reduction of income and possible increase in required capital levels related to the adoption of legislation,
including,  without  limitation,  the  Dodd-Frank  Regulatory  Reform  Act  (the  “Dodd-Frank  Act”)  and  the
implementing  rules  and  regulations,  including  the  Federal  Reserve’s  rule  that  establishes  debit  card
interchange  fee  standards  and  prohibits  network  exclusivity  arrangements  and  routing  restrictions  that  is
negatively  affecting  interchange  revenue  from  debit  card  transactions  as  well  as  revenue  from  consumer
services.

3 

•

•

•

The  increase  in  required  capital  levels  related  to  the  implementation  of  capital  and  liquidity  rules  of  the
federal banking agencies that address or are impacted by the Basel III capital and liquidity standards.
The enhanced due diligence burden imposed on banks related to the banks’ inability to rely on credit ratings
under Dodd-Frank, which may result in a limitation on the types of securities certain banks will be able to
purchase as a result of the due diligence burden.
The Company’s success at managing the risks involved in the foregoing items, or a failure or circumvention
of the Company’s internal controls and risk management, policies and procedures.

Forward-looking statements speak only as of the date on which such statements are made. It is not possible to 
foresee or identify all such factors. The Company makes no commitment to update any forward-looking statement, or to 
disclose  any  facts,  events  or  circumstances  after  the  date  hereof  that  may  affect  the  accuracy  of  any  forward-looking 
statement, unless required by law. 

Overview 

The Company, which is headquartered in Laredo, Texas, with 192 facilities and 294 ATMs, provides banking 
services for commercial, consumer and international customers of South, Central and Southeast Texas and the State of 
Oklahoma. The Company is one of the largest independent commercial bank holding companies headquartered in Texas. 
The Company, through its bank subsidiaries, is in the business of gathering funds from various sources and investing those 
funds in order to earn a return. The Company, either directly or through a bank subsidiary, owns one insurance agency, a 
liquidating subsidiary, and a fifty percent interest in an investment banking unit that owns a broker/dealer. The Company’s 
primary  earnings  come  from  the  spread between  the  interest  earned on  interest-bearing  assets  and  the  interest paid on 
interest-bearing  liabilities.  In  addition,  the  Company  generates  income  from  fees  on  products  offered  to  commercial, 
consumer and international customers.  The sales team of each of the Company’s bank subsidiaries aim to match the right 
mix of products and services to each customer to best serve the customer’s needs.  That process entails spending time with 
customers to assess those needs and servicing the sales arising from those discussions on a long term basis.  The bank 
subsidiaries  have  various  compensation  plans,  including  incentive  based  compensation,  for  fairly  compensating 
employees.  The bank subsidiaries also have a robust process in place to review sales that support the incentive based 
compensation plan to monitor the quality of the sales and identify any significant irregularities, a process that has been in 
place for many years. 

A  primary  goal  of  the  Company  is  to  grow  net  interest  income  and  non-interest  income  while  adequately 
managing  credit  risk,  interest  rate  risk  and  expenses.  Effective  management  of  capital  is  a  critical  objective  of  the 
Company. A key measure of the performance of a banking institution is the return on average common equity (“ROE”). 
The  Company’s  ROE  for  the  year  ended  December 31,  2017  was  8.62%  as  compared  to  7.70%  for  the  year  ended 
December 31, 2016. 

The Company is very active in facilitating trade along the United States border with Mexico. The Company does 
a large amount of business with customers domiciled in Mexico. Deposits from persons and entities domiciled in Mexico 
comprise  a  large  and  stable  portion  of  the  deposit  base  of  the  Company’s  bank  subsidiaries.  The  loan  policies  of  the 
Company’s bank subsidiaries generally require that loans to borrowers domiciled in foreign countries be primarily secured 
by assets located in the United States or have credit enhancements in the form of guarantees, from significant United States 
corporations.  The  Company  also  serves  the  growing  Hispanic  population  through  the  Company’s  facilities  located 
throughout South, Central and Southeast Texas and the State of Oklahoma. 

Expense  control  is  an  essential  element  in  the  Company’s  long-term  profitability.  As  a  result,  the  Company 
monitors the efficiency ratio, which is a measure of non-interest expense to net interest income plus non-interest income 
closely. As the Company adjusts to regulatory changes related to the Dodd-Frank Act, including congressional efforts to 
revamp or reform it, the Company’s efficiency ratio may suffer because the additional regulatory compliance costs are 
expected to increase non-interest expense. The Company monitors this ratio over time to assess the Company’s efficiency 
relative to its peers. The Company uses this measure as one factor in determining if the Company is accomplishing its 
long-term goals of providing superior returns to the Company’s shareholders. 

4 

Results of Operations 

Summary 

Consolidated Statements of Condition Information 

  December 31, 2017   December 31, 2016  
(Dollars in Thousands) 

Percent Increase 
(Decrease) 

Assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Net loans  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Securities sold under repurchase agreements  . . . . . . . . . . . . . . . . .    
Other borrowed funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Junior subordinated deferrable interest debentures . . . . . . . . . . . . .    
Shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 12,184,698 
 6,280,485 
 8,544,892 
 353,805 
 1,195,225 
 160,416 
 1,838,980 

 $ 

 11,804,041 

 5,900,027    
 8,610,089    
 504,985 
 733,375    
 160,416    
 1,724,667    

 3.2 %
 6.4 
 (0.8)
 (29.9)
 63.0 
 — 
 6.6 

Consolidated Statements of Income Information 

  Year Ended  
  December 31,  
2017 

  Year Ended  
  December 31, 
2016 

     Percent 
Increase 
(Decrease)   
  2017 vs. 2016  
(Dollars in Thousands, Except Per Share Data) 

Year Ended  
December 31,  
2015 

      Percent 
Increase 
(Decrease) 
  2016 vs. 2015   

Interest income  . . . . . . . . . . . . . . . . . . . . . . .   $ 
Interest expense . . . . . . . . . . . . . . . . . . . . . . .  
Net interest income . . . . . . . . . . . . . . . . . . . .  
Provision for probable loan losses . . . . . . . .  
Non-interest income  . . . . . . . . . . . . . . . . . . .  
Non-interest expense . . . . . . . . . . . . . . . . . . .  
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Per common share: 

 415,136  $ 
 38,931 
 376,205 
 11,221 
 150,406 
 293,748 
 157,436 

 387,914    
 43,129    
 344,785    
 19,859    
 161,702    
 289,625    
 133,932    

 7.0 %   $ 
 (9.7)
 9.1 
 (43.5)
 (7.0)
 1.4 
 17.5 

 396,754    
 44,317    
 352,437    
 24,405    
 155,734    
 276,924    
 136,726    

 (2.2)%
 (2.7)
 (2.2)
 (18.6)
 3.8 
 4.6 
 (2.0)

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   $ 
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 2.38  $ 
 2.36 

 2.03    
 2.02    

 17.2 %   $ 
 16.8 

 2.06    
 2.05    

 (1.5)%
 (1.5)

Net Income 

Net income for the year ended December 31, 2017 increased by 17.5% compared to the same period in 2016.  Net 
income for the year ended December 31, 2017 was positively impacted by an increase in net interest income.  Net interest 
income increased as interest income on loans increased due to a higher volume of loans and an increase in the overall yield 
of  the  loan  portfolio.    Interest  expense  declined  primarily  due  to  the  effects  of  the  early  termination  of  the  long-term 
repurchase agreements by the lead bank subsidiary in prior years.  Net income for the year ended December 31, 2017 was 
also positively impacted by a decrease in the provision for probable loan losses compared to 2016  and a tax refund received 
in the second quarter of 2017.  The provision for probable loan losses decreased as a result of a decrease in the historical 
loss experience in the commercial category of the allowance for probable loan loss calculation.  As discussed in prior 
periods,  charge-offs  had  increased  due  to  the  deterioration  of  one  relationship  that  is  secured  by  multiple  pieces  of 
transportation equipment beginning in the fourth quarter of 2014.  The Company uses a three year historical charge-off 
experience in the calculation, therefore, as those charge-offs begin to be eliminated from the calculation, the allowance for 
probable loan losses will be impacted.  Net income was also positively impacted by a tax refund of $4.9 million received 
in the second quarter as a result of an amended tax return for the 2012 tax year.  In September 2014, the Company amended 
its 2012 federal income tax return as a result of a tax opinion obtained regarding a judgment against the Company paid in 
2012 after litigation related to tax matters in the Company’s 2004 acquisition of Local Financial Corporation (“LFIN”).  
Litigation against the Company was initiated by the former controlling shareholders of LFIN with respect to such tax 
matters.  On March 5, 2010, a judgment against the Company was entered on a jury verdict in the U.S. District Court for 

5 

 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
  
   
  
   
 
 
  
   
  
   
  
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
      
 
      
 
       
 
  
 
 
 
 
  
 
 
 
  
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
  
  
  
the Western District of Oklahoma.  The Company subsequently appealed the decision and on January 5, 2012, the United 
States  Court  of  Appeals  Tenth  Circuit  affirmed  the  judgment  and  it  became  final  and  unappealable  and  the  Company 
recorded the majority of the payment of the judgment as a non-deductible expense in the Company’s 2012 federal income 
tax return.  The Company engaged legal counsel to review the deductibility of the judgment and, upon receiving the tax 
opinion,  amended  the  2012  tax  return  to  report  the  payment  as  a  deductible  expense.    The  Internal  Revenue  Service 
examined the amended return and at the conclusion of the exam, allowed a certain portion of the judgment to be deducted 
as a necessary and ordinary business expense.  Net income for the year ended December 31, 2017 was negatively impacted 
by a charge of $5.8 million, $3.7 million after tax, taken by the lead bank subsidiary in connection with the termination of 
its long-term repurchase agreements outstanding in order to help manage its long-term funding costs, recorded in the first 
quarter of 2017.  Net income for the year ended December 31, 2016 decreased by 2.0% compared to the same period in 
2015 and was negatively impacted by a small decrease in the net interest margin as a result of a decrease in interest income 
on available-for-sale securities, and an increase in non-interest expense. The decrease in interest income on available-for-
sale securities is due to a decrease in the average outstanding balance of such investments.  The decrease in the balance is 
being driven primarily by the lack of available investments in the market that fit the Company’s investment profile and 
investment goals.  The increase in non-interest income can be attributed to an increase in income from other investments, 
which is being positively impacted by the sale of an investment by the merchant banking entities in which the Company 
holds an equity interest, the Company’s share of revenue on a non-financial equity investment it holds accounted for under 
the equity method of accounting, and insurance proceeds from a policy the lead bank subsidiary had purchased to cover 
the cost of employee compensation and benefit programs, resulting in income of approximately $5.0 million, after tax. 
The  increase  in  non-interest expense  can be  attributed  primarily to  a  charge of  $7.0 million, $4.6 million  after  tax,  to 
unwind a portion of a subsidiary bank’s long-term repurchase agreements in order to improve the net interest margin in 
the long term.  Also contributing to the increase is an increase of $3.9 million, $2.5 million after tax,  in software and 
software maintenance costs arising from additional investments made by the Company in its network infrastructure.     

Net Interest Income 

Net interest income is the spread between income on interest-earning assets, such as loans and securities, and the 
interest expense on liabilities used to fund those assets, such as deposits, repurchase agreements and funds borrowed. Net 
interest income is the Company’s largest source of revenue. Net interest income is affected by both changes in the level of 

6 

interest rates and changes in the amount and composition of interest-earning assets and interest-bearing liabilities. Tax-
exempt yields have not been adjusted to a tax-equivalent basis. 

For the years ended December 31, 
2016 
Average 
Rate/Cost 

2017 
Average 
Rate/Cost 

2015 
Average 
Rate/Cost 

Assets 
Interest earning assets: 

Loan, net of unearned discounts: 

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Investment securities: 

Taxable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax-exempt  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total interest-earning assets . . . . . . . . . . . . . . . . . . . . . . . . . . .

 5.27 %  
 3.29 

 2.08 
 4.10 
 0.74 
 3.97 % 

 5.06 %  
 3.28 

 1.97 
 4.08 
 0.24 
 3.75 % 

 5.14 % 
 3.35 

 2.00 
 4.11 
 0.14 
 3.73 % 

Liabilities 

Interest bearing liabilities: 

Savings and interest bearing demand deposits . . . . . . . . . . . . . . .
Time deposits: 

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securities sold under repurchase agreements . . . . . . . . . . . . . . . .
Other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Junior subordinated deferrable interest debentures . . . . . . . . . . .
Total interest bearing liabilities . . . . . . . . . . . . . . . . . . . . . . . .

 0.19 % 

 0.15 % 

 0.12 % 

 0.46 
 0.44 
 1.64 
 1.23 
 3.36 
 0.57 % 

 0.46 
 0.41 
 2.75 
 0.49 
 2.85 
 0.62 % 

 0.50 
 0.42 
 2.72 
 0.19 
 2.40 
 0.60 % 

The level of interest rates and the volume and mix of earning assets and interest-bearing liabilities impact net 
income and net interest margin. The yield on average interest-earning assets increased 5.9% from 3.75% in 2016 to 3.97% 
in 2017, and the rates paid on average interest-bearing liabilities decreased 8.1% from 0.62% in 2016 to 0.57% in 2017. 
The yield on average interest-earning assets increased 0.5% from 3.73% in 2015 to 3.75% in 2016, and the rates paid on 
average interest-bearing liabilities increased 3.3% from .60% in 2015 to .62% in 2016. The majority of the Company’s 
taxable investment securities are invested in mortgage backed securities and during rapid increases or reduction in interest 
rates, the yield on these securities do not re-price as quickly as the loans. 

The following table analyzes the changes in net interest income during 2017, 2016 and 2015 and the relative 
effect of changes in interest rates and volumes for each major classification of interest-earning assets and interest-bearing 

7 

 
 
 
 
liabilities. Non-accrual loans have been included in assets for the purpose of this analysis, which reduces the resulting 
yields: 

2017 compared to 2016 
Net increase (decrease) due to 
Rate(1) 
Total 
(Dollars in Thousands) 

  Volume(1) 

2016 compared to 2015 
Net increase (decrease) due to 
Rate(1) 
Total 
(Dollars in Thousands) 

  Volume(1) 

Interest earned on: 

Loans, net of unearned discounts: 

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   $  12,373   $  12,622   $   24,995   $   6,111   $   (4,966)  $ 
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(325)

(307)

(118)

(490)

18

 1,145 
(608)

Investment securities:

Taxable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax-exempt  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total interest income . . . . . . . . . . . . . . . . . . . . . . . .    $   9,511   $  17,711   $   27,222   $  (2,466)  $   (6,374)  $   (8,840) 

 2,814 
(700)
420     

 (8,475) 
(963)
61

 (1,287) 
(88)
85

 (7,188) 
(875)
 (24)

 4,588 
64
 419

 (1,774) 
(764)

1     

Interest incurred on:

Savings and interest bearing demand deposits . . . .    $ 
Time deposits:

 207   $   1,439   $ 

 1,646   $ 

 64   $ 

 905   $ 

 969 

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Securities sold under repurchase agreements . . . . .
Other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . .
Junior subordinated deferrable interest 

(433)
(108)
 (9,815) 
 1,275 

61
253
 (4,444) 
 6,575 

(372)
145     

 (14,259) 
 7,850 

(544)
 (136)
 (3,083) 
(432)

(502)
(88)
182
1,945

(1,046)
(224)
(2,901)
1,513

debentures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 501 
 3,173   $   (1,188) 
Net interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  18,409   $  13,011   $   31,420   $   1,895   $   (9,547)  $   (7,652) 

Total interest expense . . . . . . . . . . . . . . . . . . . . . . . .    $  (8,898)  $   4,700   $   (4,198)  $  (4,361)  $ 

(230)

 792 

(24)

816

731

(1) The change in interest due to both rate and volume has been allocated to volume and rate changes in proportion to the relationship of the absolute

dollar amounts of the change in each. 

As part of the strategy to manage interest rate risk, the Company strives to manage both assets and liabilities so 
that interest sensitivities match. One method of calculating interest rate sensitivity is through gap analysis. A gap is the 
difference between the amount of interest rate sensitive assets and interest rate sensitive liabilities that re-price or mature 
in a given time period. Positive gaps occur when interest rate sensitive assets exceed interest rate sensitive liabilities, and 
negative gaps occur when interest rate sensitive liabilities exceed interest rate sensitive assets. A positive gap position in 
a  period  of  rising  interest  rates  should  have  a  positive  effect  on  net  interest  income  as  assets  will  re-price  faster  than 
liabilities. Conversely, net interest income should contract somewhat in a period of falling interest rates. Management can 
quickly change the Company’s interest rate position at any given point in time as market conditions dictate. Additionally, 
interest rate changes do not affect all categories of assets and liabilities equally or at the same time. Analytical techniques 
employed by the Company to supplement gap analysis include simulation analysis to quantify interest rate risk exposure. 
The gap analysis prepared by management is reviewed by the Investment Committee of the Company twice a year. The 
Investment Committee is comprised of certain members of the board of directors, senior managers of the various Company 
bank  subsidiaries  along  with  consultants.  Management  currently  believes  that  the  Company  is  properly  positioned  for 
interest rate changes; however, if management determines at any time that the Company is not properly positioned, it will 
strive to adjust the interest rate sensitive assets and liabilities in order to manage the effect of interest rate changes. 

The Company has established guidelines for acceptable volatility of projected net interest income on the income 
simulation analysis and the guidelines are reviewed at least annually. As of December 31, 2017, in rising rate scenarios of 
+100, +200, +300 and +400 basis points, the guidelines established by management require that the net interest income
not vary by more than plus or minus 15%, 15%, 15%, and 20%, respectively and in a decreasing rate scenario of -100
basis points, that the net interest income not vary by more than plus or minus 15%. At December 31, 2017, the income
simulations show that a rate shift of -100, +100, +200, +300 and +400 basis points in interest rates up will vary projected
net interest income for the coming 12 month period by -3.21%, +4.23%, +8.26%, +12.22% and +15.96%, respectively.

8 

 
 
 
The basis point shift in interest rates is a hypothetical rate scenario used to calibrate risk, and does not necessarily represent 
management’s current view of future market developments. The Company believes that it is properly positioned for a 
potential interest rate increase or decrease. 

Allowance for Probable Loan Loss 

The  following  table  presents  information  concerning  the  aggregate  amount  of  non-accrual,  past  due  and 

restructured domestic loans; certain loans may be classified in one or more categories: 

Loans accounted for on a non-accrual basis . . . . .     $ 
Accruing loans contractually past due ninety days 
or more as to interest or principal payments . . . . .    

2017 

2016 

 54,730   $ 

 36,858   $ 

December 31,  
2015 
(Dollars in Thousands) 
 47,320   $ 

2014 

2013 

 63,559   $ 

 62,823  

 6,590  

 5,215  

 11,174  

 9,988  

 7,197  

The allowance for probable loan losses increased 4.7% to $67,687,000 at December 31, 2017 from $64,661,000 
at December 31, 2016. The allowance was 1.07% of total loans, net of unearned income at December 31, 2017 and 1.08% 
at December 31, 2016. The provision for probable loan losses charged to expense decreased $8,638,000 to $11,221,000 
for the year ended December 31, 2017 from $19,859,000 for the same period in 2016.  The decrease in the provision for 
probable  loan losses  charged  to  expense  for  the  year  ended  December 31,  2017  can be  attributed  to  a  decrease  in  the 
historical  charge-off  experience  in  the  commercial  category  of  the  allowance  for  probable  loan  loss  calculation.    As 
discussed in prior periods, charge-offs had increased due to the deterioration of one relationship that is secured by multiple 
pieces of transportation equipment beginning in the fourth quarter of 2014.  The Company uses a three year historical 
charge-off experience in the calculation, therefore, as those charge-offs begin to be eliminated from the calculation, the 
allowance for probable loan losses will be impacted.  The decrease in the provision for probable loan losses charged to 
expense for the year ended December 31, 2016 can be attributed to two  large recoveries on loans that had been charged 
off in prior years of approximately $10.4 million.  The recoveries positively impacted the balance in the allowance for 
probable loan losses and resulted in a decrease to provision expense.  The increase in the provision for probable loan losses 
charged to expense for the year ended December 31, 2015 can be attributed to an increase in the portion of the allowance 
for  probable  loan  losses  calculated  based  on  actual  historical  loss  experience  in  the  commercial  loan  category  of  the 
Company’s loan portfolio.  The decrease in the allowance at December 31, 2014 compared to the same period in 2013 is 
due to a charge down in an impaired commercial relationship that is mainly secured by multiple pieces of transportation 
equipment, the value of which fluctuates due to market factors and the amount of use of the equipment.  The provision for 
probable loan losses charged to expense decreased for the year ended December 31, 2014 compared to the same period in 
2013 partially due to a specific reserve added in 2013 for the relationship that is mainly secured by multiple pieces of 
transportation equipment.  

9 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
     
     
 
 
 
 
  
  
  
  
  
The following table details loans accounted for as “troubled debt restructuring,” segregated by loan class. Loans 
accounted  for  as  troubled  debt  restructuring  are  included  in  impaired  loans.  See  Note 1  to  the  Consolidated  Financial 
Statements. 

December 31, 
2017 

December 31, 
2016 

(Dollars in Thousands) 

Domestic 

Commercial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Commercial real estate: farmland & commercial  . . . . . . . . . . . . . . . . . . . . . .
Residential: first lien  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Residential: junior lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consumer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total troubled debt restructuring  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 

$ 

 6,910  
 — 
 6,140 
 712 
 1,237 
 347 
 15,346  

$ 

$ 

 10,710 
 3,086 
 6,181 
 812 
 1,269 
 360 
 22,418 

The following table presents information concerning the aggregate amount of non-accrual and past due foreign 

loans extended to persons or entities in foreign countries. Certain loans may be classified in one or more category: 

Loans accounted for on a non-accrual basis . . . .     $ 
Accruing loans contractually past due ninety days 
or more as to interest or principal payments . . . .

2017 

2016 

 —   $ 

 387   $ 

December 31, 
2015 
(Dollars in Thousands) 
 365   $ 

2014 

2013 

—   $ 

 667 

 11 

 442 

—  

—  

—  

The gross income that would have been recorded during 2017, 2016 and 2015 on non-accrual loans in accordance 
with  their  original  contract  terms  was  approximately  $977,000,  $2,438,000  and  $3,279,000  on  domestic  loans  and 
approximately $0, $23,800, and $19,000 on foreign loans, respectively. The amount of interest income on such loans that 
was recognized in 2017, 2016 and 2015 was approximately $4,000, $0, and $844,000 on domestic loans and $0, $0, and 
$0 for foreign loans, respectively. 

Generally, loans are placed on non-accrual status if principal or interest payments become 90 days past due and/or 
management  deems  the  collectibility  of  the  principal  and/or  interest  to  be  in  question,  as  well  as  when  required  by 
applicable  regulatory  guidelines.  Interest  income  on  non-accrual  loans  is  recognized  only  to  the  extent  payments  are 
received or when, in management’s opinion, the creditor’s financial condition warrants reestablishment of interest accruals. 
Under special circumstances, a loan may be more than 90 days delinquent as to interest or principal and not be placed on 
non-accrual status. This situation generally results when a bank subsidiary has a borrower who is experiencing financial 
difficulties, but not to the extent that requires a restructuring of indebtedness. The majority of this category is composed 
of loans that are considered to be adequately secured and/or for which there has been a recent history of payments. When 
a loan is placed on non-accrual status, any interest accrued, not paid, is reversed and charged to operations against interest 
income. 

Loan  commitments,  consisting  of  unused  commitments  to  lend,  letters  of  credit,  credit  card  lines  and  other 
approved loans, that have not been funded, were approximately $2,915,326,000 and $2,262,717,000 at December 31, 2017 
and 2016, respectively. See Note 19 to the Consolidated Financial Statements. 

10 

 
 
 
 
 
 
 
The following table summarizes loan balances at the end of each year and average loans outstanding during the 
year; changes in the allowance for probable loan losses arising from loans charged-off and recoveries on loans previously 
charged-off by loan category; and additions to the allowance which have been charged to expense: 

Loans, net of unearned discounts, 
outstanding at December 31 . . . . . . .
Average loans outstanding during 
the year (1) . . . . . . . . . . . . . . . . . . . . .
Balance of allowance at January 1  .
Provision charged to expense. . . . . .
Loans charged off: 

Domestic:

Commercial, financial and 
agricultural . . . . . . . . . . . . . . . . .
Real estate—mortgage . . . . . . .
Real estate—construction . . . . .
Consumer . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . .
Total loans charged off: . . . . . . . . . .
Recoveries credited to allowance: 

Domestic:

Commercial, financial and 
agricultural . . . . . . . . . . . . . . . . .
Real estate—mortgage . . . . . . .
Real estate—construction . . . . .
Consumer . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . .
Total recoveries  . . . . . . . . . . . . . . . .
Net loans charged off . . . . . . . . . . . .
Balance of allowance at 
December 31 . . . . . . . . . . . . . . . . . . .
Ratio of net loans charged-off 
during the year to average loans 
outstanding during the year (1) . . . . .
Ratio of allowance to loans, net of 
unearned discounts, outstanding at 
December 31 . . . . . . . . . . . . . . . . . . .

2017 

2016 

2015 

2014 

2013 

(Dollars in Thousands) 

$  6,348,172   $   5,964,688   $  5,950,914   $  5,679,245   $  5,199,235 

$  6,183,864   $   5,949,048   $  5,844,842   $  5,491,841   $  4,978,833 
 58,193 
$
 22,968 

 70,161 
 14,423 

 64,828 
 24,405 

 66,988 
 19,859 

 64,661 
 11,221 

$ 

$

$

$

 (12,134) 
(441)
(213)
(309)
(1)
 (13,098) 

 4,547 
 269 
 21 
 45 
 21 
 4,903 
 (8,195) 

 (35,029) 
(401)
(16)
(414)
(41)
 (35,901) 

 7,229 
 299 
 6,099 
 69 
 19 
 13,715 
 (22,186) 

 (25,294) 
(432)
(695)
(704)
—  
 (27,125) 

 4,098 
 461 
 141 
 170 
 10 
 4,880 
 (22,245) 

 (21,003) 
(1,012)
(680)
(719)
 (51)
 (23,465) 

 3,086 
 291 
 72 
 210 
 50 
 3,709 
 (19,756) 

 (12,342) 
 (1,252) 
 (278) 
 (561) 
(22)
 (14,455) 

 2,842 
 359 
 87 
 162 
 5 
 3,455 
 (11,000) 

$

 67,687   $ 

 64,661   $

 66,988   $

 64,828   $

 70,161 

 0.13 %  

 0.37 % 

 0.38 % 

 0.36 % 

 0.22 % 

 1.07 %  

 1.08 % 

 1.13 % 

 1.14 % 

 1.35 % 

(1) The average balances for purposes of the above table are calculated on the basis of daily balances. 

11 

  
  
The allowance for probable loan losses has been allocated based on the amount management has deemed to be 
reasonably  necessary  to  provide  for  the  probable  losses  incurred  within  the  following  categories  of  loans  at  the  dates 
indicated and the percentage of loans to total loans in each category: 

2017 

2016 

  Allowance 

Percent 
of total 

  Allowance 

Percent
of total 

At December 31, 
2015 

2014 

2013 

 Percent 
  Allowance   of total 
(Dollars in Thousands) 

  Allowance 

Percent 
of total 

  Allowance 

Percent
of total 

  $  35,885 

 52.3 %  $  32,928 

 50.2 %  $  35,379 

 52.1 %  $  41,881 

 54.7 %  $  47,676 

 55.7 %

  12,242  

 17.9  

  11,355  

 17.3 

  10,979  

 16.2  

 8,272  

 16.0  

 8,061  

 16.3 

  18,183  
 535 
 842 
$  67,687 

 26.5  
 0.8 
 2.5 

  18,887  
 607 
 884 
 100.0 %  $  64,661 

 28.8 
 0.9 
 2.8 

  12,955  
 660 
 1,060 
 100.0 %  $  66,988    100.0 %  $  64,828  

  18,818  
 659 
 1,152 

 27.7  
 1.0 
 3.0 

 24.9  
 1.1 
 3.3 

  12,541  
 750 
 1,133 
 100.0 %  $  70,161  

 23.2 
 1.3 
 3.5 
 100.0 %

Commercial, 
Financial and 
Agricultural . . . . .
Real estate—
Mortgage . . . . . . .
Real estate—
Construction  . . . .
Consumer  . . . . . .
Foreign  . . . . . . . .

The  allowance  for  probable  loan  losses  primarily  consists  of  the  aggregate  loan  loss  allowances  of  the  bank 
subsidiaries. The allowances are established through charges to operations in the form of provisions for probable loan 
losses. 

The bank subsidiaries charge off that portion of any loan which management considers to represent a loss as well 
as that portion of any other loan which is classified as a “loss” by bank examiners. Commercial, financial and agricultural 
or real estate loans are generally considered by management to represent a loss, in whole or part, (i) when an exposure 
beyond  any  collateral  coverage  is  apparent,  (ii) when  no  further  collection  of  the  portion  of  the  loan  so  exposed  is 
anticipated  based  on  actual  results,  (iii) when  the  credit  enhancements,  if  any,  are  not  adequate,  and  (iv) when  the 
borrower’s financial condition would indicate so. Generally, unsecured consumer loans are charged off when 90 days past 
due. The decrease in charge-offs for the year ended December 31, 2017 can be attributed to the increases experienced in 
2016.  As discussed in prior periods, charge-offs had increased due to the deterioration of one relationship that is secured 
by multiple pieces of transportation equipment beginning in the fourth quarter of 2014 and increased charge-offs for the 
twelve months ended December 31, 2016 and December 31, 2015.  In March 2016, litigation against the management of 
the borrower was filed in the State of Nevada, resulting in a going concern issue with the borrower’s operations and the 
future use of the transportation equipment pledged as collateral on the relationship.  As a result, management, in accordance 
with its credit review procedures, re-evaluated the collateral values on the equipment in light of the new circumstances 
and  reduced  the  collateral  values  accordingly,  resulting  in  a  further  charge-down of  the  relationship  of  approximately 
$19.4 million, which is included in the losses charged to the allowance in the commercial category in the table detailing 
the activity for the twelve months ended December 31, 2016.  The same relationship had been previously charged down 
in the years ended December 31, 2015 and 2014.  Two large recoveries on loans charged off in prior years are included in 
the  recoveries  credited  to  the  allowance  in  the  table  detailing  activity  for  the  year  ended  December  31,  2016.    The 
recoveries occurred in the first and third quarters of 2016 in the amounts of $4.4 million and $6 million, respectively, and 
are included in the Commercial and Commercial Real Estate: Other Construction and Land Development categories.  The 
increase in charge-offs for the years ended December 31, 2015 and 2014 in the Commercial category can be attributed to 
a charge down of a relationship that is primarily secured by multiple pieces of transportation equipment.  The relationship 
was charged down by $13.5 million and $8.5 million for the years ended December 31, 2015 and December 31, 2014, 
respectively. 

The  allowance  for  probable  loan  losses  is  a  reserve  established  through  a  provision  for  probable  loan  losses 
charged to expense, which represents management’s best estimate of probable loan losses within the existing portfolio of 
loans. The Company’s allowance for probable loan loss methodology is based on guidance provided in Securities and 
Exchange  Commission  Staff  Accounting  Bulletin  No. 102,  “Selected  Loan  Loss  Allowance  Methodology  and 
Documentation Issues” and includes allowance allocations calculated in accordance with ASC 310, “Receivables” and 
ASC 450, “Contingencies.” The reserve allocated to loans individually evaluated for impairment at December 31, 2017 
can be primarily attributed to a relationship secured by a water park that is impaired at December 31, 2017.  The reserve 

12 

 
 
 
 
allocated to loans individually evaluated for impairment at December 31, 2016 can be primarily attributed to the charge-
down of the above discussed relationship secured by multiple pieces of transportation equipment.  The reserve allocated 
to loans individually evaluated for impairment at December 31, 2015 decreased approximately $10.0 million, primarily as 
a result of a charge down in the above described relationship secured by multiple pieces of transportation equipment.  The 
reserve  allocated  to  loans  collectively  evaluated  for  impairment  at  December  31,  2015  increased  approximately 
$12.0 million and can be attributed to an increase in the actual historical charge-off experience in the commercial loan 
category  of  the  calculation.    The  reserve  allocated  by  categories  shows  an  overall  decrease  of  $5.3 million  from 
December 31, 2013 to December 31, 2014. The decrease for the year ended December 31, 2014 compared to the year 
ended December 31, 2013 is partially due to a charge down in the above-described relationship secured by multiple pieces 
of transportation equipment. Please refer to Note 4—Allowance for Probable Loan Losses in the accompanying Notes to 
the consolidated Financial Statements. 

While  management  of  the  Company  considers  that  it  is  generally  able  to  identify  borrowers  with  financial 
problems  reasonably  early  and  to  monitor  credit  extended  to  such  borrowers  carefully,  there  is  no  precise  method  of 
predicting loan losses. The determination that a loan is likely to be uncollectible and that it should be wholly or partially 
charged off as a loss is an exercise of judgment. Similarly, the determination of the adequacy of the allowance for probable 
loan losses can be made only on a subjective basis. It is the judgment of the Company’s management that the allowance 
for probable loan losses at December 31, 2017 was adequate to absorb probable losses from loans in the portfolio at that 
date. See Critical Accounting Policies on page 25. Should any of the factors considered by management in evaluating the 
adequacy of the allowance for probable loan losses change, the Company’s estimate of probable loan losses could also 
change, which could affect the level of future provisions for probable loan losses. 

Non-Interest Income 

Service charges on deposit accounts . . . . . . . . .      $ 
Other service charges, commissions and fees 

 72,868     $ 

 73,581     

  Year Ended     Year Ended    
  December 31,    December 31,   

2017 

2016 

Percent 
Increase 
(Decrease) 
  2017 vs. 2016 
(Dollars in Thousands) 
 (1.0) %  $ 

  Year Ended    
  December 31,   
2015 

Percent 
Increase 
(Decrease) 
  2016 vs. 2015   

 78,825     

 (6.7)%

Banking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Non-banking . . . . . . . . . . . . . . . . . . . . . . . . . .   
Investment securities transactions, net . . . . . . . .   
Other investments, net. . . . . . . . . . . . . . . . . . . . .   
Other income . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 46,267   
 7,006   
 (2,626)   
 23,827   
 13,647   
Total non-interest income  . . . . . . . . . . . . . . .    $   150,406   $   161,702   

 44,964  
 7,345  
 (4,774)  
 18,918  
 11,085  

 (2.8)  
 4.8  
 81.8  
 (20.6)  
 (18.8)  

 44,971   
 7,223   
 (3,682)  
 16,969   
 11,428   
 (7.0) %  $   155,734   

 2.9  
 (3.0) 
 (28.7) 
 40.4  
 19.4  

 3.8 %

Total non-interest income for the year ended December 31, 2017 decreased by 7.0% compared to the same period 
of 2016.  The decrease in total non-interest income for the year ended December 31, 2017 can be attributed to an increase 
in losses recognized on the sales of certain available-for-sale investment securities in 2017 to re-position a portion of the 
Company’s investment portfolio and to certain non-recurring items recorded in 2016.  Total non-interest income for the 
year ended December 31, 2016 increased by 3.8% compared to the same period of 2015.  The increase in non-interest 
income for the year ended Dcember 31, 2016 compared to the same period of 2015 can be attributed to an increase in 
income from other investments, which is being positively impacted by the sale of an investment by the merchant banking 
entities  in  which  the  Company  holds  an  equity  interest,  the  Company’s  share  of  revenue  on  a  non-financial  equity 
investment it holds accounted for under the equity method of accounting, and insurance proceeds from a policy the lead 
bank subsidiary had purchased to cover the cost of employee compensation and benefit programs, resulting in income of 
approximately $7.8 million.  Non-interest income was negatively impacted by a decrease in service charges on deposits 
for the year ended December 31, 2016 compared to the same period of 2015 and can be attributed to a  decrease in the 
volume of overdraft charges on deposit accounts.     

13 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
 
 
 
 
 
  
 
  
  
  
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Non-Interest Expense 

Employee compensation and benefits . . . . . . . . .
Occupancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Depreciation of bank premises and equipment . .
Professional fees . . . . . . . . . . . . . . . . . . . . . . . . . .
Deposit insurance assessments . . . . . . . . . . . . . . .
Net expense, other real estate owned . . . . . . . . . .
Amortization of identified intangible assets . . . .
Advertising  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Early termination fee—securities sold under 
repurchase agreements  . . . . . . . . . . . . . . . . . . . . .
Software and software maintenance . . . . . . . . . . .
Impairment charges (Total other-than-
temporary impairment charges, $0 net of $0, 
$793 net of $1,147, and $371, net of $1,325, 
included in other comprehensive loss) . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  Year Ended 
Year Ended 
  December 31,  December 31, 

2017 

2016 

Percent 
Increase 
(Decrease) 
  2017 vs. 2016  
(Dollars in Thousands) 

Year Ended 
December 31, 
2015 

Percent 
Increase 
(Decrease) 
  2016 vs. 2015 

   $   132,750    $   128,661 
 26,583 
 24,738 
 13,672 
 5,777 
 5,688 
 128 
 7,814 

 28,439 
 25,281 
 13,650 
 3,294 
 965 
 25 
 7,854 

 3.2 %  $   125,135 
 28,019 
 7.0 
 25,009 
 2.2 
 12,278 
 (0.2) 
 5,938 
 (43.0) 
 5,695 
 (83.0) 
 644 
 (80.5) 
 7,585 
 0.5 

 2.8 % 
 (5.1)  
 (1.1)  
 11.4 
 (2.7)  
 (0.1)  
 (80.1)  
 3.0 

 5,765 
 19,189 

 7,042 
 15,087 

 (18.1) 
 27.2 

 3,510 
 11,225 

 100.6 
 34.4 

 354 
 54,081 
Total non-interest expense . . . . . . . . . . . . . . . .      $   293,748   $   289,625 

 — 
 56,536 

 954 
 (100.0) 
 4.5 
 50,932 
 1.4 %  $   276,924 

 (62.9)  
 6.2 
 4.6 % 

Non-interest expense  for  the  year  ended December 31, 2017  increased 1.4%  compared  to  the  same  period  of 
2016.  Non-interest expense for 2017 was positively impacted by a decrease in deposit insurance assessments arising from 
a decrease in the assessment rate set by the FDIC of $2.4 million and a decrease in the net cost of operations on other real 
estate  owned  as  the  size  of  the  portfolio  has  decreased  from  prior  periods.    Non-interest  expense  for  the  period  was 
negatively impacted by increased technology costs related to certain network infrastructure modifications of $4.1 million 
for the year ended December 31, 2017 compared to the same period of 2016.  Non-interest expense increased 4.6% for the 
year ended December 31, 2016 compared to the same period of 2015.  Non-interest expense for the twelve months ended 
December 31, 2017, 2016 and 2015 was negatively impacted by charges of $5.8 million, $7.0 million, and $3.5 million, 
respectively,  recorded  by  the  Company’s  lead  bank  subsidiary  related  to  the  termination  of  a  portion  of  its  long-term 
repurchase agreements outstanding in order to help manage its long-term funding costs. Non-interest expense for the year 
ended December 31, 2016 was negatively impacted by an increase of $3.9 million in software and software maintenance 
costs arising from additional investments made by the Company in its network infrastructure.     

Effects of Inflation 

The principal component of earnings is net interest income, which is affected by changes in the level of interest 
rates. Changes in rates of inflation affect interest rates. It is difficult to precisely measure the impact of inflation on net 
interest income because it is not possible to accurately differentiate between increases in net interest income resulting from 
inflation and increases resulting from increased business activity. Inflation also raises costs of operations, primarily those 
of employment and services. 

14 

 
 
Financial Condition 

Investment Securities 

The following table sets forth the carrying value of investment securities as of December 31, 2017, 2016 and 

2015: 

December 31,  

2017 

2016 

2015 

(Dollars in Thousands) 

Residential mortgage-backed securities 

Available for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $   3,891,233   $   3,894,470   $   3,893,211  

Obligations of states and political subdivisions 

Available for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 232,951  

 254,972  

 277,704  

Equity securities 

Available for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 27,886  

 27,907  

 28,457  

Other securities 

Held to maturity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 2,400  
Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $   4,154,470   $   4,179,749   $   4,201,772  

 2,400  

 2,400  

The  following  tables  set  forth  the  contractual  maturities  of  investment  securities,  based  on  amortized  cost,  at 
December 31, 2017 and the average yields of such securities, except for the totals, which reflect the weighted average 
yields. Actual maturities will differ from contractual maturities because borrowers may have the right to prepay obligations 
with or without prepayment penalties. 

  Within one 

year 
Adjusted 

After one but 

  within five years 

Adjusted 

After five but 
within ten years 
Adjusted 

Available for Sale Maturing 

After ten years 
Adjusted 

Cost 

  Yield 

Cost 

  Yield 

Cost 

  Yield 

Cost 

  Yield 

(Dollars in Thousands) 

Residential mortgage-backed 
securities  . . . . . . . . . . . . . . . . . .       $ 
Obligations of states and 
political  subdivisions . . . . . . . .        
 —  
Equity securities  . . . . . . . . . . . .         28,075     2.24  

 223,157     4.62 % 
 — % 
Total  . . . . . . . . . . . . . . . . . . .      $  28,840     2.31 %  $   8,357    4.44 %  $  1,190,637    2.80 %  $  2,968,429     2.86 % 

 —   
 —  
 —    —  

 1,939    4.75 %    

 —   

 —   

 —   

 —  

 765     4.97 %  $   8,357    4.44 % 

  1,188,698    2.80 %  $  2,745,272     2.71 % 

  Within one 

year 
Adjusted 

After one but 

  within five years 

Adjusted 

After five but 
within ten years 
Adjusted 

Held to Maturity Maturing 

 After ten years 
Adjusted 

Cost 

  Yield 

Cost 

  Yield 

Cost 

  Yield 

Cost 

  Yield 

(Dollars in Thousands) 

Other securities . . . . . . . . . . . . .      $   2,275     1.79 %  $ 
Total . . . . . . . . . . . . . . . . . . . . . .      $   2,275     1.79 %  $ 

 125     2.59 %  $ 
 125     2.59 %  $ 

—    — %  $ 
—    — %  $ 

—     — % 
—    — % 

Mortgage-backed  securities  are  securities  primarily  issued  by  the  Federal  Home  Loan  Mortgage  Corporation 
(“Freddie  Mac”),  Federal  National  Mortgage  Association  (“Fannie  Mae”),  and  the  Government  National  Mortgage 
Association (“Ginnie Mae”). Investments in mortgage-backed securities issued by Ginnie Mae are fully guaranteed by the 
U.S.  government.  Investments  in  mortgage-backed  securities  issued  by  Freddie  Mac  and  Fannie  Mae  are  not  fully 
guaranteed by the U.S. government; however, the Company believes that the quality of the bonds is similar to other AAA 
rated bonds with limited credit risk, particularly given the placement of Fannie Mae and Freddie Mac into conservatorship 

15 

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
  
      
 
      
 
      
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
 
 
  
 
 
 
 
 
  
 
 
  
  
 
  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
  
 
 
 
 
  
 
 
 
 
 
  
 
 
 
 
 
  
 
 
  
by the federal government in 2008 and because securities issued by others that are collateralized by residential mortgage-
backed securities issued by Fannie Mae or Freddie Mac are rated consistently as AAA rated securities. 

Loans 

The amounts of loans outstanding, by classification, at December 31, 2017, 2016, 2015, 2014 and 2013 are shown 

in the following table: 

December 31, 

2017 

2016 

2015 

2014 

2013 

(Dollars in Thousands) 

Commercial, financial and agricultural . . .
Real estate—mortgage  . . . . . . . . . . . . . . . .
Real estate—construction . . . . . . . . . . . . . .
Consumer . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loans, net of unearned discount . . . . . .

     $  3,322,668     $  2,993,203     $  3,101,748     $  3,107,584     $  2,894,779 
 847,692 
 1,208,508 
 66,414 
 181,842 
$  5,199,235 

 910,326 
 1,414,977 
 61,137 
 185,221 
$  5,679,245 

 962,582 
 1,649,827 
 57,744 
 179,013 
$  5,950,914 

 1,133,525 
 1,683,550 
 49,543 
 158,886 
$  6,348,172 

 1,032,222 
 1,716,875 
 55,168 
 167,220 
$  5,964,688 

The following table shows the amounts of loans (excluding real estate mortgages and consumer loans) outstanding 
as of December 31, 2017, which based on remaining scheduled repayments of principal are due in the years indicated. 
Also, the amounts due after one year are classified according to the sensitivity to changes in interest rates: 

  Within one 

year 

Maturing 

After one but 
After five 
within five 
years 
years 
(Dollars in Thousands) 

Total 

Commercial, financial and agricultural . . . . . . . . . . . . . .
Real estate—construction . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    $  1,057,717     $  1,906,691     $ 

 644,902 
 113,179 

 946,370 
 29,230 

$  1,815,798   $  2,882,291   $ 

 358,260     $  3,322,668 
 1,683,550 
 92,278 
 16,477 
 158,886 
 467,015   $  5,165,104  

Due after one but within five years  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $ 
Due after five years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 

International Operations 

Interest sensitivity 

Fixed Rate 

Variable Rate 

(Dollars in Thousands) 
 176,695     $ 
 88,736 
 265,431   $ 

 2,705,596 
 378,279  
 3,083,875  

On December 31, 2017, the Company had $158,886,000 (1.3% of total assets) in loans outstanding to borrowers 
domiciled  in  foreign  countries,  which  included  primarily  borrowers  domiciled  in  Mexico.  The  loan  policies  of  the 
Company’s bank subsidiaries generally require that loans to borrowers domiciled in foreign countries be primarily secured 
by assets located in the United States or have credit enhancements in the form of guarantees, from significant United States 

16 

 
 
 
 
 
 
 
corporations. The composition of such loans and the related amounts of allocated allowance for probable loan losses as of 
December 31, 2017 and 2016 is presented below. 

Secured by certificates of deposit in United States banks  .
Secured by United States real estate  . . . . . . . . . . . . . . . . . .
Secured by other United States collateral (securities, 
gold, silver, etc.)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unsecured  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other (principally Mexico real estate) . . . . . . . . . . . . . . . . .

For the year ended December 31, 

2017 

Related 
Allowance for 
Probable Losses 

Amount of 
Loans 
(Dollars in Thousands) 

2016 

Related 
Allowance for 
Probable Losses  

  Amount of 

Loans 

    $  103,104     $ 
 35,211 

 330     $  110,036     $ 
 334 

 30,561 

 14,414 
 1,561 
 4,596 
$  158,886 

$ 

 68 
 32 
 78 
 842 

 16,985 
 848 
 8,790 
$  167,220 

$ 

 351 
 218 

 103 
 19 
 193 
 884 

The transactions for the years ended December 31, 2017, 2016 and 2015, in that portion of the allowance for 

probable loan losses related to foreign debt were as follows: 

2017 

2016 
(Dollars in Thousands) 

2015 

 884     $  1,152     $  1,060 
 —  
(41)
 10 
 19 
10
(22)
 82 
(246)
$  1,152 
 884 

(1)
 21 
 20 
(62)
 842 

$ 

Balance at January 1,  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Charge-offs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recoveries  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net charge-offs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charge (credit) to expense . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Balance at December 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 

17 

 
 
 
 
 
 
Deposits 

Deposits: 

Demand—non-interest bearing 

2017 
Average Balance 

2016 
Average Balance 

(Dollars in Thousands) 

Domestic  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total demand non-interest bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Savings and interest bearing demand 

Domestic  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total savings and interest bearing demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time certificates of deposit 

$ 

 2,572,636   $ 

 658,072 
 3,230,708 

 2,612,981 
 617,482 
 3,230,463 

 2,504,360 
 644,230 
 3,148,590 

 2,504,369 
 585,986 
 3,090,355 

$100,000 or more: 

Domestic  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 702,417 
 833,444 

 760,014 
 843,145 

Less than $100,000: 

Domestic  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total time, certificates of deposit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 371,782 
 263,796 
 2,171,439 
 8,632,610   $ 

 409,142 
 280,170 
 2,292,471 
 8,531,416 

$ 

2017 

2016 

2015 

(Dollars in Thousands) 

Interest expense: 

Savings and interest bearing demand 

Domestic  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total savings and interest bearing demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time, certificates of deposit 

$

$

 5,453 
 755 
 6,208 

$

 3,922 
 640 
 4,562 

 3,026 
 567 
 3,593 

$100,000 or more 

Domestic  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 3,644 
 4,105 

 3,881 
 3,929 

 4,693 
 4,116 

Less than $100,000 

Domestic  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total time, certificates of deposit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total interest expense on deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 1,312 
 675 
 9,736 
$  15,944 

 1,447 
 706 
 9,963 
$  14,525 

 1,680 
 744 
 11,233 
$  14,826 

Scheduled maturities of time deposits in amounts of $100,000 or more at December 31, 2017, were as follows: 

Due within 3 months or less . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Due after 3 months and within 6 months . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Due after 6 months and within 12 months . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Due after 12 months  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 557,206 
 348,695 
 404,776 
 135,210 
  $  1,445,887 

The Company offers a variety of deposit accounts having a wide range of interest rates and terms. The Company 
relies primarily on its high quality customer service, sales programs, customer referrals and advertising to attract and retain 
these deposits. Deposits provide the primary source of funding for the Company’s lending and investment activities, and 
the interest paid for deposits must be managed carefully to control the level of interest expense. Deposits at December 31, 

18 

 
 
2017  were  $8,544,892,000,  a  decrease  of  0.8%  from  $8,610,089,000  at  December 31,  2016.  Although  deposits  at 
December 31, 2017 remained relatively consistent with 2016 levels, the Company has experienced growth in deposits over 
the last few years.  The Company is still experiencing a substantial amount of competition for deposits at higher than 
market rates.  As a result, the Company has attempted to maintain certain deposit relationships, but has allowed certain 
deposits to leave as the result of aggressive pricing by competitors.   

Other Borrowed Funds 

Other borrowed funds include FHLB borrowings which are short-term and long-term borrowings issued by the 
FHLB of Dallas at the market price offered at the time of funding.  These borrowings are secured by residential mortgage-
backed investment securities and a portion of the Company’s loan portfolio.  At December 31, 2017, other borrowed funds 
totaled $1,195,225,000, an increase of 63.0% from $733,375,000 at December 31, 2016.  The increase in borrowings can 
be attributed to cash needs to fund daily operations, purchases of available-for-sale securities and the termination of a 
portion of the lead bank subsidary’s long-term outstanding repurchase agreements. 

Return on Equity and Assets 

Certain key ratios for the Company for the years ended December 31, 2017, 2016 and 2015 follows (1): 

Percentage of net income to: 

Average shareholders’ equity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
Average total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
Percentage of average shareholders’ equity to average total assets . . . . . . . . . . . .     
Percentage of cash dividends per share to net income per share . . . . . . . . . . . . . .     

 8.62 %   
 1.31  
 15.19  
 27.70  

 7.70 %   
 1.12  
 14.60  
 29.56  

 8.44 % 
 1.13  
 13.35  
 28.12  

(1)  The average balances for purposes of the above table are calculated on the basis of daily balances. 

Years ended 
December 31,  
2016 

2015 

2017 

Liquidity and Capital Resources 

Liquidity 

The maintenance of adequate liquidity provides the Company’s bank subsidiaries with the ability to meet potential 
depositor  withdrawals,  provide  for  customer  credit  needs,  maintain  adequate  statutory  reserve  levels  and  take  full 
advantage of high-yield investment opportunities as they arise. Liquidity is afforded by access to financial markets and by 
holding appropriate amounts of liquid assets. The Company’s bank subsidiaries derive their liquidity largely from deposits 
of individuals and business entities. Such deposits comprised approximately 27%, 28%, and 27% of the Company’s bank 
subsidiaries’ total deposits at each of the years ended December 31, 2017, 2016 and 2015, respectively. Other important 
funding sources for the Company’s bank subsidiaries during 2017 and 2016 were borrowings from the FHLB, securities 
sold  under  repurchase  agreements  and  large  certificates  of  deposit,  requiring  management  to  closely  monitor  its 
asset/liability mix in terms of both rate sensitivity and maturity distribution. The Company’s bank subsidiaries have had a 
long-standing relationship with the FHLB and keep open, unused, lines of credit in order to fund liquidity needs. In the 
event that the FHLB indebtedness is not renewed, the repayment of the outstanding indebtedness would more than likely 
be repaid through proceeds generated from the sales of unpledged available-for-sale securities. The Company maintains a 
sizable,  high  quality  investment  portfolio  to  provide  significant  liquidity.  These  securities  can  be  sold  or  sold  under 
agreements  to  repurchase,  to  provide  immediate  liquidity.  As  in  the  past,  the  Company  will  continue  to  monitor  the 
volatility and cost of funds in an attempt to match maturities of rate-sensitive assets and liabilities and respond accordingly 
to anticipated fluctuations in interest rates over reasonable periods of time. 

19 

 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
  
          
           
           
 
 
Asset/Liability Management 

The Company’s fund management policy has as its primary focus the measurement and management of the banks’ 
earnings at risk in the face of rising or falling interest rate forecasts. The earliest and most simplistic concept of earnings 
at risk measurement is the gap report, which is used to generate a rough estimate of the vulnerability of net interest income 
to changes in market rates as implied by the relative re-pricings of assets and liabilities. The gap report calculates the 
difference  between  the  amounts  of  assets  and  liabilities  re-pricing  across  a  series  of  intervals  in  time,  with  emphasis 
typically placed on the one-year period. This difference, or gap, is usually expressed as a percentage of total assets. 

If an excess of liabilities over assets matures or re-prices within the one-year period, the statement of condition 
is said to be negatively gapped. This condition is sometimes interpreted to suggest that an institution is liability-sensitive, 
indicating that earnings would suffer from rising rates and benefit from falling rates. If a surplus of assets over liabilities 
occurs in the one-year time frame, the statement of condition is said to be positively gapped, suggesting a condition of 
asset sensitivity in which earnings would benefit from rising rates and suffer from falling rates. 

The gap report thus consists of an inventory of dollar amounts of assets and liabilities that have the potential to 
mature or re-price within a particular period. The flaw in drawing conclusions about interest rate risk from the gap report 
is that it takes no account of the probability that potential maturities or re-pricings of interest-rate-sensitive accounts will 
occur, or at what relative magnitudes. Because simplicity, rather than utility, is the only virtue of gap analysis, financial 
institutions increasingly have either abandoned gap analysis or accorded it a distinctly secondary role in managing their 
interest-rate risk exposure. 

The  net  interest  rate  sensitivity  at  December 31,  2017,  is  illustrated  in  the  following  table.  This  information 
reflects  the  balances  of  assets  and  liabilities  whose  rates  are  subject  to  change.  As  indicated  in  the  table  below,  the 
Company is liability-sensitive during the early time periods and is asset-sensitive in the longer periods. The table shows 
the sensitivity of the statement of condition at one point in time and is not necessarily indicative of the position at future 
dates. 

20 

INTEREST RATE SENSITIVITY 
(Dollars in Thousands) 

December 31, 2017 

Rate sensitive assets 
Investment securities . . . . . . . . . . . . . . . . .
Loans, net of non-accruals . . . . . . . . . . . .

3 Months 
or Less 

Over 3 
Months to 
1 Year 

Rate/Maturity 

Over 1 
Year to 5 
Years 

(Dollars in Thousands) 

Over 5 
Years 

Total 

$ 

 354,943 
 4,816,134 

$ 

 712,342 
 212,144 

$  2,852,996 
 263,919 

$ 

 234,189 
 1,001,245 

$   4,154,470 
 6,293,442 

Total earning assets . . . . . . . . . . . . . . . . . .

$  5,171,077 

$ 

 924,486 

$  3,116,915 

$   1,235,434 

$  10,447,912 

Cumulative earning assets  . . . . . . . . . . . .

$  5,171,077 

$  6,095,563 

$  9,212,478 

$  10,447,912 

Rate sensitive liabilities 

Time deposits . . . . . . . . . . . . . . . . . . . . . . .
Other interest bearing deposits . . . . . . . . .
Securities sold under repurchase 
agreements . . . . . . . . . . . . . . . . . . . . . . . . .
Other borrowed funds . . . . . . . . . . . . . . . .
Junior subordinated deferrable interest 
debentures  . . . . . . . . . . . . . . . . . . . . . . . . .

$ 

 863,461 
 3,245,131  

$ 

 996,047 
 —  

$ 

 196,910 
 —  

$ 

 88 
 — 

$   2,056,506 
 3,245,131 

 342,824 
 945,225  

 10,981 
 —  

 160,416  

 —  

 —  
 — 

 —  

 — 
 250,000 

 353,805 
 1,195,225 

 — 

 160,416 

Total interest bearing liabilities . . . . . . . .

$  5,557,057 

$  1,007,028 

$ 

 196,910 

$ 

 250,088 

$   7,011,083 

Cumulative sensitive liabilities. . . . . . . . .

$  5,557,057 

$  6,564,085 

$  6,760,995 

$   7,011,083 

Repricing gap . . . . . . . . . . . . . . . . . . . . . . .
Cumulative repricing gap . . . . . . . . . . . . .
Ratio of interest-sensitive assets to 
liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratio of cumulative, interest-sensitive 
assets to liabilities . . . . . . . . . . . . . . . . . . .

$   (385,980)  $ 
 (385,980) 

 (82,542)   $  2,920,005   $ 
 (468,522)  

   2,451,483 

 985,346   $   3,436,829 

 3,436,829 

 0.93 

 0.93 

 0.92 

 0.93 

 15.83 

 1.36 

 4.94 

 1.49 

 1.49 

The detailed inventory of statement of condition items contained in gap reports is the starting point of income 
simulation analysis. Income simulation analysis also focuses on the variability of net interest income and net income, but 
without the limitations of gap analysis. In particular, the fundamental, but often unstated, assumption of the gap approach 
that every statement of condition item that can re-price will do so to the full extent of any movement in market interest 
rates is taken into consideration in income simulation analysis. 

Accordingly, income simulation analysis captures not only the potential of assets and liabilities to mature or re-
price,  but  also  the  probability  that  they  will  do  so.  Moreover,  income  simulation  analysis  focuses  on  the  relative 
sensitivities of these balance sheet items and projects their behavior over an extended period of time in a motion picture 
rather than snapshot fashion. Finally, income simulation analysis permits management to assess the probable effects on 
balance sheet items not only of changes in market interest rates, but also of proposed strategies for responding to such 
changes.  The  Company  and  many  other  institutions  rely  primarily  upon  income  simulation  analysis  in  measuring  and 
managing exposure to interest rate risk. 

The Company has established guidelines for acceptable volatility of projected net interest income on the income 
simulation analysis and the guidelines are reviewed at least annually. As of December 31, 2017, in rising rate scenarios of 
+100, +200, +300 and +400 basis points, the guidelines established by management require that the net interest income

21 

 
 
not vary by more than plus or minus 15%, 15%, 15%, and 20%, respectively and in a decreasing rate scenario of -100 
basis points, that the net interest income not vary by more than plus or minus 15%. At December 31, 2017, the income 
simulations show that a rate shift of -100, +100, +200, +300 and +400 basis points in interest rates up will vary projected 
net interest income for the coming 12 month period by -3.21%, +4.23%, +8.26%, +12.22% and +15.96%, respectively. 
The basis point shift in interest rates is a hypothetical rate scenario used to calibrate risk, and does not necessarily represent 
management’s current view of future market developments. The Company believes that it is properly positioned for a 
potential interest rate increase or decrease. 

All the measurements of risk described above are made based upon the Company’s business mix and interest rate 
exposures at the particular point in time. The exposure changes continuously as a result of the Company’s ongoing business 
and its risk management initiatives. While management believes these measures provide a meaningful representation of 
the Company’s interest rate sensitivity, they do not necessarily take into account all business developments that have an 
effect on net income, such as changes in credit quality or the size and composition of the statement of condition. 

Principal sources of liquidity and funding for the Company are dividends from subsidiaries and borrowed funds, 
with such funds being used to finance the Company’s cash flow requirements. The Company closely monitors the dividend 
restrictions and availability from the bank subsidiaries as disclosed in Note 20 to the Consolidated Financial Statements. 
At December 31, 2017, the aggregate amount legally available to be distributed to the Company from bank subsidiaries as 
dividends  was  approximately  $731,850,000,  assuming  that  each  bank  subsidiary  continues  to  be  classified  as  “well-
capitalized” under the applicable regulations in effect at December 31, 2017. The restricted capital (capital and surplus) of 
the  bank  subsidiaries  was  approximately  $784,357,000  as  of  December 31,  2017.  The  undivided  profits  of  the  bank 
subsidiaries were approximately $1,878,736,000 as of December 31, 2017.  

At December 31, 2017, the Company has outstanding $1,195,000,000 in other borrowed funds and $160,416,000 
in junior subordinated deferrable interest debentures. In addition to borrowed funds and dividends, the Company has a 
number of other available alternatives to finance the growth of its existing banks as well as future growth and expansion. 

Capital 

The Company maintains an adequate level of capital as a margin of safety for its depositors and shareholders. At 
December 31,  2017,  shareholders’  equity  was  $1,838,980,000  compared  to  $1,724,667,000  at  December 31,  2016,  an 
increase of $114,313,000, or 6.6%. Shareholders’ equity increased primarily due to the retention of earnings, offset by the 
payment of cash dividends to shareholders and repurchases of the Company’s common stock in the form of treasury stock. 
The accumulated other comprehensive loss is not included in the calculation of regulatory capital ratios. 

During 1990, the Federal Reserve Board (“FRB”) adopted a minimum leverage ratio of 3% for the most highly 
rated bank holding companies and at least 4% to 5% for all other bank holding companies. The Company’s leverage ratio 
(defined as shareholders’ equity plus eligible trust preferred securities issued and outstanding less goodwill and certain 
other intangibles divided by average quarterly assets) was 14.62% at December 31, 2017 and 13.91% at December 31, 
2016. The core deposit intangibles and goodwill of $282,532,000 as of December 31, 2017, are deducted from the sum of 
core capital elements when determining the capital ratios of the Company. 

The FRB has adopted risk-based capital guidelines which assign risk weightings to assets and off-balance sheet 
items. The guidelines also define and set minimum capital requirements (risk-based capital ratios). Under the final 1992 
rules, all banks are required to have Tier 1 capital of at least 4.0% of risk-weighted assets and total capital of 8.0% of risk-
weighted  assets.  Tier 1  capital  consists  principally  of  shareholders’  equity  plus  trust  preferred  securities  issued  and 
outstanding  less  goodwill  and  certain  other  intangibles,  while  total  capital  consists  of  Tier 1  capital,  certain  debt 
instruments and a portion of the reserve for loan losses. In order to be deemed well-capitalized pursuant to the regulations, 
an institution must have a total risk-weighted capital ratio of 10%, a Tier 1 risk-weighted ratio of 8% and a Tier 1 leverage 
ratio of 5%. The Company had risk-weighted Tier 1 capital ratios of 18.73% and 18.68% and risk weighted total capital 
ratios  of  19.51%  and  19.47%  as  of  December 31,  2017  and  2016,  respectively,  which  are  well  above  the  minimum 
regulatory  requirements  and  exceed  the  well-capitalized  ratios  (see  Note 20  to  Notes  to  Consolidated  Financial 
Statements). 

22 

In July 2013, the Federal Deposit Insurance Corporation (“FDIC”) and other regulatory bodies established a new, 
comprehensive capital framework for U.S. banking organizations, consisting of minimum requirements that increase both 
the quantity and quality of capital held by banking organizations. The final rules are a result of the implementation of the 
BASEL III capital reforms and various Dodd-Frank Act related capital provisions. Consistent with the Basel international 
framework, the rules include a new minimum ratio of Common Equity Tier 1 (“CET1”) to risk-weighted assets of 4.5% 
and a CET1 capital conservation buffer of 2.5% of risk-weighted assets.  The capital conservation buffer began phasing-
in on January 1, 2016 at .625% and increases each year until January 1, 2019, when the Company will be required to have 
a 2.5% capital conservation buffer, effectively resulting in a minimum ratio of CET1 capital to risk-weighted assets of at 
least 7% upon full implementation. The rules also raised the minimum ratio of Tier 1 capital to risk-weighted assets from 
4% to 6% and include a minimum leverage ratio of 4% for all banking organizations. Regarding the quality of capital, the 
new rules emphasize CET1 capital and implements strict eligibility criteria for regulatory capital instruments. The new 
rules also improve the methodology for calculating risk-weighted assets to enhance risk sensitivity. The new rules are 
subject to a four year phase in period for mandatory compliance and the Company was required to begin to phase in the 
new rules beginning on January 1, 2015.  Management believes, as of December 31, 2017, that the Company and each of 
the bank subsidiaries will meet all capital adequacy requirements once the capital conservation is fully phased-in. 

On November 21, 2017, the Office of the Comptroller of the Currency (“OCC”), the FRB and the FDIC finalized 
a proposed rule that extends the current treatment under the regulatory capital rules for certain regulatory capital deductions 
and risk weights and certain minority interest requirements, as they apply to banking organizations that are not subject to 
the advanced approaches capital rules.  Effective January 1, 2018, the rule also pauses the full transition to the Basel III 
treatment of mortgage servicing assets, certain deferred tax assets, investments in the capital of unconsolidated financial 
institutions and minority interests.  The agencies are also considering whether to make adjustments to the capital rules in 
response  to  CECL  (the  FASB  Standard relating  to  current  expected  credit  loss)  and  its  potential  impact  on regulatory 
capital. 

On December 7, 2017, the Basel Committee on Banking Supervision unveiled the latest round of its regulatory 
capital framework, commonly called “Basel IV.”  The framework makes changes to the capital framework first introduced 
as “Basel III” in 2010.  The committee targeted 2022-2027 as the timeframe for implementation by regulators in individual 
countries, including the U.S. federal bank regulatory agencies (after notice and comment). 

Junior Subordinated Deferrable Interest Debentures 

The Company has formed six statutory business trusts under the laws of the State of Delaware, for the purpose 
of issuing trust preferred securities. The statutory business trusts formed by the Company (the “Trusts”) have each issued 
Capital  and  Common  Securities  and  invested  the  proceeds  thereof  in  an  equivalent  amount  of  junior  subordinated 
debentures (the “Debentures”) issued by the Company. As of December 31, 2017 and December 31, 2016, the principal 
amount of debentures outstanding totaled $160,416,000. On July 29, 2015, the Company bought back a portion of the 
Capital Securities of IB Capital Trusts X and XI from the holder of the securities for a price that reflected an approximate 
24.5%  discount  from  the  redemption  prices  of  the  securities.    The  Company  thereby  retired  $13,000,000  of  the  total 
$34,021,000 of related Junior Subordinated Deferrable Interest Debentures related to IB Capital Trust X and $1,000,000 
of the total $27,990,000 of related Junior Subordinated Deferrable Interest Debentures related to IB Capital Trust XI.  On 
November 1, 2016, the Company bought back a portion of the Capital Securities of IB Capital Trust XI from the holder 
of the securities for a price that reflected an approximate 24% discount from the redemption price of the securities.  The 
Company  thereby  retired  $1,000,000  of  the  total  $26,990,000  of  related  Junior  Subordinated  Deferrable  Interest 
Debentures related to IB Capital Trust XI.  The discounts recorded in connection with the repurchases of the outstanding 
Capital Securities are included in other income on the consolidated financial statements. 

The Debentures are subordinated and junior in right of payment to all present and future senior indebtedness (as 
defined in the respective indentures) of the Company, and are pari passu with one another. The interest rate payable on, 
and the payment terms of the Debentures are the same as the distribution rate and payment terms of the respective issues 
of  Capital  and  Common  Securities  issued  by  the  Trusts.  The  Company  has  fully  and  unconditionally  guaranteed  the 
obligations of each of the Trusts with respect to the Capital and Common Securities. The Company has the right, unless 
an Event of Default (as defined in the Indentures) has occurred and is continuing, to defer payment of interest on the 
Debentures for up to twenty consecutive quarterly periods on Trusts VI, VIII, IX, X, XI and XII. If interest payments on 

23 

any of the Debentures are deferred, distributions on both the Capital and Common Securities related to that Debenture 
would also be deferred. The redemption prior to maturity of any of the Debentures may require the prior approval of the 
Federal Reserve and/or other regulatory bodies. 

For financial reporting purposes, the Trusts are treated as investments of the Company and not consolidated in 
the consolidated financial statements. Although the Capital Securities issued by each of the Trusts are not included as a 
component of shareholders’ equity on the consolidated statement of condition, the Capital Securities are treated as capital 
for regulatory purposes. Specifically, under applicable regulatory guidelines, the Capital Securities issued by the Trusts 
qualify as Tier 1 capital up to a maximum of 25% of Tier 1 capital on an aggregate basis. Any amount that exceeds the 
25% threshold would qualify as Tier 2 capital. At December 31, 2017 and December 31, 2016, the total $160,416,000 of 
the Capital Securities outstanding qualified as Tier 1 capital. 

The  following  table  illustrates  key  information  about  each  of  the  Debentures  and  their  interest  rates  at 

December 31, 2017: 

Junior 
  Subordinated 
  Deferrable 

Interest 

  Debentures 
  (in Thousands)  

  Repricing 
  Frequency 

  Interest Rate 

Interest Rate 
Index 

  Maturity Date 

Optional 
  Redemption Date(1)   

Trust VI . . . . . . . . . . . . .    $ 
Trust VIII . . . . . . . . . . . .   
Trust IX . . . . . . . . . . . . .   
Trust X . . . . . . . . . . . . . .   
Trust XI . . . . . . . . . . . . .   
Trust XII  . . . . . . . . . . . .   

  $ 

 25,774    Quarterly    
 25,774    Quarterly    
 41,238    Quarterly    
 21,021    Quarterly    
 25,990    Quarterly    
 20,619    Quarterly    
 160,416  

 4.87 %   LIBOR + 3.45    November 2032   
October 2033   
 4.41 %   LIBOR + 3.05   
October 2036   
 2.96 %   LIBOR + 1.62   
February 2037   
 3.03 %   LIBOR + 1.65   
 2.96 %   LIBOR + 1.62   
July 2037   
 2.93 %   LIBOR + 1.45    September 2037   

February 2008  
October 2008  
October 2011  
February 2012  
July 2012  
September 2012  

(1)  The Capital Securities may be redeemed in whole or in part on any interest payment date after the Optional Redemption Date. 

24 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
 
     
 
     
 
     
 
     
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
Contractual Obligations and Commercial Commitments 

The following table presents contractual cash obligations of the Company (other than deposit liabilities) as of 

December 31, 2017: 

Contractual Cash Obligations 
Securities sold under repurchase agreements  .      $  353,805    $  342,824    $
Federal Home Loan Bank borrowings . . . . . . .        1,195,225     
 945,225     
Junior subordinated deferrable interest 
debentures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       
—     
Operating leases  . . . . . . . . . . . . . . . . . . . . . . . .       
 3,563     
     Total Contractual Cash Obligations . . . . . .     $ 1,722,183   $ 1,291,612   $

 160,416     
 12,737     

Total 

 —    $
 —     

—  
 250,000  

—     
 6,463     
 17,444   $

 160,416  
—     
 2,531     
 180  
 2,531   $  410,596  

Less than 
  One Year 

Three to 
  Five Years 

  After Five 

Years 

Payments due by Period 
(Dollars in Thousands) 
  One to Three 
Years 
 10,981    $
 —     

The following table presents contractual commercial commitments of the Company (other than deposit liabilities) 

as of December 31, 2017: 

Amount of Commitment Expiration Per Period 
(Dollars in Thousands) 
  One to Three 
Years 

  Three to Five 
Years 

Less than 
  One Year 

  After Five 

Years 

Commercial Commitments 
Financial and Performance Standby Letters 
of Credit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $
 72,487    $
 4,145     
Commercial Letters of Credit . . . . . . . . . . . . . . .      
Credit Card Lines  . . . . . . . . . . . . . . . . . . . . . . . .      
 20,643     
Other Commercial Commitments  . . . . . . . . . . .       2,795,136      1,429,380     

—  
—  
—  
 137,591  
Total Commercial Commitments  . . . . . . . . .    $ 2,915,326   $ 1,526,655   $  643,173   $  607,907   $  137,591  

 22,915    $
 —     
—     
 620,258     

 —    $
 —     
—     
 607,907     

 95,402    $
 4,145     
 20,643     

Total 

Due to the nature of the Company’s commercial commitments, including unfunded loan commitments and lines 
of  credit,  the  amounts  presented  above  do not  necessarily  reflect  the  amounts  the  Company  anticipates  funding  in  the 
periods presented above. 

Critical Accounting Policies 

The Company has established various accounting policies which govern the application of accounting principles 
in the preparation of the Company’s consolidated financial statements. The significant accounting policies are described 
in the Notes to the Consolidated Financial Statements. Certain accounting policies involve significant subjective judgments 
and  assumptions  by  management  which  have  a  material  impact  on  the  carrying  value  of  certain  assets  and  liabilities; 
management considers such accounting policies to be critical accounting policies. 

The Company considers its allowance for probable loan losses as a policy critical to the sound operations of the 
bank subsidiaries. The allowance for probable loan losses primarily consists of the aggregate loan loss allowances of the 
bank subsidiaries. The allowances are established through charges to operations in the form of provisions for probable 
loan losses. Loan losses or recoveries are charged or credited directly to the allowances. The allowance for probable loan 
losses of each bank subsidiary is maintained at a level considered appropriate by management, based on estimated probable 
losses in the loan portfolio. The allowance is derived from the following elements: (i) allowances established on specific 
impaired loans, which are based on a review of the individual characteristics of each loan, including the customer’s ability 
to repay the loan, the underlying collateral values, and the industry in which the customer operates, (ii) allowances based 
on actual historical loss experience for similar types of loans in the Company’s loan portfolio, and (iii) allowances based 
on general economic conditions, changes in the mix of loans, company resources, border risk and credit quality indicators, 
among other things. See also discussion regarding the allowance for probable loan losses and provision for probable loan 
losses included in the results of operations and “Provision and Allowance for Probable Loan Losses” included in Notes 1 
and 4 of the Notes to Consolidated Financial Statements. 

25 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
 
 
 
 
  
 
 
 
 
  
The loan loss provision is determined using the following methods. On a weekly basis, loan past due reports are 
reviewed by the credit quality committee to determine if a loan has any potential problems and if a loan should be placed 
on the Company’s internal classified report. Additionally, the Company’s credit department reviews the majority of the 
Company’s loans for proper internal classification purposes regardless of whether they are past due and segregates any 
loans with potential problems for further review. The credit department will discuss the potential problem loans with the 
servicing loan officers to determine any relevant issues that were not discovered in the evaluation. Also, an analysis of 
loans that is provided through examinations by regulatory authorities is considered in the review process. After the above 
analysis is completed, the Company will determine if a loan should be placed on an internal classified report because of 
issues related to the analysis of the credit, credit documents, collateral and/or payment history. 

The  Company’s  internal  classified  report  is  segregated  into  the  following  categories:  (i) “Special  Review 
Credits,” (ii) “Watch List—Pass Credits,” or (iii) “Watch List—Substandard Credits.” The loans placed in the “Special 
Review Credits” category reflect the Company’s opinion that the loans reflect potential weakness which require monitoring 
on a more frequent basis. The “Special Review Credits” are reviewed and discussed on a regular basis with the credit 
department and the lending staff to determine if a change in category is warranted. The loans placed in the “Watch List—
Pass Credits” category reflect the Company’s opinion that the credit contains weaknesses which represent a greater degree 
of risk, which warrant “extra attention.” The “Watch List—Pass Credits” are reviewed and discussed on a regular basis 
with the credit department and the lending staff to determine if a change in category is warranted. The loans placed in the 
“Watch List—Substandard Credits” classification are considered to be potentially inadequately protected by the current 
sound  worth  and  debt  service  capacity  of  the  borrower  or  of  any  pledged  collateral.  These  credit  obligations,  even  if 
apparently  protected  by  collateral  value,  have  shown  defined  weaknesses  related  to  adverse  financial,  managerial, 
economic, market or political conditions which may jeopardize repayment of principal and interest. Furthermore, there is 
the possibility that some future loss could be sustained by the Company if such weaknesses are not corrected. For loans 
that are classified as impaired, management evaluates these credits ASC 310-10, “Receivables,” and, if deemed necessary, 
a specific reserve is allocated to the credit. The specific reserve allocated under ASC 310-10, is based on (i) the present 
value of expected future cash flows discounted at the loan’s effective interest rate; (ii) the loan’s observable market price; 
or (iii) the fair value of the collateral if the loan is collateral dependent. Substantially all of the Company’s loans evaluated 
as impaired under ASC 310-10 are measured using the fair value of collateral method. In limited cases, the Company may 
use other methods to determine the specific reserve of a loan under ASC 310-10 if such loan is not collateral dependent. 

The allowance based on historical loss experience on the Company’s remaining loan portfolio, which includes 
the  “Special  Review  Credits,”  “Watch  List—Pass  Credits,”  and  “Watch  List—Substandard  Credits”  is  determined  by 
segregating the remaining loan portfolio into certain categories such as commercial loans, installment loans, international 
loans,  loan  concentrations  and  overdrafts.  A  historical  loss  percentage,  adjusted  for  (i) management’s  evaluation  of 
changes in lending policies and procedures, (ii) current economic conditions in the market area served by the Company, 
(iii) other risk factors, (iv) the effectiveness of the internal loan review function, (v) changes in loan portfolios, and (vi) the 
composition  and  concentration  of  credit  volume  is  applied  to  each  category.  Each  category  is  then  added  together  to 
determine the allowance allocated under ASC 450-20. 

The Company’s management continually reviews the allowance for loan losses of the bank subsidiaries using the 
amounts determined from the allowances established on specific loans, the allowance established on quantitative historical 
loss  percentages,  and  the  allowance  based  on  qualitative  data,  to  establish  an  appropriate  amount  to  maintain  in  the 
Company’s allowance for loan loss. Should any of the factors considered by management in evaluating the adequacy of 
the allowance for probable loan losses change, the Company’s estimate of probable loan losses could also change, which 
could affect the level of future provisions for probable loan losses. 

Recent Accounting Standards Issued 

See  Note 1—Summary  of  Significant  Accounting  Policies  in  the  accompanying  Notes  to  the  Consolidated 
Financial  Statements  for  details  of  recently  issued  and  recently  adopted  accounting  standards  and  their  impact  on  the 
Company’s consolidated financial statements. 

26 

Preferred Stock, Common Stock and Dividends 

The  Company  had  issued  and  outstanding  66,097,271  shares  of  $1.00  par  value  Common  Stock  held  by 
approximately 1,993 holders of record at February 23, 2018. The book value of the Common Stock at December 31, 2017 
was  $29.28  per  share  compared  with  $27.53  per  share  at  December 31,  2016.  In  connection  with  the  Company’s 
participation in the Troubled Asset Relief Program Capital Purchase Program in 2008, the US Treasury received a warrant 
(the “Warrant”) to purchase 1,326,238 shares of the Company’s common stock (the “Warrant Shares”) at $24.43 per share. 
The term of the Warrant is ten years and was immediately exercisable. The Warrant is included as a component of Tier 1 
capital. On June 12, 2013, the U. S. Treasury sold the Warrant to a third party. As of February 23, 2018, the Warrant is 
still outstanding, but expires on December 23, 2018. Adjustments to the $24.43 per share Exercise Price of the Warrant 
will be made if the Company pays cash dividends in excess of 33 cents per semi-annual period or makes certain other 
shareholder distributions before the Warrant expires on December 23, 2018. 

The Common Stock is traded on the NASDAQ National Market under the symbol “IBOC.” The following table 
sets forth the approximate high and low bid prices in the Company’s Common Stock during 2017 and 2016, as quoted on 
the NASDAQ National Market for each of the quarters in the two year period ended December 31, 2017. Some of the 
quotations reflect inter-dealer prices, without retail mark-up, mark-down or commission and may not necessarily represent 
actual transactions. The closing sales price of the Company’s Common Stock was $40.65 per share at February 23, 2018. 

2017:  . . . . . . . . . . . . . . . . . . . . . . . . . . .       First quarter 

  $ 

   Second quarter 
   Third quarter 
   Fourth quarter 

2016:  . . . . . . . . . . . . . . . . . . . . . . . . . . .       First quarter 

  $ 

   Second quarter 
   Third quarter 
   Fourth quarter 

High 
 41.83   $ 
 38.75  
 41.05  
 42.90  

Low 
 33.40  
 32.50  
 33.85  
 37.55  

High 
 25.79   $ 
 28.44  
 30.44  
 42.25  

Low 
 21.05  
 22.96  
 24.82  
 29.31  

The Company paid cash dividends to the common shareholders of $.33 per share on April 17, 2017 and October 
16, 2017 to all holders of record on April 3, 2017 and September 29, 2017, respectively.  The Company paid dividends to 
the common shareholders of $.29 per share on April 18, 2016 to all holders of record on April 1, 2016.  The Company 
paid  cash  dividends  to  the  common  shareholders  of  $.31  per  share  on  October  17,  2016  to  all  holders  of  record  on 
September 30, 2016.     

The Company’s principal source of funds to pay cash dividends on its Common Stock is cash dividends from its 
bank subsidiaries. For a discussion of the limitations, please see Note 20 of Notes to Consolidated Financial Statements. 

Stock Repurchase Program 

In April 2009, following receipt of the Treasury Department’s consent, the Board of Directors re-established a 
formal stock repurchase program that authorized the repurchase of up to $40 million of common stock within the following 
twelve months and on April 3, 2017, the Board of Directors extended the repurchase program and again authorized the 
repurchase of up to $40 million of common stock during the twelve month period commencing on April 9, 2017, which 
repurchase cap the Board is inclined to increase over time. Stock repurchases may be made from time to time, on the open 
market or through private transactions. Shares repurchased in this program will be held in treasury for reissue for various 
corporate purposes, including employee stock option plans. During the fourth quarter of 2017, the Company’s Board of 
Directors  adopted  a  Rule 10b5-1  plan  and  intends  to  adopt  additional  Rule 10b5-1  trading  plans  that  will  allow  the 
Company to purchase its shares of common stock during certain trading blackout periods when the Company ordinarily 
would not be in the market due to trading restrictions in its internal trading policy. During the term of a 10b5-1 Plan, 
purchases of common stock are automatic to the extent the conditions of the 10b5-1 Plan’s trading instructions are met. 
Shares repurchased in this program will be held in treasury for reissue for various corporate purposes, including employee 

27 

 
 
 
 
 
 
 
 
 
 
 
    
     
    
    
 
 
 
  
  
 
 
  
  
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
    
     
    
    
 
 
 
  
  
 
 
  
  
 
 
  
  
stock option plans. As of February 23, 2018, a total of 9,245,658 shares had been repurchased under all programs at a cost 
of $271,289,000. The Company is not obligated to repurchase shares under its stock repurchase program or to enter into 
additional  Rule 10b5-1  plans.  The  timing,  actual  number  and  value  of  shares  purchased  will  depend  on  many  factors, 
including the Company’s cash flow and the liquidity and price performance of its shares of common stock. 

Except for repurchases in connection with the administration of an employee benefit plan in the ordinary course 
of business and consistent with past practices, common stock repurchases are only conducted under publicly announced 
repurchase programs approved by the Board of Directors. The following table includes information about common stock 
share repurchases for the quarter ended December 31, 2017. 

     Total Number of     
Shares

  Total Number 
of Shares
Purchased 

  Purchased as 

  Approximate

Average 
  Price Paid 
Per 
Share 

Part of a 
Publicly- 
Announced 
Program 

Dollar Value of 
  Shares Available  
for 

  Repurchase(1) 

October 1 – October 31, 2017  . . . . . . . . . . . . . . . . . . . . . . .
November 1 – November 30, 2017  . . . . . . . . . . . . . . . . . . .
December 1 – December 31, 2017 . . . . . . . . . . . . . . . . . . . .
Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

 —   $
 —  
 1,375 
 1,375 

 —  
 —  
 39.85 
$  38.90 

 —   $  39,966,000  
 39,966,000 
 — 
 39,911,000 
 1,375 
 1,375 

(1) The repurchase program was extended on April 3, 2017 and allows for the repurchase of up to an additional $40,000,000 of treasury stock through 

April 9, 2018. 

Equity Compensation Plan Information 

The  following  table  sets  forth  information  as  of  December 31,  2017,  with  respect  to  the  Company’s  equity 

compensation plans: 

Plan Category 
Equity Compensation plans approved by security 
holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(A) 

(B) 

Number of securities to  Weighted average 
exercise price of 
be issued upon exercise 
outstanding options, 
of outstanding options, 
warrants and rights 
warrants and rights 

(C) 
Number of securities    
remaining available for  
future issuance under    
equity compensation    
plans (excluding 
securities reflected in 
column A) 

 668,166 
 668,166 

$ 
$ 

 20.41 
 20.41 

 216,400 ` 
 216,400 

28 

 
 
 
 
 
 
 
  
Stock Performance 

COMPARISON OF CUMULATIVE FIVE YEAR TOTAL RETURN 

COMPARISON  OF  CUMULATIVE  FIVE  YEAR  TOTAL  RETURN

$300

$250

$200

$150

$100

$50

$0

2012

2013

2014

2015

2016

2017

International Bancshares Corporation

S&P MidCap 400 Index

S&P 400 Regional Banks

Total Return To Shareholders 
(Includes reinvestment of dividends) 

Company / Index 
International Bancshares 
Corporation . . . . . . . . . . . . . . . . . . . . . .
S&P 500 Index . . . . . . . . . . . . . . . . . . . .
S&P 500 Banks  . . . . . . . . . . . . . . . . . . .

Base
Period
2012 

2013 

2014 

INDEXED RETURNS 
December 31,  
2015 

2016 

2017 

 100 
 100 
 100 

 148.68 
 133.50 
 145.54 

 152.84 
 146.54 
 147.28 

 151.39 
 143.35 
 156.95 

 245.70 
 173.08 
 208.77 

 243.29 
 201.20 
 219.63 

29 

 
 
 
 
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 

To the Shareholders and the Board of Directors 
of International Bancshares Corporation: 

Opinion on the Financial Statements 

We have audited the accompanying consolidated statements of condition of International Bancshares Corporation 
and its subsidiaries (the Company) as of December 31, 2017 and 2016, the related consolidated statements of income, 
comprehensive income, shareholders' equity and cash flows for each of the three years in the period ended December 31, 
2017, and the related notes to the consolidated financial statements (collectively, the financial statements). In our opinion, 
the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 
2017 and 2016, and the results of its operations and its cash flows for each of the three years in the period ended December 
31, 2017, in conformity with accounting principles generally accepted in the United States of America. 

We  have  also  audited,  in  accordance  with  the  standards of  the  Public Company  Accounting  Oversight  Board 
(United States) (PCAOB),  the  Company's  internal  control over financial  reporting  as  of  December  31,  2017, based on 
criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of 
the  Treadway  Commission  in  2013,  and  our  report  dated  February  28,  2018  expressed  an  unqualified  opinion  on  the 
effectiveness of the Company's internal control over financial reporting. 

Basis for Opinion 

These financial statements are the responsibility of the Company’s management. Our responsibility is to express 
an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with 
the PCAOB and are required to be independent with respect to the Company in accordance with U.S. federal securities 
laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. 

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan 
and  perform  the  audits  to  obtain  reasonable  assurance  about  whether  the  financial  statements  are  free  of  material 
misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material 
misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those 
risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial 
statements.  Our  audits  also  included  evaluating  the  accounting  principles  used  and  significant  estimates  made  by 
management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide 
a reasonable basis for our opinion. 

We have served as the Company's auditor since 2007. 

Dallas, Texas 
February 28, 2018 

30 

 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Consolidated Statements of Condition 

December 31, 2017 and 2016 

(Dollars in Thousands, Except Per Share Amounts) 

December 31,    
2017 

December 31,    
2016 

 265,357   $ 

 269,198  

 2,400  

 2,400  

Assets 
Cash and cash equivalents  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 
Investment securities: 

Held to maturity (Market value of $2,400 on December 31, 2017 and $2,400 on 
December 31, 2016) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Available for sale (Amortized cost of $4,196,263 on December 31, 2017 and 
$4,218,841 on December 31, 2016)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Total investment securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Less allowance for probable loan losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Net loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Bank premises and equipment, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Accrued interest receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Other investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Identified intangible assets, net  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Goodwill  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 4,177,349  
 4,179,749  
 5,964,688  
 (64,661)  
 5,900,027  
 527,583  
 32,172  
 517,162  
 25  
 282,532  
 95,593  
Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  12,184,698   $  11,804,041  

 4,152,070  
 4,154,470  
 6,348,172  
 (67,687) 
 6,280,485  
 514,454  
 34,456  
 571,415  
 —  
 282,532  
 81,529  

See accompanying notes to consolidated financial statements. 

31 

 
 
 
 
 
 
 
 
 
 
 
     
     
  
 
   
 
   
 
 
   
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Consolidated Statements of Condition Continued 

December 31, 2017 and 2016 

(Dollars in Thousands, Except Per Share Amounts) 

December 31,    
2017 

December 31,    
2016 

Liabilities and Shareholders’ Equity 
Liabilities: 
Deposits: 

Demand—non-interest bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $   3,243,255   $   3,158,051  
Savings and interest bearing demand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
 3,203,728  
 2,248,310  
Time  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
 8,610,089  
Total deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
 504,985  
Securities sold under repurchase agreements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
 733,375  
Other borrowed funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
 160,416  
Junior subordinated deferrable interest debentures . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Other liabilities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
 70,509  
   10,079,374  
Total liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 3,245,131  
 2,056,506  
 8,544,892  
 353,805  
 1,195,225  
 160,416  
 91,380  
   10,345,718  

Shareholders’ equity: 

Common shares of $1.00 par value. Authorized 275,000,000 shares; issued 
96,019,028 shares on December 31, 2017 and 95,910,143 shares on 
December 31, 2016  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Surplus  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Retained earnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Accumulated other comprehensive loss (including $0 on December 31, 2017 
and $(3,287) on December 31, 2016 of comprehensive loss related to other-than-
temporary impairment for non-credit related issues) . . . . . . . . . . . . . . . . . . . . . . . . .   

 96,019  
 171,816  
 1,891,805  

 95,910  
 169,567  
 1,777,963  

 (28,397) 
 2,131,243  

 (26,697)  
 2,016,743  

Less cost of shares in treasury, 29,939,545 shares on December 31, 2017 and 
 (292,076)  
29,934,675 on December 31, 2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Total shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
 1,724,667  
Total liabilities and shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  12,184,698   $  11,804,041  

 (292,263) 
 1,838,980  

See accompanying notes to consolidated financial statements. 

32 

 
 
 
 
 
 
 
 
 
 
 
     
     
  
 
   
 
   
 
 
   
 
   
 
 
   
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
   
 
   
 
  
  
  
  
  
  
  
  
 
 
  
  
  
  
  
  
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Consolidated Statements of Income 

Years ended December 31, 2017, 2016 and 2015 

(Dollars in Thousands, Except Per Share Amounts) 

Interest income: 

Loans, including fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Investment securities: 

Taxable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Tax-exempt  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Other interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Total interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

2017 

2016 

2015 

$   322,508   $   297,820   $   297,283 

 82,347  
 9,656  
 625  
 415,136  

 79,533  
 10,356  
 205  
 387,914  

 88,008 
 11,319 
 144 
 396,754 

Interest expense: 

Savings deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Time deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Securities sold under repurchase agreements . . . . . . . . . . . . . . . . . . . . . . . .  
Other borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Junior subordinated deferrable interest debentures . . . . . . . . . . . . . . . . . . .  

 6,208  
 9,736  
 6,617  
 10,978  
 5,392  

 4,562  
 9,963  
 20,876  
 3,128  
 4,600  

 3,593 
 11,233 
 23,777 
 1,615 
 4,099 

Total interest expense  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 38,931  

 43,129  

 44,317 

Net interest income  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 376,205  

 344,785  

 352,437 

Provision for probable loan losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 11,221  

 19,859  

 24,405 

Net interest income after provision for probable loan losses . . . . . . . . . .  

 364,984  

 324,926  

 328,032 

Non-interest income: 

Service charges on deposit accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 72,868  

 73,581  

 78,825 

Other service charges, commissions and fees 

Banking  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Non-banking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Investment securities transactions, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Other investments, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Other income  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 44,964  
 7,345  
 (4,774) 
 18,918  
 11,085  

 46,267  
 7,006  
 (2,626) 
 23,827  
 13,647  

 44,971 
 7,223 
 (3,682)
 16,969 
 11,428 

Total non-interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 150,406  

 161,702  

 155,734 

See accompanying notes to consolidated financial statements. 

33 

 
 
 
 
 
 
 
 
 
 
 
 
     
     
   
 
   
 
   
 
   
 
   
 
   
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
   
 
   
 
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
  
  
  
 
 
 
  
  
  
 
 
 
  
  
  
 
 
 
  
  
  
 
 
 
   
 
   
 
   
  
  
  
   
 
   
 
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
  
  
  
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Consolidated Statements of Income, continued 

Years ended December 31, 2017, 2016 and 2015 

(Dollars in Thousands, Except Per Share Amounts) 

Non-interest expense: 

Employee compensation and benefits . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Occupancy  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Depreciation of bank premises and equipment  . . . . . . . . . . . . . . . . . . .    
Professional fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Deposit insurance assessments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Net expense, other real estate owned  . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Amortization of identified intangible assets . . . . . . . . . . . . . . . . . . . . . .    
Advertising . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Early termination fee—securities sold under repurchase agreements  .    
Software and software maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Impairment charges (Total other-than-temporary impairment 
charges, $0 net of $0, $793 net of $1,147, and $371 net of $1,325 
included in other comprehensive loss) . . . . . . . . . . . . . . . . . . . . . . . . . .    
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

2017 

2016 

2015 

 132,750   $ 
 28,439  
 25,281  
 13,650  
 3,294  
 965  
 25  
 7,854  
 5,765  
 19,189  

 128,661   $ 
 26,583  
 24,738  
 13,672  
 5,777  
 5,688  
 128  
 7,814  
 7,042  
 15,087  

 125,135 
 28,019 
 25,009 
 12,278 
 5,938 
 5,695 
 644 
 7,585 
 3,510 
 11,225 

 —  
 56,536  

 354  
 54,081  

 954 
 50,932 

Total non-interest expense  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 293,748  

 289,625  

 276,924 

Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 221,642  

 197,003  

 206,842 

Provision for income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 64,206  

 63,071  

 70,116 

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

 157,436   $ 

 133,932   $ 

 136,726 

Basic earnings per common share: 

Weighted average number of shares outstanding . . . . . . . . . . . . . . . . . .    
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

   66,046,155  

   65,967,989  

 2.38   $ 

 2.03   $ 

   66,411,193 
 2.06 

Fully diluted earnings per common share: 

Weighted average number of shares outstanding . . . . . . . . . . . . . . . . . .    
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

   66,778,436  

   66,313,490  

 2.36   $ 

 2.02   $ 

   66,636,353 
 2.05 

See accompanying notes to consolidated financial statements. 

34 

 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
       
 
 
 
 
 
   
 
 
    
    
 
   
 
   
 
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
 
  
  
  
 
 
 
 
  
  
  
 
 
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
   
 
   
 
   
 
 
 
 
 
 
 
 
   
 
   
 
   
 
 
   
 
   
 
   
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Consolidated Statements of Comprehensive Income 

Years ended December 31, 2017, 2016, and 2015 

(Dollars in Thousands) 

2017 

2016 

2015 

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  157,436   $  133,932   $  136,726 
Other comprehensive income, net of tax: 

Net unrealized holding losses on securities available for sale arising 
during period (net of tax effects of $(2,586), $(16,585), and $(6,593)) . . . .      
Reclassification adjustment for losses on securities available for sale 
included in net income (net of tax effects of $1,671, $919, and $1,289)  . . .      
Reclassification adjustment for impairment charges on available for 
sale securities included in net income (net of tax effects of $0, $124, 
and $334) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      

 (4,803) 

    (30,801) 

    (12,243)

 3,103  

 1,707  

 2,393 

 —  
 (1,700) 

 230  
    (28,864) 

 620 
 (9,230)

Comprehensive income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  155,736   $  105,068   $  127,496 

See accompanying notes to consolidated financial statements. 

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Consolidated Statements of Shareholders’ Equity 

Years ended December 31, 2017, 2016 and 2015 

(in Thousands, except per share amounts) 

Balance at December 31, 2014 . . .     $ 
Net Income . . . . . . . . . . . . . .    
Dividends: 

Cash ($.58 per share)  . . . . .    

Purchase of treasury (261,079  
shares)  . . . . . . . . . . . . . . . . .    
Exercise of stock options . . . . . . .    
Stock compensation expense 
recognized in earnings . . . . . . . . .    
Other comprehensive (loss), 
net of tax: 

Net change in unrealized 
gains and losses on available 
for sale securities, net of 
reclassification adjustment  .    
Balance at December 31, 2015 . . .    
Net Income . . . . . . . . . . . . . .    
Dividends: 

Cash ($.60 per share)  . . . . .    

Purchase of treasury (349,029  
shares)  . . . . . . . . . . . . . . . . .      

Exercise of stock options . . . . . . .    
Stock compensation expense 
recognized in earnings . . . . . . . . .    
Other comprehensive (loss), 
net of tax: 

Net change in unrealized 
gains and losses on available 
for sale securities, net of 
reclassification adjustments .    
Balance at December 31, 2016 . . .    

Net Income . . . . . . . . . . . . . .      
Dividends: 

Cash ($.66 per share)  . . . . .      

Purchase of treasury (4,870  
shares)  . . . . . . . . . . . . . . . . .      
Exercise of stock options . . . . . . .      
Stock compensation expense 
recognized in earnings . . . . . . . . .      
Other comprehensive income, 
net of tax: 

Net change in unrealized 
gains and losses on available 
for sale securities, net of 
reclassification adjustments .      
Balance at December 31, 2017 . . .      

  Preferred   
Stock 

   Number     
of 
  Shares 

 95,784      
 —   

  Common     
Stock 
 95,784        165,520        1,585,389      
 —   

  Retained 
  Earnings 

  Surplus 

 136,726   

 —   

Other 

  Comprehensive    Treasury     
  Income (Loss) 

Stock 

Total 

 —    
 —    

 —    

 —    
 —    

 —    

 —   

 (38,515) 

 —   

 —   
 82   

 —   

 —   

 —   
 82   

 —   
 1,288   

 —   

 1,172   

 —   
 —   

 —   

 11,397        (277,432)  $   1,580,658   
 136,726   
 —   

 —   

 —   

 —   
 —   

 —   

 —   

 (38,515) 

 (6,678) 
 —   

 (6,678) 
 1,370   

 —   

 1,172   

 —   
 (9,230) 
 2,167        (284,110) 
 —   

 —   

 (9,230) 
    1,665,503   
 133,932   

 —    
 —    
 —   

 —   
 95,866      
 —   

 —   

 —   
 95,866        167,980        1,683,600      
 —   

 133,932   

 —   

 —   

 —   

 —   
 —   

 —   

 —   

 —   

 —   

 (39,569) 

 —   

 —   

 (39,569) 

 —     
 44   

 —     
 44   

 —     
 505   

 —   

 —   

 1,082   

 —     
 —   

 —   

 —     
 —   

 (7,966)   
 —   

 (7,966) 
 549   

 —   

 —   

 1,082   

 —   
 —    
 —   

 —   
 95,910    $ 

 —     

 —   

 —   
 95,910    $   169,567    $  1,777,963    $ 
 —     

 157,436     

 —     

 —   

 (28,864) 
 (28,864) 
 (26,697)  $  (292,076)  $   1,724,667   
 157,436   

 —     

 —     

 —   

 —   

 —   
 —   

 —   

 —     

 —     

 —     

 (43,594)   

 —     

 —     

 (43,594) 

 —     
 109     

 —     
 109     

 —     
 1,346     

 —     

 —     

 903     

 —     
 —     

 —     

 —     
 —     

 (187)   
 —     

 (187) 
 1,455   

 —     

 —     

 903   

 —   
 —   

 —     

 96,019    $ 

 —     

 —     
 96,019    $   171,816    $  1,891,805    $ 

 —     

 (1,700)   

 (1,700) 
 (28,397)  $  (292,263)  $   1,838,980   

 —     

See accompanying notes to consolidated financial statements. 

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Consolidated Statements of Cash Flows 

Years ended December 31, 2017, 2016 and 2015 

(Dollars in Thousands) 

Operating activities: 

2017 

2016 

2015 

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 $ 

 157,436   $ 

 133,932   $   136,726 

Adjustments to reconcile net income to net cash provided by 
operating activities: 

Provision for probable loan losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Specific reserve, other real estate owned . . . . . . . . . . . . . . . . . . . . . . . . .   
Depreciation of bank premises and equipment . . . . . . . . . . . . . . . . . . . .   
(Gain) loss on sale of bank premises and equipment  . . . . . . . . . . . . . . .   
(Gain) loss on sale of other real estate owned . . . . . . . . . . . . . . . . . . . . .   
Accretion of investment securities discounts . . . . . . . . . . . . . . . . . . . . . .   
Amortization of investment securities premiums  . . . . . . . . . . . . . . . . . .   
Investment securities transactions, net . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Impairment charges on available for sale securities . . . . . . . . . . . . . . . .   
Amortization of identified intangible assets  . . . . . . . . . . . . . . . . . . . . . .   
Stock based compensation expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Earnings from affiliates and other investments . . . . . . . . . . . . . . . . . . . .   
Deferred tax expense  (benefit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Increase in accrued interest receivable . . . . . . . . . . . . . . . . . . . . . . . . . . .   
(Increase) decrease in other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Net increase (decrease)in other liabilities  . . . . . . . . . . . . . . . . . . . . . . . .   

 11,221  
 710  
 25,281  
 (38) 
 (703) 
 (393) 
 24,040  
 4,774  
 —  
 25  
 903  
 (13,198) 
 4,570  
 (2,284) 
 (16,117) 
 592  

 19,859  
 2,351  
 24,738  
 (450) 
 86  
 (539) 
 26,873  
 2,626  
 354  
 128  
 1,082  
 (14,315) 
 7,306  
 (600) 
 7,494  
 (7,705) 

 24,405 
 1,023 
 25,009 
 14 
 (57)
 (1,704)
 28,000 
 3,682 
 954 
 644 
 1,172 
 (12,176)
 (332)
 (111)
 2,967 
 (6,567)

Net cash provided by operating activities . . . . . . . . . . . . . . . . . . . . . . .   

 196,819  

 203,220  

    203,649 

Investing activities: 

Proceeds from maturities of securities . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Proceeds from sales and calls of available for sale securities . . . . . . . . .   
Purchases of available for sale securities . . . . . . . . . . . . . . . . . . . . . . . . .   
Principal collected on mortgage backed securities . . . . . . . . . . . . . . . . .   
Net increase in loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Purchases of other investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Distributions from other investments . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Purchases of bank premises and equipment . . . . . . . . . . . . . . . . . . . . . . .   
Proceeds from sales of bank premises and equipment  . . . . . . . . . . . . . .   
Proceeds from sales of other real estate owned . . . . . . . . . . . . . . . . . . . .   

 —  
 396,066  
    (1,182,006) 
 780,097  
 (394,267) 
 (26,193) 
 20,344  
 (14,315) 
 2,201  
 14,266  

 1,200  
 352,743  
   (1,325,657) 
 919,594  
 (38,523) 
 (49,013) 
 23,276  
 (38,856) 
 3,701  
 13,772  

 1,075 
    164,163 
   (352,513)
    854,736 
   (297,689)
 (16,355)
 18,293 
 (19,831)
 4,515 
 16,831 

Net cash (used in) provided by investing activities  . . . . . . . . . . . . . . .   

 (403,807) 

 (137,763) 

    373,225 

See accompanying notes to consolidated financial statements. 

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Consolidated Statements of Cash Flows (Continued) 

Years ended December 31, 2017, 2016 and 2015 

(Dollars in Thousands) 

Financing activities: 

2017 

2016 

2015 

Net increase in non-interest bearing demand deposits . . . . . . . . . . . . . . . . . .   
Net increase (decrease) in savings and interest bearing demand deposits . .   
Net decrease in time deposits  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Net decrease in securities sold under repurchase agreements . . . . . . . . . . . .   
Net increase (decrease) in other borrowed funds   . . . . . . . . . . . . . . . . . . . . .   
Redemption of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Purchase of treasury stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Proceeds from stock transactions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Payments of cash dividends - common . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

  $ 

 85,204   $ 
 41,403  
     (191,804) 
     (151,180) 
      461,850  
 —  
 (187) 
 1,455  
 (43,594) 

 8,433   $   219,365 
 (5,458)
   (116,279)
 (30,578)
   (568,194)
 (14,000)
 (6,678)
 1,370 
 (38,515)

    183,506  
   (118,103) 
   (322,787) 
    227,625  
 (1,000) 
 (7,966) 
 549  
 (39,569) 

Net cash provided by (used in) financing activities  . . . . . . . . . . . . . . . . . .   

      203,147  

 (69,312) 

   (558,967)

(Decrease ) increase in cash and cash equivalents  . . . . . . . . . . . . . . . . . . . . . . .   

 (3,841) 

 (3,855) 

 17,907 

Cash and cash equivalents at beginning of period  . . . . . . . . . . . . . . . . . . . . . . .   

      269,198  

    273,053  

    255,146 

Cash and cash equivalents at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

  $   265,357   $   269,198   $   273,053 

Supplemental cash flow information: 

Interest paid  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Income taxes paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

  $ 

 38,995   $ 
 66,983  

 44,069   $ 
 49,925  

 44,560 
 65,234 

Non-cash investing and financing activities: 

Net transfers from loans to other real estate owned . . . . . . . . . . . . . . . . . . . .   

 2,588  

 2,563  

 3,775 

See accompanying notes to consolidated financial statements. 

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements 

(1) Summary of Significant Accounting Policies 

The accounting and reporting policies of International Bancshares Corporation (“Corporation”) and Subsidiaries 
(the Corporation and Subsidiaries collectively referred to herein as the “Company”) conform to U.S. generally accepted 
accounting principles (“GAAP”) and to general practices within the banking industry. The following is a description of 
the more significant of those policies. 

Consolidation and Basis of Presentation 

The  consolidated  financial  statements  include  the  accounts  of  the  Corporation  and  its  wholly-owned  bank 
subsidiaries,  International  Bank  of  Commerce,  Laredo  (“IBC”),  International  Bank  of  Commerce,  Oklahoma  City, 
Commerce  Bank,  International  Bank  of  Commerce,  Zapata,  International  Bank  of  Commerce,  Brownsville,  and  the 
Corporation's wholly-owned non-bank subsidiaries, IBC Subsidiary Corporation, IBC Life Insurance Company (which 
was  terminated  in  September  2016),  IBC  Trading  Company,  Premier  Tierra  Holdings,  Inc.,  IBC  Charitable  and 
Community  Development  Corporation,  and  IBC  Capital  Corporation.    All  significant  inter-company  balances  and 
transactions have been eliminated in consolidation. 

The Company, through its subsidiaries, is primarily engaged in the business of banking, including the acceptance 
of checking and savings deposits and the making of commercial, real estate, personal, home improvement, automobile and 
other installment and term loans. The primary markets of the Company are South, Central, and Southeast Texas and the 
state of Oklahoma. Each bank subsidiary is very active in facilitating international trade along the United States border 
with Mexico and elsewhere. Although the Company’s loan portfolio is diversified, the ability of the Company’s debtors 
to honor their contracts is primarily dependent upon the economic conditions in the Company’s trade area. In addition, the 
investment portfolio is directly impacted by fluctuations in market interest rates. The Company and its bank subsidiaries 
are subject to the regulations of certain federal agencies as well as the Texas Department of Banking and the Oklahoma 
Department of Banking, and undergo periodic examinations by those regulatory authorities. Such agencies may require 
certain standards or impose certain limitations based on their judgments or changes in law and regulations. 

The Company owns one insurance-related subsidiary, IBC Insurance Agency, Inc., a wholly owned subsidiary of 

IBC, the bank subsidiary. The insurance-related subsidiary does not conduct underwriting activities.  

The  preparation  of  the  consolidated  financial  statements  in  conformity  with  accounting  principles  generally 
accepted in the United States of America requires management to make estimates and assumptions that affect the reported 
amounts of assets and liabilities as of the dates of the statement of condition and income and expenses for the periods. 
Actual  results  could  differ  significantly  from  those  estimates.  Material  estimates  that  are  particularly  susceptible  to 
significant changes in the near-term relate to the determination of the allowance for probable loan losses. 

Subsequent Events 

The Company has evaluated all events or transactions that occurred through the date the Company issued these 
financial  statements.  During  this  period,  the  Company  did  not  have  any  material  recognizable  or  non-recognizable 
subsequent events. 

Investment Securities 

The  Company  classifies  debt  and  equity  securities  into  one  of  these  categories:  held-to-maturity,  
available-for-sale,  or  trading.  Such  classifications  are  reassessed  for  appropriate  classification  at  each  reporting  date. 
Securities that are intended and expected to be held until maturity are classified as “held-to-maturity” and are carried at 
amortized cost for financial statement reporting. Securities that are not positively expected to be held until maturity, but 
are intended to be held for an indefinite period of time are classified as “available-for-sale” or “trading” and are carried at 

39 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

their fair value. Unrealized holding gains and losses are included in net income for those securities classified as “trading”, 
while unrealized holding gains and losses related to those securities classified as “available-for-sale” are excluded from 
net  income  and  reported  net  of  tax  as  other  comprehensive  income  and  in  shareholders’  equity  as  accumulated  other 
comprehensive income (loss) until realized. The Company did not maintain any trading securities during the three year 
period ended December 31, 2017. 

Mortgage-backed  securities  held  at  December 31,  2017  and  2016  represent  participating  interests  in  pools  of 
long-term first mortgage loans originated and serviced by  the issuers of the securities. Mortgage-backed securities are 
either issued or guaranteed by the U.S. government or its agencies including the Federal Home Loan Mortgage Corporation 
(“Freddie  Mac”),  the  Federal  National  Mortgage  Association  (“Fannie  Mae”),  the  Government  National  Mortgage 
Association  (“Ginnie  Mae”)  or  other  non-government  entities.  Investments  in  residential  mortgage-backed  securities 
issued by Ginnie Mae are fully guaranteed by the U. S. government. Investments in residential mortgage-backed securities 
issued by Freddie Mac and Fannie Mae are not fully guaranteed by the U.S. government; however, the Company believes 
that the quality of the bonds is similar to other AAA rated bonds with limited credit risk, particularly given the placement 
of Fannie Mae and Freddie Mac into conservatorship by the federal government in 2008 and because securities issued by 
others that are collateralized by residential mortgage-backed securities issued by Fannie Mae or Freddie Mac are rated 
consistently as AAA rated securities. Market interest rate fluctuations can affect the prepayment speed of principal and the 
yield on the security. 

Premiums and discounts are amortized using the level yield or “interest method” over the terms of the securities. 
Declines in the fair value of held-to-maturity and available-for sale-securities below their cost that are deemed to be other 
than  temporary  are  reflected  in  earnings  as  realized  losses.  In  determining  whether  other-than-temporary  impairment 
exists, management considers many factors, including (i) the length of time and the extent to which the fair value has been 
less than cost, (ii) the financial condition and near-term prospects of the issuer, and (iii) the intent of the Company to hold 
and the determination of whether the Company will more likely than not be required to sell the security prior to a recovery 
in fair value. If the Company determines that (i) it intends to sell the security or (ii) it is more likely than not that it will be 
required to sell the security before it’s anticipated recovery, the other-than-temporary impairment that is recognized in 
earnings is equal to the difference between the fair value of the security and the Company’s amortized cost of the security. 
If the Company determines that it (i) does not intend to sell the security and (ii) it will not be more likely than not required 
to  sell  the  security  before  it’s  anticipated  recovery,  the  other-than-temporary  impairment  is  segregated  into  its  two 
components (i) the amount of impairment related to credit loss and (ii) the amount of impairment related to other factors. 
The difference between the present value of the cash flows expected to be collected and the amortized cost is the credit 
loss recognized through earnings and an adjustment to the cost basis of the security. The amount of impairment related to 
other factors is included in other comprehensive income (loss). Gains and losses on the sale of securities are recorded on 
the trade date and are determined using the specific identification method. 

Provision and Allowance for Probable Loan Losses 

The allowance for probable loan losses is maintained at a level considered adequate by management to provide 
for  probable  loan  losses.  The  allowance  is  increased  by  provisions  charged  to  operating  expense  and  reduced  by  net  
charge-offs. The provision for probable loan losses is the amount, which, in the judgment of management, is necessary to 
establish the allowance for probable loan losses at a level that is adequate to absorb known and inherent risks in the loan 
portfolio. 

Management believes that the allowance for probable loan losses is adequate. While management uses available 
information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic 
conditions. In addition, various regulatory agencies, as an integral part of their examination process, periodically review 
the Company’s bank subsidiaries’ allowances for probable loan losses. Such agencies may require the Company’s bank 
subsidiaries to make additions or reductions to their GAAP allowances based on their judgments of information available 
to them at the time of their examination. 

40 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The bank subsidiaries charge off that portion of any loan which management considers to represent a loss as well 
as that portion of any other loan which is classified as a “loss” by bank examiners. Commercial, financial and agricultural 
or real estate loans are generally considered by management to represent a loss, in whole or part, (i) when an exposure 
beyond  any  collateral  coverage  is  apparent,  (ii) when  no  further  collection  of  the  portion  of  the  loan  so  exposed  is 
anticipated  based  on  actual  results,  (iii) when  the  credit  enhancements,  if  any,  are  not  adequate,  and  (iv) when  the 
borrower’s financial condition would indicate so. Generally, unsecured consumer loans are charged off when 90 days past 
due. 

Loans 

Loans are reported at the principal balance outstanding, net of unearned discounts. Interest income on loans is 
reported on an accrual basis. Loan fees and costs associated with originating the loans are accreted or amortized over the 
life of the loan using the interest method. The Company originates mortgage loans that may subsequently be sold to an 
unaffiliated third party. The loans are not securitized and if sold, are sold without recourse. Loans held for sale are carried 
at cost and the principal amount outstanding is not significant to the consolidated financial statements. 

Impaired Loans 

Impaired loans are those loans where it is probable that all amounts due according to contractual terms of the loan 
agreement will not be collected. Impaired loans are measured based on (1) the present value of expected future cash flows 
discounted at the loan’s effective interest rate; (2) the loan’s observable market price; or (3) the fair value of the collateral 
if the loan is collateral dependent. Substantially all of the Company’s impaired loans are measured at the fair value of the 
collateral. In limited cases, the Company may use other methods to determine the level of impairment of a loan if such 
loan is not collateral dependent. 

Troubled Debt Restructured Loans 

Troubled debt restructured loans (“TDR”) are those loans where, for reasons related to a borrower’s difficulty to 
repay a loan, the company grants a concession to the borrower that the company would not normally consider in the normal 
course of business. The original terms of the loan are modified or restructured. The terms that may be modified include a 
reduction in the original stated interest rate, an extension of the original maturity of the loan, a renewal of the loan at an 
interest rate below current market rates, a reduction in the principal amount of debt outstanding, a reduction in accrued 
interest or deferral of interest payments. A loan classified as a TDR is classified as an impaired loan and included in the 
impaired loan totals. A TDR loan may be returned to accrual status when the loan is brought current, has performed in 
accordance  with  the  restructured  terms  for  a  reasonable  period  of  time,  is  at  the  current  market  rate,  and  the  ultimate 
collectability of the outstanding principal and interest is no longer questionable, however, although those loans may be 
placed back on accrual status, they will continue to be classified as impaired. Consistent with regulatory guidance, a TDR 
loan that is subsequently modified, but has shown sustained performance and classification as a TDR, will be removed 
from TDR status provided that the modified terms were market-based at the time of modification. 

Non-Accrual Loans 

The non-accrual loan policy of the Company’s bank subsidiaries is to discontinue the accrual of interest on loans 
when  management  determines  that  it  is  probable  that  future  interest  accruals  will  be  un-collectible.  As  it  relates  to 
consumer  loans,  management  charges  off  those  loans  when  the  loan  is  contractually  90 days  past  due.  Under  special 
circumstances, a consumer or non-consumer loan may be more than 90 days delinquent as to interest or principal and not 
be placed on non-accrual status. This situation generally results when a bank subsidiary has a borrower who is experiencing 
financial difficulties, but not to the extent that requires a restructuring of indebtedness. The majority of this category is 
composed  of  loans  that  are  considered  to be  adequately  secured  and/or for which  there  are  expected  future payments. 
When a loan is placed on non-accrual status, any interest accrued, not paid is reversed and charged to operations against 

41 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

interest income. As it relates to non-consumer loans that are not 90 days past due, management will evaluate each of these 
loans to determine if placing the loan on non-accrual status is warranted. Interest income on non-accrual loans is recognized 
only to the extent payments are received or when, in management’s opinion, the debtor’s financial condition warrants 
reestablishment of interest accruals. 

Other Real Estate Owned 

Other real estate owned is comprised of real estate acquired by foreclosure and deeds in lieu of foreclosure. Other 
real estate is carried at the lower of the recorded investment in the property or its fair value less estimated costs to sell such 
property (as determined by independent appraisal). Prior to foreclosure, the value of the underlying loan is written down 
to the fair value of the real estate to be acquired by a charge to the allowance for probable loan losses, if necessary. Any 
subsequent write-downs are charged against other non-interest expense through a valuation allowance. Other real estate 
owned totaled approximately $30,519,000 and $42,204,000 at December 31, 2017 and 2016, respectively. Other real estate 
owned is included in other assets. 

Bank Premises and Equipment 

Bank  premises  and  equipment  are  stated  at  cost  less  accumulated  depreciation.  Depreciation  is  computed  on 
straight-line and accelerated methods over the estimated useful lives of the assets. Repairs and maintenance are charged 
to operations as incurred and expenditures for renewals and betterments are capitalized. 

Other Investments 

Other investments include equity investments in non-financial companies, bank owned life insurance, as well as 
equity securities with no readily determinable fair market value. Equity investments are accounted for using the equity 
method of accounting. Equity securities with no readily determinable fair value are accounted for using the cost method. 

Income Taxes 

Deferred income tax assets and liabilities are determined using the asset and liability method. Under this method, 
the net deferred tax asset or liability is determined based on the tax effects of the differences between the book and tax 
basis of the various balance sheet assets and liabilities and gives current recognition to changes in tax rates and laws. The 
Company files a consolidated federal income tax return with its subsidiaries. 

Recognition  of  deferred  tax  assets  is  based  on  management’s  assessment  that  the  benefit  related  to  certain 
temporary differences, tax operating loss carry forwards, and tax credits are more likely than not to be realized. A valuation 
allowance is recorded for the amount of the deferred tax items for which it is more likely than not that the tax benefits will 
not be realized. 

The Company evaluates uncertain tax positions at the end of each reporting period. The Company may recognize 
the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on 
examination  by  the  taxing  authorities, based on  the  technical  merits  of  the position.  The  tax benefit  recognized  in  the 
financial statements from any such a position is measured based on the largest benefit that has a greater than fifty percent 
likelihood of being realized upon ultimate settlement. As of December 31, 2017 and 2016, respectively, after evaluating 
all uncertain tax positions, the Company has recorded no liability for unrecognized tax benefits at the end of the reporting 
period. The Company would recognize any interest accrued on unrecognized tax benefits as other interest expense and 
penalties  as  other  non-interest  expense.  During  the  years  ended  December  31,  2017,  2016  and  2015,  the  Company 
recognized no interest expense or penalties related to uncertain tax positions. 

42 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The Company files consolidated tax returns in the U.S. Federal jurisdiction and various state jurisdictions. The 

Company is no longer subject to U.S. federal or state income tax examinations by tax authorities for years before 2014. 

Stock Options 

Compensation expense for stock awards is based on the market price of the stock on the measurement date, which 
is generally the date of grant, and is recognized ratably over the service period of the award. The fair value of stock options 
granted  was  estimated  using  the  Black-Sholes-Merton  option-pricing  model.  This  model  was  developed  for  use  in 
estimating the fair value of publicly traded options that have no vesting restrictions and are fully transferable. Additionally, 
the  model  requires  the  input  of  highly  subjective  assumptions.  Because  the  Company’s  employee  stock  options  have 
characteristics significantly different from those of publicly traded options, and because changes in the subjective input 
assumptions can materially affect the fair value estimate, in management’s opinion, the Black-Scholes-Merton option-
pricing model does not necessarily provide a reliable single measure of the fair value of the Company’s stock options. 

Net Income Per Share 

Basic  Earnings  Per  Share  (“EPS”)  is  calculated  by  dividing  net  income  by  the  weighted  average  number  of 
common  shares  outstanding.  The  computation  of  diluted  EPS  assumes  the  issuance  of  common  shares  for  all  dilutive 
potential common shares outstanding during the reporting period. The dilutive effect of stock options is considered in 
earnings per share calculations, if dilutive, using the treasury stock method. 

Goodwill and Identified Intangible Assets 

Goodwill represents the excess of costs over fair value of assets of businesses acquired. Goodwill is tested for 
impairment at least annually or on an interim basis if an event triggering impairment may have occurred. As of October 1, 
2017, after completing goodwill testing, the Company has determined that no goodwill impairment exists. 

Identified intangible assets are acquired assets that lack physical substance but can be distinguished from goodwill 
because of contractual or other legal rights or because the asset is capable of being sold or exchanged either on its own or 
in combination with a related contract, asset, or liability. The Company’s identified intangible assets relate to core deposits 
and contract rights. As of December 31, 2017, the Company has determined that no impairment of identified intangibles 
exists. Identified intangible assets with definite useful lives are amortized on an accelerated basis over their estimated life. 
See Note 6—Goodwill and Other Intangible Assets. 

Impairment of Long-Lived Assets 

Long-lived assets, such as property, plant and equipment, and purchased intangibles subject to amortization, are 
reviewed for impairment whenever events or changes in circumstances indicate that the carrying value of an asset may not 
be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying value of the asset 
to the estimated undiscounted future cash flows expected to be generated by the asset. If the carrying value of an asset 
exceeds its estimated future cash flows, an impairment charge is recognized by the amount by which the carrying value of 
the asset exceeds the fair value of the asset. Assets to be disposed of would be separately presented in the statement of 
condition and reported at the lower of the carrying value or fair value less costs to sell, and are no longer depreciated. The 
assets and liabilities of a disposed group classified as held for sale would be presented separately in the appropriate asset 
and liability sections of the statement of condition. 

43 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

Consolidated Statements of Cash Flows 

For purposes of the consolidated statements of cash flows, the Company considers all short-term investments 
with a maturity at date of purchase of three months or less to be cash equivalents. Also, the Company reports transactions 
related to deposits and loans to customers on a net basis. 

Accounting for Transfers and Servicing of Financial Assets 

The Company accounts for transfers and servicing of financial assets and extinguishments of liabilities based on 
the  application  of  a  financial-components  approach  that  focuses  on  control.  After  a  transfer  of  financial  assets,  the 
Company recognizes the financial and servicing assets it controls and liabilities it has incurred, derecognizes financial 
assets  when  control  has  been  surrendered  and  derecognizes  liabilities  when  extinguished.  The  Company  has  retained 
mortgage servicing rights in connection with the sale of mortgage loans. Because the Company may not initially identify 
loans as originated for resale, all loans are initially treated as held for investment. The value of the mortgage servicing 
rights are reviewed periodically for impairment and are amortized in proportion to, and over the period of estimated net 
servicing income or net servicing losses. The value of the mortgage servicing rights is not significant to the consolidated 
statements of condition. 

Segments of an Enterprise and Related Information 

The Company operates as one segment. The operating information used by the Company’s chief executive officer 
for purposes of assessing performance and making operating decisions about the Company is the consolidated financial 
statements presented in this report. The Company has five active operating subsidiaries, namely, the bank subsidiaries, 
otherwise  known  as  International  Bank  of  Commerce,  Laredo,  International  Bank  of  Commerce,  Oklahoma  City, 
Commerce  Bank,  International  Bank  of  Commerce,  Zapata  and  International  Bank  of  Commerce,  Brownsville.  The 
Company applies the provisions of ASC Topic 280, “Segment Reporting,” in determining its reportable segments and 
related disclosures. 

Comprehensive Income (Loss) 

Comprehensive  income  (loss)  consists  of  net  income  and  other  comprehensive  income  (loss).  Other 

comprehensive income (loss) includes unrealized gains and losses on securities available for sale. 

Advertising 

Advertising costs are expensed as incurred. 

Reclassifications 

Certain amounts in the prior year’s presentations have been reclassified to conform to the current presentation. 

These reclassifications had no effect on previously reported net income or shareholders’ equity. 

New Accounting Standards 

In May 2014, the FASB issued Accounting Standards Update No. 2014-09 to ASC 606, “Revenue from Contracts 
with Customers.”  The update sets a common standard that defines revenue and the principles for recognizing revenue.  
The update outlines when an entity should recognize revenue, among other matters.  At its core, the update states that an 
entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects 
the consideration to which the entity expects to be entitled to in exchange for those goods or services.  The update also 

44 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

outlines the steps that entities should take to determine and record the current revenue number including:  (i) identify the 
contract(s) with a customer, (ii) identify the performance obligations in the contract(s), (iii) determine the transaction price, 
(iv) allocate the transaction price to the performance obligations in the contract(s), and (v) recognize revenue when (or as) 
the entity satisfies the identified performance obligations in the contract(s).  The update was originally effective for annual 
periods beginning after December 31, 2016  and the interim periods within that reporting period.  In August 2015, the 
FASB issued Accounting Standards Update No. 2015-14 which deferred the effective date of ASU 2014-09 by one year 
to annual and interim periods beginning after December 15, 2017.  The Company’s revenue is primarily comprised of net 
interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of the update.  The 
Company has evaluated the impact of the update to certain other non-interest revenue streams, including, service charges, 
insurance agency commissions and sales of other real estate, among others and has determined that the adoption of the 
update will not have a significant impact on the Company’s consolidated financial statements. 

In  January  2016,  the  FASB  issued  Accounting  Standards  Update  No.  2016-01  to  ASC  825-10,  “Financial 
Instruments – Overall.”  The update amends existing standards regarding certain aspects of recognition and measurement 
of financial assets and financial liabilities.  The amendments in the update establish the following guidance:  (i) requires 
equity investments, except those accounted for under the equity method of accounting or those that result in consolidation 
of  the  investee,  to  be  measured  at  fair  value  with  changes  in  fair  value  recognized  in  net  income,  (ii)  simplifies  the 
impairment assessment of equity securities without readily determinable fair values by requiring a qualitative assessment, 
(iii) eliminates the requirement to disclose the fair value of financial instruments measured at amortized cost for entities 
that are not public business entities, (iv) eliminates the requirement for public business entities to disclose the methods 
and significant assumptions used to estimate fair value that is required to be disclosed for financial instruments measured 
at amortized cost on the balance sheet, (v) requires public business entities to use the exit price notion when measuring 
fair value for disclosure purposes, (vi) requires an entity to present separately, in other comprehensive income, the portion 
of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the 
entity has elected to measure the liability at fair value in accordance with the fair value option, (vii) requires separate 
presentation of financial assets and liabilities  by measurement category and form of financial assets on the balance sheet 
or in the accompanying notes to the financial statements, and (viii) clarifies that an entity should evaluate the need to a 
valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other 
deferred  tax  assets.    The  update  is  effective  for  interim  and  annual  periods  beginning  after  December  15,  2017.    The 
adoption of the update is will not have a significant impact to the Company’s consolidated financial statements.     

In  February  2016,  the  FASB  issued  Accounting  Standards  Update  No.  2016-02  to  ASC  820,  “Leases.”    The 
update amends existing standards for accounting for leases by lessees, with accounting for leases by lessors remaining 
mainly unchanged from current guidance.  The update requires that lessees recognize a lease liability and a right of use 
asset  for  all  leases  (with  the  exception  of  short-term  leases)  at  the  commencement  date  of  the  lease  and  disclose  key 
information about leasing arrangements.  The update is to be applied on a modified retrospective basis for leases existing 
at, or entered into after, the beginning of the earliest comparative period presented in the consolidated financial statements.  
The update is effective for interim and annual periods beginning after December 15, 2018.  In January 2018, the FASB 
issued a proposal that provides an additional transition method that would allow entities to not apply the guidance in the 
update in the comparative periods presented in the consolidated financial statements, but instead recognize a cumulative-
effect adjustment to the opening balance of retained earnings in the period of adoption.  The Company is evaluating the 
potential impact to the Company’s consolidated financial statements.   

In March 2016, the FASB issued Accounting Standards Update No. 2016-09 to ASC 718, “Compensation – Stock 
Compensation.”  The update amends existing standards for accounting for share-based payment transactions, including 
the income tax effects, the classification of awards on the balance sheet and the classification on the statement of cash 
flows.    The update is effective for annual and interim periods after December 15, 2016. The adoption of the update did 
not have a significant impact to the Company’s consolidated financial statements. 

45 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

In June 2016, the FASB issued Accounting Standards Update No. 2016-13 to ASC 326, “Financial Instruments 
– Credit Losses.”  The update amends existing standards for accounting for credit losses for financial assets.  The update 
requires that the expected credit losses on the financial instruments held as of the end of the period being reported be 
measured based on historical experience, current conditions, and reasonable and supportable forecasts.  The update also 
expands the required disclosures related to significant estimates and judgements used in estimating credit losses, as well 
as  the  credit  quality  and  underwriting  standards  of  an  organization’s  financial  assets.    The  update  also  amends  the 
accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration 
and  effective  for  interim  and  annual  periods  beginning  after  December  15,  2019.    The  change  in  accounting  method 
represents a significant difference to current accounting practice over the accounting for credit losses on financial assets.  
The Company has formed a task force including key members of the teams that work with the current calculation of the 
allowance for probable loan losses and members representing the corporate accounting and risk management areas.  The 
task force will be working with a plan to develop and implement the changes to current practice with support from third-
party vendors.  The Company cannot estimate at this time the impact of ASC 326.     

In  January  2017,  the  FASB  issued  Accounting  Standards  Update  No.  2017-04  to  ASC  350,    “Intangibles  – 
Goodwill and Other.”  The update amends existing guidance in evaluating goodwill for impairment.  The update requires 
that an entity perform its annual or interim goodwill test by comparing the fair value of a reporting unit with its carrying 
amount, with any impairment charges being recognized as the difference between the fair value and carrying value.  The 
update is intended to standardize the impairment test for all business entities and also reduce the complexity and cost of 
evaluating goodwill for impairment.  The update is effective for any annual or interim goodwill impairment tests in fiscal 
years beginning after December 15, 2019.  The adoption of the update is not expected to have a significant impact to the 
Company’s consolidated financial statements. 

In  March  2017,  the  FASB  issued  Accounting  Standards  Update  No.  2017-08  to  ASC  310,  “Receivables  – 
Nonrefundable  Fees  and  Other  Costs.”    The  update  amends  existing  guidance  on  the  amortization  period  for  certain 
callable debt securities held at a premium.  The update shortens the amortization period of the premium to the earliest call 
date.  The update is effective for fiscal years beginning after December 15, 2018.  The update is to be applied on a modified 
retrospective  basis  through  a  cumulative-effect  adjustment  to  retained  earnings  as  of  the  beginning  of  the  period  of 
adoption.  The adoption of the update is not expected to have a significant impact to the Company’s consolidated financial 
statements. 

In February 2018, the FASB issued Accounting Standards Update No. 2018-02 to ASC 220, “Income Statement – 
Reporting Comprehensive Income.”  The update amends current guidance surrounding the reclassification of certain tax 
effects from accumulated other comprehensive income.  The update is being issued as a result of the 2017 Tax Cuts and 
Jobs Act and the related impact to comprehensive income as a result of the application of current guidance with respect to 
changes  in  tax  rates.    Under  current  guidance,  entities  must  re-evaluate  the  carrying  value  of  deferred  tax  assets  and 
liabilities and adjust them for the tax effect of the rate change and record that change through earnings.  The result is that 
the tax effects for items that normally would only be recognized in comprehensive income will be recognized through 
earnings and results in stranded tax effects in accumulated other comprehensive income (loss) for the impact of the rate 
change.  The update will allow a reclassification from accumulated other comprehensive income (loss) to retained earnings 
for the stranded tax effects resulting from the 2017 Tax Cuts and Jobs Act.  The update is effective for all entities for fiscal 
years beginning after December 31, 2018.  The adoption of the update is not expected to have a significant impact to the 
Company’s consolidated financial statements 

46 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

(2) Investment Securities 

The amortized cost and estimated fair value by type of investment security at December 31, 2017 are as follows: 

Held to Maturity 

Gross 

Gross 

  Amortized 

  unrealized 

  unrealized 

cost 

gains 

losses 

Estimated 
fair value 

Carrying 
value 

(Dollars in Thousands) 

Other securities . . . . . . . . . . . . . . . . . . . . . . . . .      $ 
Total investment securities . . . . . . . . . . . . . . . .    $ 

 2,400     $
 2,400   $

 —     $
 —   $

 —     $ 
 —   $ 

 2,400     $
 2,400   $

 2,400  
 2,400  

Available for Sale 

Gross 

Gross 

  Amortized 

  unrealized 

  unrealized 

cost 

gains 

losses 

Estimated 
fair value 

Carrying 
value(1) 

(Dollars in Thousands) 

Residential mortgage-backed securities . . . . .       $  3,943,092     $   14,110     $  (65,969)    $  3,891,233     $  3,891,233  
Obligations of states and political 
 232,951  
subdivisions . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Equity securities  . . . . . . . . . . . . . . . . . . . . . . .    
 27,886  
Total investment securities . . . . . . . . . . . . . . .     $  4,196,263   $   22,274   $  (66,467)  $  4,152,070   $  4,152,070  

 232,951  
 27,886  

 225,096  
 28,075  

 7,871  
 293  

 (16) 
 (482) 

(1) 

Included in the carrying value of residential mortgage- backed securities are $654,063 of mortgage-backed securities issued by Ginnie Mae and 
$3,237,170 of mortgage-backed securities issued by Fannie Mae and Freddie Mac 

The  amortized  cost  and  estimated  fair  value  of  investment  securities  at  December 31,  2017  ,  by  contractual 
maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the 
right to prepay obligations with or without prepayment penalties. 

Held to Maturity 

Available for Sale 

  Amortized 
Cost 

  Estimated 
fair value 

  Amortized 

Cost 

Estimated 
fair value 

(Dollars in Thousands) 

 —  
Due in one year or less . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $   2,275     $   2,275     $ 
Due after one year through five years . . . . . . . . . . . . . . . . . . . . . . .   
 —  
 1,967  
Due after five years through ten years . . . . . . . . . . . . . . . . . . . . . . .   
Due after ten years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
 230,984  
Residential mortgage-backed securities . . . . . . . . . . . . . . . . . . . . . .   
   3,891,233  
Equity securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
 27,886  
Total investment securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $   2,400   $   2,400   $  4,196,263   $  4,152,070  

 —     $ 
 —  
 1,939  
 223,157  
   3,943,092  
 28,075  

 125  
 —  
 —  
 —  
 —  

 125  
 —  
 —  
 —  
 —  

47 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The amortized cost and estimated fair value by type of investment security at December 31, 2016 are as follows: 

Held to Maturity 

Gross 

Gross 

  Amortized 

  unrealized 

  unrealized 

cost 

gains 

losses 

Estimated 
fair value 

Carrying 
value 

(Dollars in Thousands) 

Other securities . . . . . . . . . . . . . . . . . . . . . . . . .      $ 
Total investment securities . . . . . . . . . . . . . . . .    $ 

 2,400     $
 2,400   $

—     $
 —   $

—     $ 
 —   $ 

 2,400     $
 2,400   $

 2,400  
 2,400  

Available for Sale 

Gross 

Gross 

  Amortized 

  unrealized 

  unrealized 

cost 

gains 

losses 

Estimated 
fair 
value 

Carrying 
value(1) 

(Dollars in Thousands) 

Residential mortgage-backed securities . . . . .       $  3,946,144     $   18,246     $  (69,920)    $  3,894,470     $  3,894,470  
Obligations of states and political 
 254,972  
subdivisions . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Equity securities  . . . . . . . . . . . . . . . . . . . . . . .    
 27,907  
Total investment securities . . . . . . . . . . . . . . .     $  4,218,841   $   29,343   $  (70,835)  $  4,177,349   $  4,177,349  

 254,972  
 27,907  

 244,622  
 28,075  

 10,783  
 314  

 (433) 
 (482) 

(1) 

Included  in  the  carrying  value  of  residential  mortgage-  backed  securities  are  $850,033  of  mortgage-backed  securities  issued  by  Ginnie  Mae, 
$3,026,832 of mortgage-backed securities issued by Fannie Mae and Freddie Mac and $17,605 issued by non-government entities 

Residential mortgage-backed securities are securities issued by Freddie Mac, Fannie Mae, Ginnie Mae or non-
government entities. Investments in residential mortgage-backed securities issued by Ginnie Mae are fully guaranteed by 
the U.S. government. Investments  in mortgage-backed securities issued by Freddie Mac and Fannie Mae are not fully 
guaranteed by the U.S. government; however, the Company believes that the quality of the bonds is similar to other AAA 
rated bonds with limited credit risk, particularly given the placement of Fannie Mae and Freddie Mac into conservatorship 
by  the  federal  government  in  early  September  2008  and  because  securities  issued  by  others  that  are  collateralized  by 
residential  mortgage-backed  securities  issued  by  Fannie  Mae  and  Freddie  Mac  are  rated  consistently  as  AAA  rated 
securities. 

The  amortized  cost  and  fair  value  of  available  for  sale  investment  securities  pledged  to  qualify  for  fiduciary 
powers,  to  secure  public  monies  as  required  by  law,  repurchase  agreements  and  short-term  fixed  borrowings  was 
$1,428,387,000 and $1,403,084,000, respectively, at December 31, 2017. 

Proceeds  from  the  sale  and  call  of  securities  available-for-sale  were  $396,066,000,  $352,743,000  and 
$164,163,000  during  2017,  2016  and  2015,  respectively,  which  amounts  included  $377,756,000,  $338,138,000  and 
$128,444,000 of mortgage-backed securities. Gross gains of $1,186,000, $586,000 and $2,450,000, and gross losses of 
$5,960,000, $3,212,000 and $6,132,000 were realized on the sales in 2017, 2016 and 2015, respectively. 

48 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

Gross  unrealized  losses  on  investment  securities  and  the  fair  value  of  the  related  securities,  aggregated  by 
investment category and length of time that individual securities have been in a continuous unrealized loss position, at 
December 31, 2017 were as follows: 

Less than 12 months 

12 months or more 

Total 

Available for sale: 

  Fair Value 

  Unrealized  
  Losses 

  Fair Value 

  Unrealized  
  Losses 
(Dollars in Thousands) 

  Fair Value 

  Unrealized  
  Losses 

Residential mortgage-backed securities  . . . . . . . . . . . . .       $  1,061,577      $   (13,157)     $  2,029,455       $   (52,812)    $  3,091,032      $   (65,969) 
 (16) 
Obligations of states and political subdivisions . . . . . . . .   
 (482) 
Equity securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
  $  1,078,610    $   (13,417)  $  2,037,996    $   (53,050)  $  3,116,606    $   (66,467) 

 5,534   
 11,499 

 6,056   
 19,518 

 522   
 8,019 

 (7) 
 (231)

 (9) 
 (251)

Gross  unrealized  losses  on  investment  securities  and  the  fair  value  of  the  related  securities,  aggregated  by 
investment category and length of time that individual securities have been in a continuous loss position, at December 31, 
2016 were as follows: 

Less than 12 months 

12 months or more 

Total 

Available for sale: 

  Fair Value 

  Unrealized   
  Losses 

  Fair Value 

  Unrealized  
  Losses 
(Dollars in Thousands) 

  Fair Value 

  Unrealized  
  Losses 

Residential mortgage-backed securities  . . . . . . . . . . . . .      $  2,513,872      $   (52,245)    $   396,695      $   (17,675)     $  2,910,567      $   (69,920) 
 (433) 
Obligations of states and political subdivisions . . . . . . . .   
 (482) 
Equity securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
  $  2,559,042    $   (52,862)  $   402,147    $   (17,973)  $  2,961,189    $   (70,835) 

 31,104   
 14,066 

 31,104   
 19,518 

 —   
 5,452 

 (433) 
 (184)

 —   
 (298)

The unrealized losses on investments in residential mortgage-backed securities are primarily caused by changes 
in market interest rates. Residential mortgage-backed securities are primarily securities issued by Freddie Mac, Fannie 
Mae and Ginnie Mae. The contractual cash obligations of the securities issued by Ginnie Mae are fully guaranteed by the 
U.S. government. The contractual cash obligations of the securities issued by Freddie Mac and Fannie Mae are not fully 
guaranteed by the U.S. government; however, the Company believes that the quality of the bonds is similar to other AAA 
rated bonds with limited credit risk, particularly given the placement of Fannie Mae and Freddie Mac into conservatorship 
by  the  federal  government  in  early  September  2008  and  because  securities  issued  by  others  that  are  collateralized  by 
residential  mortgage-backed  securities  issued  by  Fannie  Mae  and  Freddie  Mac  are  rated  consistently  as  AAA  rated 
securities. The decrease in fair value on residential mortgage-backed securities issued by Freddie Mac, Fannie Mae and 
Ginnie Mae is due to market interest rates. The Company has no intent to sell and more likely than not be required to sell 
before  a  market  price  recovery  or  maturity  of  the  securities;  therefore,  it  is  the  conclusion  of  the  Company  that  the 
investments  in  residential  mortgage-backed  securities  issued  by  Freddie  Mac,  Fannie  Mae  and  Ginnie  Mae  are  not 
considered other-than-temporarily impaired. In addition, the Company had a small investment in non-agency residential 
mortgage-backed securities that had additional market volatility beyond economically induced interest rate events, which 
were sold in the first quarter of 2017.  The Company concluded that the investments in non-agency residential mortgage-
backed securities were other-than-temporarily impaired due to both credit and other than credit issues. No impairment 
charges were recorded in 2017.  Impairment charges of $354,000 ($230,100, after tax) and $954,000 ($620,1000, after 
tax)  were  recorded  in  2016  and  2015,  respectively  on  the  non-agency  residential  mortgage  backed  securities.  The 
impairment charges represent the credit related impairment on the securities. 

The unrealized losses on investments in other securities are caused by fluctuations in market interest rates. The 
underlying cash obligations of the securities are guaranteed by the entity underwriting the debt instrument. It is the belief 
of the Company that the entity issuing the debt will honor its interest payment schedule, as well as the full debt at maturity. 
The securities are purchased by the Company for their economic value. The decrease in fair value is primarily due to 
market interest rates and not other factors, and because the Company has no intent to sell and will more likely than not be 

49 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
  
  
  
  
  
  
  
  
   
   
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
  
  
  
  
  
  
  
  
  
   
  
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

required to sell before a market price recovery or maturity of the securities, it is the conclusion of the Company that the 
investments are not considered other-than-temporarily impaired. 

The  following  table  presents  a  reconciliation  of  credit-related  impairment  charges  on  available-for-sale 

investments recognized in earnings for the twelve months ended December 31, 2017 (in Thousands): 

Balance at December 31, 2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $  13,931 
    (13,931)
 — 

Sale of other-than-temporarily impaired available-for-sale securities during period  . . . . . . . . . . . . . . . . . .   
Balance at December 31, 2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 

The  following  table  presents  a  reconciliation  of  credit-related  impairment  charges  on  available-for-sale 

investments recognized in earnings for the twelve months ended December 31, 2016 (in Thousands): 

Balance at December 31, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $  13,577 
354 
Balance at December 31, 2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $   13,931 

Impairment charges recognized during period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

The  following  table  presents  a  reconciliation  of  credit-related  impairment  charges  on  available-for-sale 

investments recognized in earnings for the twelve months ended December 31, 2015 (in Thousands): 

Balance at December 31, 2014 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $  12,623 
954 
Balance at December 31, 2015 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $   13,577 

Impairment charges recognized during period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

(3) Loans 

A summary of loans, by loan type at December 31, 2017 and 2016 is as follows: 

December 31,    
  December 31,    
2017 
2016 
(Dollars in Thousands) 

Commercial, financial and agricultural . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       $ 
Real estate - mortgage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Real estate - construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Consumer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

Total loans  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

 3,322,668     $ 
 1,133,525  
 1,683,550  
 49,543  
 158,886  
 6,348,172   $ 

 2,993,203  
 1,032,222  
 1,716,875  
 55,168  
 167,220  
 5,964,688  

(4) Allowance for Probable Loan Losses 

The  allowance  for  probable  loan  losses  primarily  consists  of  the  aggregate  loan  loss  allowances  of  the  bank 
subsidiaries. The allowances are established through charges to operations in the form of provisions for probable loan 
losses. Loan losses or recoveries are charged or credited directly to the allowances. The allowance for probable loan losses 
of each bank subsidiary is maintained at a level considered appropriate by management, based on estimated probable losses 
in  the  loan  portfolio.  The  allowance  for  probable  loan  losses  is  derived  from  the  following  elements:  (i) allowances 
established on specific impaired loans, which are based on a review of the individual characteristics of each loan, including 
the customer’s ability to repay the loan, the underlying collateral values, and the industry in which the customer operates, 
(ii) allowances based on actual historical loss experience for similar types of loans in the Company’s loan portfolio, and 

50 

 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

(iii) allowances based on general economic conditions, changes in the mix of loans, company resources, border risk and 
credit quality indicators, among other things.  

The Company’s management continually reviews the allowance for loan losses of the bank subsidiaries using the 
amounts determined from the allowances established on specific impaired loans, the allowance established on quantitative 
historical loss percentages, and the allowance based on qualitative data to establish an appropriate amount to maintain in 
the Company’s allowance for loan losses. Should any of the factors considered by management in evaluating the adequacy 
of the allowance for probable loan losses change, the Company’s estimate of probable loan losses could also change, which 
could affect the level of future provisions for probable loan losses. While the calculation of the allowance for probable 
loan losses utilizes management’s best judgment and all information available, the adequacy of the allowance is dependent 
on a variety of factors beyond the Company’s control, including, among other things, the performance of the entire loan 
portfolio, the economy, changes in interest rates and the view of regulatory authorities towards loan classifications. 

The loan loss provision is determined using the following methods. On a weekly basis, loan past due reports are 
reviewed by the credit quality committee to determine if a loan has any potential problems and if a loan should be placed 
on the Company’s internal classified report. Additionally, the Company’s credit department reviews the majority of the 
Company’s loans for proper internal classification purposes regardless of whether they are past due and segregates any 
loans with potential problems for further review. The credit department will discuss the potential problem loans with the 
servicing loan officers to determine any relevant issues that were not discovered in the evaluation. Also, an analysis of 
loans that is provided through examinations by regulatory authorities is considered in the review process. After the above 
analysis is completed, the Company will determine if a loan should be placed on an internal classified report because of 
issues related to the analysis of the credit, credit documents, collateral and/or payment history. 

World  and  U.S.  economic  conditions  have  continued  to  improve;  however,  there  remains  some  uncertainty 
created by continued issues with negative demographic trends, weak labor participation rates, enormous government debt, 
excessive regulations, and unfunded entitlement programs that could create a financial crisis.  The impact to the world and 
U.S. economy from these issues is being magnified by a lack of appropriate government action to find solutions to the 
problems.  In the Company’s market area, the challenges are further magnified by the uncertainty around the renegotiation 
of the North American Free Trade Agreement (“NAFTA”), and whether such negotiations will advance NAFTA or repeal 
it.  Economic risk factors are minimized by the underwriting standards of the bank subsidiaries. The general underwriting 
standards encompass the following principles:  (i) the financial strength of the borrower including strong earnings, a high 
net worth, significant liquidity and an acceptable debt to worth ratio, (ii) managerial and business competence, (iii) the 
ability to repay, (iv) for a new business, projected cash flows, (v) loan to value, (vi) in the case of a secondary guarantor, 
a guarantor financial statement, and (vii) financial and/or other character references.  Although the underwriting standards 
reduce the risk of loss, unique risk factors exist in each type of loan in which the bank subsidiaries invest. 

Commercial and industrial loans are mostly secured by the collateral pledged by the borrower that is directly 
related to the business activities of the company such as accounts receivable and inventory. The ability of the borrower to 
collect accounts receivable, and to turn inventory into sales are risk factors in the repayment of the loan. 

Construction and land development loans can carry risk of repayment when projects incur cost overruns, have an 
increase in the price of building materials, encounter zoning and environmental issues, or encounter other factors that may 
affect the completion of a project on time and on budget. Additionally, repayment risk may be negatively impacted when 
the market experiences a deterioration in the value of real estate. Risks specifically related to 1-4 family development loans 
also include the practice by the mortgage industry of more restrictive underwriting standards, which inhibits the buyer 
from obtaining long term financing and excessive housing and lot inventory in the market. 

Commercial  real  estate  loans  demonstrate  a  risk  of  repayment  when  market  values  deteriorate,  the  business 
experiences turnover in key management, the business has an inability to attract or keep occupancy levels stable, or when 

51 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

the  market  experiences  an  exit  of  a  specific  business  industry  that  is  significant  to  the  local  economy,  such  as  a 
manufacturing plant. 

First  and  second  lien  residential  1-4  family  mortgage  and  consumer  loan  repayments  may  be  affected  by 

unemployment or underemployment and deteriorating market values of real estate. 

A summary of the changes in the allowance for probable loan losses by loan class is as follows: 

December 31, 2017 

Domestic 

  Foreign   

  Commercial 
real estate: 
other 

   Commercial  

   construction &   real estate:   Commercial  

  Commercial  

land 

farmland &  
development    commercial   multifamily  

real estate:   Residential:   Residential:  
first lien 

junior lien   Consumer   Foreign  

Balance at December 31,  . . . . . . . .      $ 
Losses charge to allowance . . . .    
Recoveries credited to  
allowance . . . . . . . . . . . . . . . .    
Net losses charged to allowance  .    

Provision (credit) charged to 
operations  . . . . . . . . . . . . . . . . . .    
Balance at December 31,  . . . . . . . .     $ 

25,649      $ 

 (12,094)  

13,889      $ 
 (213) 

16,731      $ 
 (40)  

806      $ 
 —  

2,455      $ 
 (101) 

3,716      $ 
 (340) 

(Dollars in Thousands) 

 4,020  
 (8,074)  

 21  
 (192) 

 527  
 487  

 —  
 —  

 11  
 (90) 

 258  
 (82) 

531      $  884      $ 

 (309)  

 45  
 (264)  

 (1) 

 21  
 20  

Total 

64,661   
 (13,098) 

 4,903  
 (8,195) 

 10,330  
 27,905   $ 

 (2,022) 
 11,675   $ 

 (555)  
 16,663   $ 

 303  
 1,109   $ 

 585  
 2,950   $ 

 2,469  
 6,103   $ 

 173  
 440   $ 

 (62) 
 842   $ 

 11,221  
 67,687  

December 31, 2016 

Domestic 

  Foreign   

  Commercial 
real estate: 
other 

   Commercial   

   construction &   real estate:   Commercial  

  Commercial     development   commercial   multifamily  

junior lien    Consumer   Foreign  

Total 

land 

farmland &  

real estate:   Residential:   Residential:  
first lien 

Balance at December 31,  . . . . . . . .       $ 
Losses charge to allowance . . . .     
Recoveries credited to  
allowance . . . . . . . . . . . . . . . .     
Net losses charged to allowance  .     

Provision (credit) charged to 
operations  . . . . . . . . . . . . . . . . . .     
Balance at December 31,  . . . . . . . .      $ 

(Dollars in Thousands) 

21,431      $ 

 (32,959) 

13,920      $ 
 (16) 

19,769       $ 
 (1,890) 

1,248       $ 
 (180) 

 7,110  
 (25,849) 

 6,099  
 6,083  

 119  
 (1,771) 

—  
 (180) 

3,509       $ 

 (70) 

 21  
 (49) 

5,321       $ 
 (331) 

638       $ 1,152       $  66,988   
   (35,901) 

 (41) 

 (414) 

 278  
 (53) 

 69  
 (345) 

 19  
 (22) 

    13,715  
   (22,186) 

 30,067  
 25,649   $ 

 (6,114) 
 13,889   $ 

 (1,267) 
 16,731   $ 

 (262) 
 806   $ 

 (1,005) 
 2,455   $ 

 (1,552) 
 3,716   $ 

 238  
 531   $ 

    (246) 

    19,859  
 884   $   64,661  

Balance at December 31,  . . . . . . . .      $ 
Losses charge to allowance . . . .    
Recoveries credited to 
allowance . . . . . . . . . . . . . . . .    
Net losses charged to allowance  .    

Provision (credit) charged to 
operations  . . . . . . . . . . . . . . . . . .    
Balance at December 31,  . . . . . . . .     $ 

December 31, 2015 

Domestic 

Foreign 

  Commercial 
real estate: 
other 

  Commercial     

  construction &    real estate:    Commercial  

 Commercial    development 

land 

  farmland &    real estate:    Residential:    Residential:   
  commercial    multifamily   

  junior lien 

first lien 

  Consumer    Foreign   

22,352      $ 

 (24,802) 

12,955      $ 
 (695) 

18,683      $ 
 (492) 

846      $ 
 —  

3,589      $ 
 (157)  

4,683      $ 
 (275) 

(Dollars in Thousands) 

 3,135  
 (21,667) 

 141  
 (554) 

 963  
 471  

 —  
 —  

 30  
 (127)  

 431  
 156  

660      $  1,060      $ 

 (704) 

 170  
 (534) 

 —  

 10  
 10  

Total 

 64,828  
 (27,125) 

 4,880  
 (22,245) 

 20,746  
 21,431   $ 

 1,519  
 13,920   $ 

 615  
 19,769   $ 

 402  
 1,248   $ 

 47  
 3,509   $ 

 482  
 5,321   $ 

 512  
 638   $  1,152   $ 

 82  

 24,405  
 66,988  

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The  allowance  for  probable  loan  losses  is  a  reserve  established  through  a  provision  for  probable  loan  losses 
charged  to  expense,  which  represents  management’s  best  estimate  of  probable  loan  losses  when  evaluating  loans 
(i) individually or (ii) collectively. The decrease in the provision for probable loan losses charged to expense for the year 
ended December 31, 2017 can be attributed to a decrease in the historical loss experience in the commercial category of 
the calculation.  As discussed in prior periods, charge-offs increased from historical levels due to the deterioration of one 
relationship that is secured by multiple pieces of transportation equipment beginning in the fourth quarter of 2014.  The 
Company uses a three year historical charge-off experience in the calculation, therefore, as those charge-offs are eliminated 
from the calculation, the allowance for probable loan losses is impacted.  On August 26, 2017, Hurricane Harvey made 
landfall in Rockport, Texas, as a category four storm and followed the Gulf Coast of Texas north to the Houston metro 
area and finally the State of Louisiana.  The Texas Gulf Coast is an area where the Company serves many consumer and 
commercial customers.  The Company has reviewed the exposure to losses of property arising from the impact of Hurricane 
Harvey and has determined that the impact is not significant to warrant a specific reserve;  however, it is still evaluating 
the  impact,  therefore  the  Company’s  allowance  for probable  loan  losses  at December 31, 2017  includes  factors  in the 
qualitative ratios used in the calculation to incorporate the potential impact of losses arising from the impact of Hurricane 
Harvey on certain portions of the loan portfolio.  The increase in losses charged to the allowance for probable loan losses 
for the year ended December 31, 2016 can be attributed to further deterioration in the previously identified and charged 
down relationship primarily secured by multiple pieces of transportation equipment. In March 2016, litigation against the 
management of the borrower was filed in the State of Nevada, resulting in a going concern issue with the borrower’s 
operations  and  the  future  use  of  the  transportation  equipment  pledged  as  collateral  on  the  relationship.  As  a  result, 
management, in accordance with its credit review procedures, re-evaluated the collateral values on the equipment in light 
of  the  new  circumstances  and  reduced  the  collateral  values  accordingly,  resulting  in  a  further  charge-down  of  the 
relationship of approximately $19.4 million, which is included in the losses charged to the allowance in the commercial 
category in the table detailing the year ended December 31, 2016 activity. The impact of the charge-down is also reflected 
in the various tables in this Note including impaired loans, non-accrual loans and the credit quality indicator summary. 
Two large recoveries on loans charged off in prior years are included in the recoveries credited to the allowance in the 
table detailing activity for the year ended December 31, 2016.  The recoveries occurred in the first and third quarters of 
2016 in the amounts of $4.4 million and $6 million, respectively and are included in the Commercial and Commercial 
Real  Estate:  Other  Construction  and  Land  Development  categories.    The  increase  in  charge-offs  for  the  years  ended 
December 31, 2015 in the Commercial category can be attributed to a charge down of the previously discussed relationship 
that  is  primarily  secured  by  multiple  pieces  of  transportation  equipment.    The  relationship  was  charged  down  by 
$13.5 million for the year ended December 31, 2015. 

53 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The table below provides additional information on the balance of loans individually or collectively evaluated for 

impairment and their related allowance, by loan class: 

December 31, 2017 

Loans Individually 
Evaluated For 
Impairment 

Loans Collectively 
Evaluated For 
Impairment 

  Recorded 
  Investment 

  Allowance 

Recorded 
Investment 

  Allowance   

(Dollars in Thousands) 

Domestic 

Commercial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       $ 17,947      $
Commercial real estate: other construction & land 
development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Commercial real estate: farmland & commercial  . . . . . . . . . .   
Commercial real estate: multifamily . . . . . . . . . . . . . . . . . . . . .   
Residential: first lien  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Residential: junior lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Consumer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 2,455  
   33,123  
 476  
 6,852  
 723  
 1,281  
 347  

 300      $ 1,068,520      $  27,605  

 116  
 18  
 —  
 —  
 —  
 —  
 —  

   1,681,095  
   2,010,162  
 192,440  
 425,925  
 700,025  
 48,262  
 158,539  

 11,559  
 16,645  
 1,109  
 2,950  
 6,103  
 440  
 842  

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 63,204   $

 434   $ 6,284,968   $  67,253  

December 31, 2016 

Loans Individually 
Evaluated For 
Impairment 

Loans Collectively 
Evaluated For 
Impairment 

  Recorded 
  Investment 

  Allowance 

Recorded 
Investment 

  Allowance   

(Dollars in Thousands) 

Domestic 

Commercial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $   22,412     $ 
Commercial real estate: other construction & land 
development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Commercial real estate: farmland & commercial  . . . . . . . . . .   
Commercial real estate: multifamily . . . . . . . . . . . . . . . . . . . . .   
Residential: first lien  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Residential: junior lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Consumer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 4,776  
 10,810  
 552  
 6,836  
 978  
 1,295  
 746  

 —     $ 

 887,255     $   25,649  

 371  
 546  
 —  
 44  
 —  
 —  
 —  

    1,712,099  
    1,932,260  
 139,914  
 415,068  
 609,340  
 53,873  
 166,474  

 13,518  
 16,185  
 806  
 2,411  
 3,716  
 531  
 884  

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $   48,405   $ 

 961   $  5,916,283   $   63,700  

Loans accounted for on a non-accrual basis at December 31, 2017, 2016 and 2015 amounted to $54,730,000, 
$37,245,000  and  $47,685,000,  respectively.  The  effect  of  such  non-accrual  loans  reduced  interest  income  by 
approximately $977,000, $2,461,000 and $3,298,000 for the years ended December 31, 2017, 2016 and 2015, respectively. 
Amounts received on non-accruals are applied, for financial accounting purposes, first to principal and then to interest 
after all principal has been collected. Accruing loans contractually past due 90 days or more as to principal or interest 
payments at December 31, 2017, 2016 and 2015 amounted to approximately $7,257,000, $5,226,000 and $11,616,000, 
respectively. 

54 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
 
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The table below provides additional information on loans accounted for on a non-accrual basis by loan class: 

  December 31, 2017   December 31, 2016  
(Dollars in Thousands) 

Domestic 

Commercial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        $ 
Commercial real estate: other construction & land development . . . . . . . . . . . . .    
Commercial real estate: farmland & commercial  . . . . . . . . . . . . . . . . . . . . . . . . .    
Commercial real estate: multifamily . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Residential: first lien  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Residential: junior lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Consumer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Foreign  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

Total non-accrual loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

 17,909     $ 
 2,455  
 33,123  
 476  
 712  
 11  
 44  
 —  
 54,730   $ 

 22,369  
 4,776  
 8,314  
 552  
 655  
 166  
 26  
 387  
 37,245  

Impaired loans are those loans where it is probable that all amounts due according to contractual terms of the loan 
agreement  will  not  be  collected.  The  Company  has  identified  these  loans  through  its  normal  loan  review  procedures. 
Impaired loans are measured based on (i) the present value of expected future cash flows discounted at the loan’s effective 
interest rate; (ii) the loan’s observable market price; or (iii) the fair value of the collateral if the loan is collateral dependent. 
Substantially all of the Company’s impaired loans are measured at the fair value of the collateral. In limited cases, the 
Company may use other methods to determine the level of impairment of a loan if such loan is not collateral dependent. 

The following tables detail key information regarding the Company’s impaired loans by loan class for the year 

ended December 31, 2017: 

December 31, 2017 

  Recorded 
  Investment 

  Unpaid 
  Principal 
  Balance 

  Related 
  Allowance 
(Dollars in Thousands) 

  Average 
  Recorded 
  Investment 

Interest 
  Recognized  

Loans with Related Allowance 
Domestic 

Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Commercial real estate: other construction & land development . . . . . . . . . .    
Commercial real estate: farmland & commercial  . . . . . . . . . . . . . . . . . . . . .    

Total impaired loans with related allowance  . . . . . . . . . . . . . . . . . . . . . . .     $ 

 1,300    $ 
 145   
 449   
 1,894    $ 

 1,577    $ 
 169   
 590   
 2,336    $ 

 300    $ 
 116   
 18   
 434    $ 

 1,346    $ 
 150   
 489   
 1,985    $ 

 —   
 —   
 —   
 —   

Loans with No Related Allowance 
Domestic 

  Recorded 
  Investment 

December 31, 2017 

  Unpaid 
  Principal 
  Balance 

  Average 
  Recorded 
  Investment 

(Dollars in Thousands) 

Interest 
  Recognized   

Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $   16,646    $   44,095    $   19,615    $ 
Commercial real estate: other construction & land development . . . . . . . . . . . . . . . . . . . .    
Commercial real estate: farmland & commercial  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Commercial real estate: multifamily . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Residential: first lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Residential: junior lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Consumer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 2,310   
 32,675   
 476   
 6,852   
 723   
 1,281   
 347   

 2,455   
 33,275   
 505   
 6,968   
 736   
 1,283   
 347   

 3,493   
 38,536   
 511   
 7,249   
 970   
 1,293   
 750   

Total impaired loans with no related allowance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $   61,310    $   89,664    $   72,417    $ 

55 

 3   
 —   
 —   
 —   
 324   
 45   
 3   
 16   
 391   

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
       
        
       
            
           
  
 
   
 
   
 
   
 
   
 
   
 
 
 
 
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
            
           
           
            
 
 
   
 
   
 
   
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The following tables detail key information regarding the Company’s impaired loans by loan class for the year 

ended December 31, 2016:  

December 31, 2016 

  Recorded 
  Investment 

  Unpaid 
  Principal 
  Balance 

  Related 
  Allowance 

  Average 
  Recorded 
  Investment 

Interest 
  Recognized  

(Dollars in Thousands) 

Loans with Related Allowance 
Domestic 

Commercial real estate: other construction & land development . . . . . . . . . .     $ 
Commercial real estate: farmland & commercial  . . . . . . . . . . . . . . . . . . . . .    
Commercial real estate: multifamily . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

Total impaired loans with related allowance  . . . . . . . . . . . . . . . . . . . . . . .     $ 

 1,958    $ 
 2,808   
 62   
 4,828    $ 

 1,971    $ 
 3,948   
 62   
 5,981    $ 

 371   
 546   
 44   
 961    $ 

 2,512   
 3,247   
 62   
 9,579    $ 

 —   
 —   
 —   
 —   

Loans with No Related Allowance 
Domestic 

  Recorded 
  Investment 

December 31, 2016 

  Unpaid 
  Principal 
  Balance 

  Average 
  Recorded 
  Investment 
(Dollars in Thousands) 

Interest 
  Recognized   

Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        $   21,412    $   50,737    $   19,354    $ 
Commercial real estate: other construction & land development . . . . . . . . . . . . . . . . . . . .     
Commercial real estate: farmland & commercial  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
Commercial real estate: multifamily . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
Residential: first lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
Residential: junior lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
Consumer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     

 4,419   
 9,054   
 562   
 6,847   
 1,017   
 1,295   
 746   

 2,818   
 8,002   
 552   
 6,774   
 978   
 1,295   
 746   

 2,336   
 8,523   
 401   
 6,860   
 1,011   
 1,214   
 751   

Total impaired loans with no related allowance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $   42,577    $   74,677    $   40,450    $ 

 3   
 67   
 110   
 —   
 298   
 52   
 1   
 16   
 547   

A  portion  of  the  impaired  loans  have  adequate  collateral  and  credit  enhancements  not  requiring  a  related 
allowance for loan loss. Management is confident the Company’s loss exposure regarding these credits will be significantly 
reduced due to the Company’s long-standing practices that emphasize secured lending with strong collateral positions and 
guarantor support. Management is likewise confident the reserve for probable loan losses is adequate.  

Management of the Company recognizes the risks associated with these impaired loans.  However, management's 
decision  to  place  loans  in  this  category  does  not  necessarily  mean  that  losses  will  occur.  In  the  current  environment, 
troubled loan management can be protracted because of the legal and process problems that delay the collection of an 
otherwise collectible loan.  Additionally, management believes that the collateral related to these impaired loans and/or 
the secondary support from guarantors mitigates the potential for losses from impaired loans.     

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The following table details loans accounted for as “troubled debt restructuring,” segregated by loan class.  Loans 

accounted for as troubled debt restructuring are included in impaired loans. 

     December 31, 2017    December 31, 2016  

(Dollars in Thousands) 

Domestic  

Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Commercial real estate:  farmland & commercial . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Residential:  first lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Residential:  junior lien  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Consumer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Foreign  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 6,910    $ 
 — 
 6,140 
 712 
 1,237 
 347 

 10,710  
 3,086  
 6,181  
 812  
 1,269  
 360  

Total troubled debt restructuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  

 $ 

 15,346  $ 

 22,418  

The bank subsidiaries charge off that portion of any loan which management considers to represent a loss, as well 
as that portion of any other loan which is classified as a “loss” by bank examiners. Commercial and industrial or real estate 
loans are generally considered by management to represent a loss, in whole or part, when an exposure beyond any collateral 
coverage is apparent and when no further collection of the loss portion is anticipated based on the borrower’s financial 
condition and general economic conditions in the borrower’s industry. Generally, unsecured consumer loans are charged-
off when 90 days past due. 

While  management  of  the  Company  considers  that  it  is  generally  able  to  identify  borrowers  with  financial 
problems  reasonably  early  and  to  monitor  credit  extended  to  such  borrowers  carefully,  there  is  no  precise  method  of 
predicting loan losses. The determination that a loan is likely to be uncollectible and that it should be wholly or partially 
charged-off as a loss is an exercise of judgment. Similarly, the determination of the adequacy of the allowance for probable 
loan losses can be made only on a subjective basis. It is the judgment of the Company’s management that the allowance 
for probable loan losses at December 31, 2017 and December 31, 2016, was adequate to absorb probable losses from loans 
in the portfolio at that date. 

The following table presents information regarding the aging of past due loans by loan class: 

Domestic 

  30 - 59 
  Days 

  60 - 89 
  Days 

December 31, 2017 

  90 Days or 
  90 Days or   greater & 
  Greater 

  Total 
Past 
  still accruing    Due 
(Dollars in Thousands) 

  Current 

  Portfolio 

Total 

Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . .      $   3,790       $ 
Commercial real estate: other construction & 
land development  . . . . . . . . . . . . . . . . . . . . . .   
Commercial real estate: farmland &  
commercial . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Commercial real estate: multifamily . . . . . . . . .   
Residential: first lien . . . . . . . . . . . . . . . . . . . .   
Residential: junior lien . . . . . . . . . . . . . . . . . . .   
Consumer . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 3,925   
 84   
 4,295   
 1,310   
 868   
 1,229   

 354   

 518   
 —   
    2,458   
 580   
 98   
 69   

 398       $   18,308      $ 

 537      $  22,496      $  1,063,971      $   1,086,467   

 308   

 820   

 6   

 1,482   

    1,682,068   

    1,683,550   

 31,133   
 476   
 4,095   
 1,110   
 160   
 667   

 954   
 —   
 3,861   
 1,099   
 133   
 667   

    2,043,285   
 192,916   
 432,777   
 700,748   
 49,543   
 158,886   
 7,257    $  77,053    $  6,271,119    $   6,348,172   

    2,007,709   
 192,356   
 421,929   
 697,748   
 48,417   
 156,921   

    35,576   
 560   
    10,848   
 3,000   
 1,126   
 1,965   

Total past due loans  . . . . . . . . . . . . . . . . . . .    $  15,855    $  4,429    $   56,769    $ 

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

Domestic 

  30 - 59 
  Days 

  60 - 89 
  Days 

December 31, 2016 

  90 Days or 
  90 Days or   greater & 
  Greater 

  Total 
Past 
  still accruing   Due 
(Dollars in Thousands) 

  Current 

  Portfolio 

Total 

Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . .    $   4,081      $ 
Commercial real estate: other construction & 
land development  . . . . . . . . . . . . . . . . . . . . . .   
Commercial real estate: farmland &  
commercial . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Commercial real estate: multifamily . . . . . . . . .   
Residential: first lien . . . . . . . . . . . . . . . . . . . .   
Residential: junior lien . . . . . . . . . . . . . . . . . . .   
Consumer . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 3,454   
 44   
 5,615   
 762   
 910   
 931   

 1,502   

    3,054   
 —   
    1,350   
 178   
 95   
 425   

 829      $   21,123       $ 

 392       $  26,033      $ 

 883,634       $ 

 909,667   

 396   

 4,456   

 9   

 6,354   

    1,710,521   

    1,716,875   

 6,150   
 552   
 4,143   
 540   
 413   
 397   

 289   
 —   
 3,756   
 382   
 387   
 11   

    1,943,070   
 140,466   
 421,904   
 610,318   
 55,168   
 167,220   
 5,226    $  61,400    $  5,903,288    $   5,964,688   

    1,930,412   
 139,870   
 410,796   
 608,838   
 53,750   
 165,467   

    12,658   
 596   
    11,108   
 1,480   
 1,418   
 1,753   

Total past due loans  . . . . . . . . . . . . . . . . . . .    $  17,299    $  6,327    $   37,774    $ 

The  increase  in  the  commercial  real  estate:  farmland  and  commercial  in  the  90  days  and  greater  category  at 
December 31, 2017 compared to December 31, 2016 can be attributed to a relationship that is secured by a water park that 
is currently classified as Impaired.  The Company’s internal classified report is segregated into the following categories: 
(i) “Special  Review  Credits,”  (ii) “Watch  List—Pass  Credits,”  or  (iii) “Watch  List—Substandard  Credits.”  The  loans 
placed in the “Special Review Credits” category reflect the Company’s opinion that the loans reflect potential weakness 
which require monitoring on a more frequent basis. The “Special Review Credits” are reviewed and discussed on a regular 
basis with the credit department and the lending staff to determine if a change in category is warranted. The loans placed 
in  the  “Watch  List—Pass  Credits”  category  reflect  the  Company’s  opinion  that  the  credit  contains  weaknesses  which 
represent  a  greater  degree of risk, which warrant  “extra  attention.”  The  “Watch  List—Pass  Credits”  are  reviewed  and 
discussed  on  a  regular  basis  with  the  credit  department  and  the  lending  staff  to  determine  if  a  change  in  category  is 
warranted.  The  loans  placed  in  the  “Watch  List—Substandard  Credits”  classification  are  considered  to  be  potentially 
inadequately protected by the current sound worth and debt service capacity of the borrower or of any pledged collateral. 
These  credit  obligations,  even  if  apparently  protected  by  collateral  value,  have  shown  defined  weaknesses  related  to 
adverse financial, managerial, economic, market or political conditions which may jeopardize repayment of principal and 
interest. Furthermore, there is the possibility that some future loss could be sustained by the Company if such weaknesses 
are not corrected. For loans that are classified as impaired, management evaluates these credits in accordance with the 
provision  of.  ASC  310-10,  “Receivables,”  and,  if  deemed  necessary,  a  specific  reserve  is  allocated  to  the  credit.  The 
specific reserve allocated under ASC 310-10, is based on (i) the present value of expected future cash flows discounted at 
the loan’s effective interest rate; (ii) the loan’s observable market price; or (iii) the fair value of the collateral if the loan is 
collateral dependent. Substantially all of the Company’s loans evaluated as impaired under ASC 310-10 are measured 
using the fair value of collateral method. In limited cases, the Company may use other methods to determine the specific 
reserve of a loan under ASC 310-10 if such loan is not collateral dependent. 

The allowance based on historical loss experience on the Company’s remaining loan portfolio, which includes 
the  “Special  Review  Credits,”  “Watch  List—Pass  Credits,”  and  “Watch  List—Substandard  Credits”  is  determined  by 
segregating the remaining loan portfolio into certain categories such as commercial loans, installment loans, international 
loans, loan concentrations and overdrafts. Installment loans are then further segregated by number of days past due. A 
historical  loss  percentage,  adjusted  for  (i) management’s  evaluation  of  changes  in  lending  policies  and  procedures, 
(ii) current economic conditions in the market area served by the Company, (iii) other risk factors, (iv) the effectiveness 
of the internal loan review function, (v) changes in loan portfolios, and (vi) the composition and concentration of credit 
volume is applied to each category. Each category is then added together to determine the allowance allocated under ASC 
450-20. 

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

A summary of the loan portfolio by credit quality indicator by loan class is as follows: 

December 31, 2017 

Domestic 

(Dollars in Thousands) 

Pass 

  Special 
  Review 

  Watch 
  List—Pass   Substandard   

  Watch List—   Watch List—  

Impaired 

Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       $ 
Commercial real estate: other construction & land development . . . .   
Commercial real estate: farmland & commercial  . . . . . . . . . . . . . . .   
Commercial real estate: multifamily . . . . . . . . . . . . . . . . . . . . . . . . .   
Residential: first lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Residential: junior lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Consumer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

    1,616,604   
    1,863,763   
 192,440   
 425,811   
 699,875   
 48,262   
 158,539   

 1,288   
 5,134   
 —   
 40   
 150   
 —   
 —   

 905,707      $ 

 —      $ 

 3,170       $ 
 672   
 41,820   
 —   
 —   
 —   
 —   
 —   

 159,643       $ 

 62,531   
 99,445   
 —   
 74   
 —   
 —   
 —   
 321,693    $ 

 17,947   
 2,455   
 33,123   
 476   
 6,852   
 723   
 1,281   
 347   
 63,204   

Total  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  5,911,001    $ 

 6,612    $   45,662    $ 

Domestic 

(Dollars in Thousands) 

Pass 

  Special 
  Review 

  Watch 
  List—Pass   Substandard   

  Watch List—   Watch List—  

Impaired 

December 31, 2016 

Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       $ 
Commercial real estate: other construction & land development . . . .   
Commercial real estate: farmland & commercial  . . . . . . . . . . . . . . .   
Commercial real estate: multifamily . . . . . . . . . . . . . . . . . . . . . . . . .   
Residential: first lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Residential: junior lien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Consumer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

    1,648,633   
    1,792,542   
 139,914   
 413,638   
 609,190   
 53,873   
 166,474   

 1,986   
 7,983   
 —   
 814   
 150   
 —   
 —   

 720,350       $   90,746      $ 

 1,121       $ 
 —   
 59,872   
 —   
 —   
 —   
 —   
 —   

 75,038       $ 
 61,480   
 71,863   
 —   
 616   
 —   
 —   
 —   
 208,997    $ 

 22,412   
 4,776   
 10,810   
 552   
 6,836   
 978   
 1,295   
 746   
 48,405   

Total  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  5,544,614    $  101,679    $   60,993    $ 

The decrease in Special review credits for December 31, 2017 compared to December 31, 2016 can be attributed 
to the reclassification of a relationship secured by barges used in the transportation of petroleum products from Special 
Review to Watch List - Substandard and by the reclassification of a relationship secured by equipment used in oil and gas 
production from Special Review to the Pass category.  The decrease in the Watch List – Pass credits for December 31, 
2017 compared to December 31, 2016 can be attributed to a relationship secured by real estate from Watch List – Pass to 
the Pass category.  The increase in Watch List – Substandard credits at December 31, 2017 compared to December 31, 
2016 can be primarily attributed to the relationship mentioned above, in addition to the reclassification of three additional 
relationships from Pass to Watch List – Substandard.  One such relationship is in the oil and gas production business, one 
is in the water park business and is secured by a water park, and one is secured by construction equipment.  Additionally, 
there was an increase in the outstanding balance on a relationship primarily secured by transportation equipment, which 
was already classified as Watch List-Substandard at December 31, 2016.     

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

(5) Bank Premises and Equipment 

A summary of bank premises and equipment, by asset classification, at December 31, 2017 and 2016 were as 

follows: 

Bank buildings and improvements . . . . . . . . . . . . . . . . . . . . . . . . . . .       
Furniture, equipment and vehicles . . . . . . . . . . . . . . . . . . . . . . . . . . .     
Land . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Real estate held for future expansion: 

Land, building, furniture, fixture and equipment . . . . . . . . . . . . .     
Less: accumulated depreciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Bank premises and equipment, net . . . . . . . . . . . . . . . . . . . . . . .    

(6) Goodwill and Other Intangible Assets 

Estimated 
useful lives 

2017 
2016 
(Dollars in Thousands) 

 5 
 1 

-   40  years       $   550,094     $   542,063  
-   20  years   
 280,586  
 125,213  

 289,743  
 123,087  

 7 

-   27  years   

 —  
 —  
    (448,470) 
    (420,279) 
$   514,454   $   527,583  

The majority of the Company’s identified intangibles are in the form of amortizable core deposit premium.  A 
small portion of the fully amortized identified intangibles represent identified intangibles in the acquisition of the rights to 
the insurance agency contracts of InsCorp, Inc., acquired in 2008. Information on the Company’s identified intangible 
assets follows: 

  Carrying 
Amount 

  Accumulated 
  Amortization 
(Dollars in Thousands) 

Net 

December 31, 2017: 

Core deposit premium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Identified intangible (contract rights) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Total identified intangibles  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

 58,675   $ 
 2,022  
 60,697   $ 

 58,675   $ 
 2,022  
 60,697   $ 

December 31, 2016: 

Core deposit premium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Identified intangible (contract rights) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Total identified intangibles  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

 58,675   $ 
 2,022  
 60,697   $ 

 58,650   $ 
 2,022  
 60,672   $ 

 —  
 —  
 —  

 25  
 —  
 25  

Amortization expense of intangible assets for the years ended December 31, 2017, 2016 and 2015, was $25,000, 

$128,000 and $644,000, respectively.  

There were no changes in the carrying amount of goodwill for the years ended December 31, 2017 and 2016. 

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

(7) Deposits 

Deposits as of December 31, 2017 and 2016 and related interest expense for the years ended December 31, 2017, 

2016 and 2015 were as follows: 

2016 
2017 
(Dollars in Thousands) 

Deposits: 

Demand - non-interest bearing 

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $  2,609,932   $  2,509,544  
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 648,507  
Total demand non-interest bearing . . . . . . . . . . . . . . . . . . . . . .    
    3,158,051  
Savings and interest bearing demand 

 633,323  
    3,243,255  

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Total savings and interest bearing demand  . . . . . . . . . . . . . . .    
Time, certificates of deposit $100,000 or more 

    2,615,143  
 629,988  
    3,245,131  

    2,589,675  
 614,053  
    3,203,728  

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 637,006  
 808,881  

 748,104  
 838,161  

Less than $100,000 

 389,682  
Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 272,363  
Total time, certificates of deposit . . . . . . . . . . . . . . . . . . . . . . .    
    2,248,310  
Total deposits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $  8,544,892   $  8,610,089  

 354,998  
 255,621  
    2,056,506  

Interest expense: 

Savings and interest bearing demand 

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Total savings and interest bearing demand  . . . . . . . .    
Time, certificates of deposit $100,000 or more 

2017 

2016 
(Dollars in Thousands) 

2015 

 5,453   $ 
 755  
 6,208  

 3,922   $ 
 640  
 4,562  

 3,026  
 567  
 3,593  

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 3,644  
 4,105  

 3,881  
 3,929  

 4,693  
 4,116  

Less than $100,000 

Domestic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Total time, certificates of deposit . . . . . . . . . . . . . . . .    
Total interest expense on deposits . . . . . . . . . . . . . . . . . .    $ 

 1,680  
 1,447  
 1,312  
 744  
 706  
 675  
 11,233  
 9,963  
 9,736  
 15,944   $   14,525   $   14,826  

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

Scheduled maturities of time deposits as of December 31, 2017 were as follows: 

Total 
  (in Thousands)  
2018  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $  1,859,507  
 139,276  
2019  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
 41,572  
2020  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
 13,303  
2021  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
 2,760  
2022  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
 88  
Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $  2,056,506  

Scheduled maturities of time deposits in amounts of $100,000 or more at December 31, 2017, were as follows: 

Due within 3 months or less . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       $ 
Due after 3 months and within 6 months . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Due after 6 months and within 12 months . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Due after 12 months  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

Total 
(in Thousands) 
 557,206 
 348,695 
 404,776 
 135,210 
  $  1,445,887 

Time deposits that meet or exceed the FDIC insurance limit of $250,000 at December 31, 2017 and December 

31, 2016 were $894,000 and $1,005,000, in thousands, respectively. 

(8) Securities Sold Under Repurchase Agreements 

The Company’s bank subsidiaries have entered into repurchase agreements with an investment banking firm and 
individual  customers  of  the  bank  subsidiaries.  The  purchasers  have  agreed  to  resell  to  the  bank  subsidiaries  identical 
securities  upon  the  maturities  of  the  agreements.  Securities  sold  under  repurchase  agreements  were  mortgage-backed 
securities and averaged $402,396,000 and $759,458,000 during 2017 and 2016, respectively, and the maximum amount 
outstanding at any month end during 2017 and 2016 was $514,616,000 and $819,155,000 respectively. 

62 

 
 
 
 
 
 
 
     
 
 
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
  
  
  
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

Further information related to repurchase agreements at December 31, 2017 and 2016 is set forth in the following 

table: 

Collateral Securities 

Repurchase Borrowing 

  Book Value of 
  Securities Sold    Securities Sold   

  Fair Value of 

  Balance of 
Liability 
(Dollars in Thousands) 

  Weighted Average    
Interest Rate 

December 31, 2017 term: 

Overnight agreements  . . . . . . . . . . . . . . . . . . . . . . .    $ 
1 to 29 days . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
30 to 90 days . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Over 90 days . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Total  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 

 340,054   $ 
 —  
 109,300  
 11,327  
 460,681   $ 

 334,506   $   242,824   
 —   
 —  
 100,000   
 107,238  
 11,168  
 10,981   
 452,912   $   353,805   

December 31, 2016 term: 

Overnight agreements  . . . . . . . . . . . . . . . . . . . . . . .    $ 
1 to 29 days . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
30 to 90 days . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Over 90 days . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Total  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 

 295,282   $ 
 10,250  
 2,315  
 382,304  
 690,151   $ 

 292,286   $   190,915   
 9,863   
 10,148  
 2,300   
 2,317  
 375,060  
 301,907   
 679,811   $   504,985   

 0.25 % 
 —  
 3.99  
 0.74  
 1.32 % 

 0.15 % 
0.50  
 0.33  
 4.01  
 2.46 % 

The book value and fair value of securities sold includes the entire book value and fair value of securities partially 

or fully pledged under repurchase agreements. 

(9) Other Borrowed Funds 

Other  borrowed  funds  include  Federal  Home  Loan  Bank  borrowings,  which  are  short  and  long-term  fixed 
borrowings issued by the Federal Home Loan Bank of Dallas at the market price offered at the time of funding. These 
borrowings are secured by mortgage-backed investment securities and a portion of the Company’s loan portfolio. The 
increase in other borrowed funds is a result of purchases of available-for-sale securities. 

Further information regarding the Company’s other borrowed funds at December 31, 2017 and 2016 is set forth 

in the following table: 

Federal Home Loan Bank advances—short-term 

December 31,  

2017 
2016 
(Dollars in Thousands) 

Balance at year end  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Rate on balance outstanding at year end  . . . . . . . . . . . . . .    
Average daily balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Average rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Maximum amount outstanding at any month end . . . . . . .     $  1,043,250  

$ 
 1.44 %     
$ 
 1.23 %     
$ 

 945,225  

 839,858  

Federal Home Loan Bank advances—long-term(1) 

Balance at year end  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Rate on balance outstanding at year end  . . . . . . . . . . . . . .    
Average daily balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Average rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Maximum amount outstanding at any month end . . . . . . .     $ 

 250,000  

 51,644  

$ 
 1.26 %     
$ 
 1.26 %     
$ 

 250,000  

 583,375  

 0.66 % 

 483,379  

 0.47 % 

 600,875  

 150,000  

 0.58 % 

 150,000  

 0.58 % 

 150,000  

(1)  Long-term advances outstanding at December 31, 2017 mature in the following increments:  $100,000,000 in November 2027 and $150,000,000 in 
December 2027 and are callable by the FHLB on a quarterly basis.  Long-Term advances outstanding at December 31, 2016 matured in January 2017. 

63 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
  
            
           
           
          
 
  
  
  
  
  
  
  
  
  
 
   
 
   
 
   
 
 
 
  
  
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
  
           
             
 
  
  
 
   
 
   
 
  
  
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

(10) Junior Subordinated Deferrable Interest Debentures 

The Company has formed six statutory business trusts under the laws of the State of Delaware, for the purpose of issuing trust 
preferred  securities.  The  statutory  business  trusts  formed  by  the  Company  (the  “Trusts”)  have  each  issued  Capital  and  Common 
Securities and invested the proceeds thereof in an equivalent amount of junior subordinated debentures (the “Debentures”) issued by 
the Company. As of December 31, 2017 and December 31, 2016, the principal amount of debentures outstanding totaled $160,416,000. 
On July 29, 2015, the Company bought back a portion of the Capital Securities of IB Capital Trusts X and XI from the holder of the 
securities for a price that reflected an approximate 24.5% discount from the redemption prices of the securities.  The Company thereby 
retired $13,000,000 of the total $34,021,000 of related Junior Subordinated Deferrable Interest Debentures related to IB Capital Trust 
X and $1,000,000 of the total $27,990,000 of related Junior Subordinated Deferrable Interest Debentures related to IB Capital Trust XI.  
On November 1, 2016, the Company bought back a portion of the Capital Securities of IB Capital Trust XI from the holder of the 
securities for a price that reflected an approximate 24% discount from the redemption price of the securities.  The Company thereby 
retired $1,000,000 of the total $26,990,000 of related Junior Subordinated Deferrable Interest Debentures related to IB Capital Trust XI.  
The discounts recorded in connection with the repurchases of the outstanding Capital Securities are included in other income on the 
consolidated financial statements. 

The Debentures are subordinated and junior in right of payment to all present and future senior indebtedness (as defined in 
the respective indentures) of the Company, and are pari passu with one another. The interest rate payable on, and the payment terms of 
the Debentures are the same as the distribution rate and payment terms of the respective issues of Capital and Common Securities issued 
by the Trusts. The Company has fully and unconditionally guaranteed the obligations of each of the Trusts with respect to the Capital 
and Common Securities. The Company has the right, unless an Event of Default (as defined in the Indentures) has occurred and is 
continuing, to defer payment of interest on the Debentures for up to twenty consecutive quarterly periods on Trusts VI, VIII, IX, X, XI 
and XII. If interest payments on any of the Debentures are deferred, distributions on both the Capital and Common Securities related to 
that Debenture would also be deferred. The redemption prior to maturity of any of the Debentures may require the prior approval of the 
Federal Reserve and/or other regulatory bodies. 

For financial reporting purposes, the Trusts are treated as investments of the Company and not consolidated in the consolidated 
financial statements. Although the Capital Securities issued by each of the Trusts are not included as a component of shareholders’ 
equity on the consolidated statement of condition, the Capital Securities are treated as capital for regulatory purposes. Specifically, 
under applicable regulatory guidelines, the Capital Securities issued by the Trusts qualify as Tier 1 capital up to a maximum of 25% of 
Tier 1 capital on an aggregate basis. Any amount that exceeds the 25% threshold would qualify as Tier 2 capital. At December 31, 2017 
and December 31, 2016, the total $160,416,000 of the Capital Securities outstanding qualified as Tier 1 capital. 

The following table illustrates key information about each of the Debentures and their interest rates at December 31, 2017: 

Junior 
  Subordinated   
  Deferrable 

Interest 

  Debentures 

  Repricing 
  Frequency 

Interest 
Rate 

Interest 

  Rate Index(1) 

  Maturity Date 

Optional 
  Redemption Date(1)   

Trust VI  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       $ 
Trust VIII  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      
Trust IX  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      
Trust X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      
Trust XI  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      
Trust XII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      

(Dollars in Thousands) 
 25,774    
 25,774    
 41,238    
 21,021    
 25,990    
 20,619    

Quarterly 
Quarterly 
Quarterly 
Quarterly 
Quarterly 
Quarterly 

 4.87  %  LIBOR +  3.45     November 2032    
October 2033    
 4.41  %  LIBOR +  3.05    
October 2036    
 2.96  %  LIBOR +  1.62    
February 2037    
 3.03  %  LIBOR +  1.65    
July 2037    
 2.96  %  LIBOR +  1.62    
September 2037    
 2.93  %  LIBOR +  1.45    

February 2008   
October 2008   
October 2011   
February 2012   
July 2012   
September 2012   

  $ 

 160,416   

(1)  The Capital Securities may be redeemed in whole or in part on any interest payment date after the Optional Redemption Date. 

(11) Earnings per Share (“EPS”) 

Basic EPS is calculated by dividing net income by the weighted average number of common shares outstanding. 
The  computation  of  diluted  EPS  assumes  the  issuance  of  common  shares  for  all  dilutive  potential  common  shares 

64 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
 
     
 
     
 
     
 
     
 
     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

outstanding  during  the  reporting  period.  The  calculation  of  the  basic  EPS  and  the  diluted  EPS  for  the  years  ended 
December 31, 2017, 2016, and 2015 is set forth in the following table: 

  Net Income 
(Numerator) 

Shares 
  (Denominator)   
(Dollars in Thousands, 
Except Per Share Amounts) 

Per Share 
Amount 

December 31, 2017: 
Basic EPS 

Net income available to common 
shareholders . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Potential dilutive common shares and 
warrants  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Diluted EPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
December 31, 2016: 
Basic EPS 

Net income available to common 
shareholders . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Potential dilutive common shares and 
warrants  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Diluted EPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
December 31, 2015: 
Basic EPS 

Net income available to common 
shareholders . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Potential dilutive common shares . . . . . . . . .    
Diluted EPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

 157,436    66,046,155  $ 

2.38  

 —  

 732,281 

 157,436    66,778,436  $ 

2.36  

 133,932    65,967,989  $ 

2.03  

—  

 345,501 
  66,313,490   $ 

 133,932 

 136,726    66,411,193  $ 

—  

 136,726   

 225,160 
 66,636,353   $ 

2.02  

2.06  

2.05  

(12) Employees’ Profit Sharing Plan 

The  Company  has  a  deferred  profit  sharing  plan  for  full-time  employees  with  a  minimum  of  one  year  of 
continuous employment. The Company’s annual contribution to the plan is based on a percentage, as determined by the 
Board of Directors, of income before income taxes, as defined, for the year. Allocation of the contribution among officers 
and employees’ accounts is based on length of service and amount of salary earned. Profit sharing costs of $3,750,000 
$3,650,000 and $3,525,000 were charged to income for the years ended December 31, 2017, 2016, and 2015, respectively. 

(13) International Operations 

The Company provides international banking services for its customers through its bank subsidiaries. Neither the 
Company  nor  its  bank  subsidiaries  have  facilities  located  outside  the  United  States.  International  operations  are 
distinguished from domestic operations based upon the domicile of the customer. 

Because the resources employed by the Company are common to both international and domestic operations, it 

is not practical to determine net income generated exclusively from international activities. 

65 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
         
         
      
 
 
 
 
  
  
 
  
 
 
 
 
  
 
 
 
 
  
  
 
  
 
 
 
 
  
 
 
 
 
  
  
 
  
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

A summary of assets attributable to international operations at December 31, 2017 and 2016 are as follows: 

Loans: 

2017 

2016 

(Dollars in Thousands) 

Commercial  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  113,019   $  124,079  
 43,141  
Others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
   167,220  
 (884)  
Net loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  158,044   $  166,336  
 603  

Accrued interest receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 

Less allowance for probable loan losses . . . . . . . . . . . . . . . . . . . . . .   

 45,867  
   158,886  
 (842) 

 671   $ 

At December 31, 2017, the Company had $99,547,000 in outstanding standby and commercial letters of credit to 

facilitate trade activities.  

Revenues  directly  attributable  to  international  operations  were  approximately  $5,248,000,  $5,495,000  and 

$6,113,000 for the years ended December 31, 2017, 2016 and 2015, respectively. 

(14) Income Taxes 

The Company files a consolidated U.S. Federal and State income tax return. The current and deferred portions of 
net  income  tax  expense  included  in  the  consolidated  statements  of  income  are  presented  below  for  the  years  ended 
December 31: 

Current 

2017 

2016 

2015 

(Dollars in Thousands) 

U.S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $   56,974   $   52,403   $   65,196  
 5,258  
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 (6) 
 70,448  
Total current taxes . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 3,362  
 —  
 55,765  

 2,662  
 —  
 59,636  

Deferred 

 (261) 
U.S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 (71) 
State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 (332) 
Total deferred taxes . . . . . . . . . . . . . . . . . . . . . . . . . .    
Total income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . .     $   64,206   $   63,071   $   70,116  

 4,620  
 (50) 
 4,570  

 7,279  
 27  
 7,306  

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

Total income tax expense differs from the amount computed by applying the U.S. Federal income tax rate of 35% 
for 2017, 2016 and 2015 to income before income taxes. The reasons for the differences for the years ended December 31 
are as follows: 

Computed expected tax expense  . . . . . . . . . . . . . . . . . . .       $   77,643     $   69,253     $   72,389  
Change in taxes resulting from: 

2017 

2016 

2015 

(Dollars in Thousands) 

Tax-exempt interest income  . . . . . . . . . . . . . . . . . . . .    
State tax, net of federal income taxes, tax credit 
and refunds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Resolution of IRS exam . . . . . . . . . . . . . . . . . . . . . . . .    
Other investment income . . . . . . . . . . . . . . . . . . . . . . .    
Deferred tax adjustment due to federal tax rate 
change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 (4,701) 

 (3,940) 

 (3,910) 

 1,697  
 (4,985) 
 (3,198) 

 3,287  
 —  
 (3,694) 

 3,371  
 —  
 (3,540) 

 —  
 1,806  
Actual tax expense . . . . . . . . . . . . . . . . . . . . . . . . . . .     $   64,206   $   63,071   $   70,116  

 —  
 (1,835) 

 (3,168) 
 918  

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred 

tax liabilities at December 31, 2017 and 2016 are reflected below: 

Deferred tax assets: 

Loans receivable, principally due to the allowance for probable loan losses. . . . . . . . . . . . .     $   14,546   $   24,315  
Other real estate owned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 3,652  
Impairment charges on available-for-sale securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 6,086  
 137  
Accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 14,791  
Net unrealized losses on available for sale investment securities . . . . . . . . . . . . . . . . . . . . . .    
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 6,917  
 55,898  
Total deferred tax assets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 2,053  
 844  
 81  
 9,680  
 4,434  
 31,638  

Deferred tax liabilities: 

2017 

2016 

(Dollars in Thousands) 

Bank premises and equipment, principally due to differences on depreciation . . . . . . . . . . .    
Identified intangible assets and goodwill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Total deferred tax liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

    (19,837) 
    (21,386) 
    (16,300) 
    (57,523) 
Net deferred tax liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $   (5,193)  $   (1,625) 

    (10,940) 
    (13,417) 
    (12,474) 
    (36,831) 

The  net  deferred  tax  liability  of  $5,193,000  at  December  31,  2017  and  $1,625,000  at  December 31,  2016  is 

included in other liabilities in the consolidated statements of condition. 

In September 2014, the Company amended its 2012 federal income tax return as a result of a tax opinion obtained 
regarding  a  judgment  against  the  Company  paid  in  2012  afer  litigation  related  to  tax  matters  in  the  Company’s  2004 
acquidition  of  Local  Financial  Corporation  (“LFIN”).    Litigation  against  the  Company  was  initiated  by  the  former 
controlling shareholders of LFIN with respect to such tax matters.  On March 5, 2010, a judgment against the Company 
was entered on a jury verdict in the U.S. District Court for the Western District of Oklahoma.  The Company subsequently 
appealed the decision and on January 5, 2012, the United States Court of Appeals Tenth Circuit affirmed the judgment 
and it became final and unappealable and the Company recorded the majority of the payment of the judgment as a non-
deductible expense in the Company’s 2012 federal income tax return.  The Company engaged legal counsel to review the 

67 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
           
           
 
  
  
  
  
  
  
  
  
  
  
 
   
 
   
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

deductibility of the judgment and, upon receiving the tax opinion, amended the 2012 tax return to report the payment as a 
deductible  expense.    The  Internal  Revenue  Service  examined  the  amended  return  and  at  the  conclusion  of  the  exam, 
allowed a certain portion of the judgment to be deducted as a necessary and ordinary business expense, resulting in a tax 
refund of $4.9 million.   

On December 22, 2017, the Tax Cuts and Jobs Act (“Tax Act”) was signed into law.  The Tax Act materially 
changes U.S. corporate income tax rates, among other things.  The Company was in a net deferred tax liability position at 
the  time  the  Tax  Act  was  enacted  and  subsequently  revalued  the  carrying  value  of  the  net  deferred  liability  and  its 
components to the new 21% effective tax rate.  The change in the tax rate resulted in a net benefit to the Company of 
$3,168,000 and is included as a reduction to income tax expense in the consolidated income statement.  

(15) Stock Options 

On April 5, 2012, the Board of Directors adopted the 2012 International Bancshares Corporation Stock Option 
Plan (the “2012 Plan”). There are 800,000 shares available for stock option grants under the 2012 Plan. Under the 2012 
Plan, both qualified incentive stock options (“ISOs”) and non-qualified stock options (“NQSOs”) may be granted. Options 
granted  may  be  exercisable  for  a  period  of  up  to  10 years  from  the  date  of  grant,  excluding  ISOs  granted  to  10% 
shareholders, which may be exercisable for a period of up to only five years. As of December 31, 2017, 216,400 shares 
were available for future grants under the 2012 Plan. 

The fair value of each option award granted under the plan is estimated on the date of grant using a Black-Scholes-
Merton option valuation model that uses the assumptions noted in the following table. Expected volatility is based on the 
historical  volatility  of  the  price  of  the  Company’s  stock.  The  Company  uses  historical  data  to  estimate  the  expected 
dividend yield and employee termination rates within the valuation model. The expected term of options is derived from 
historical exercise behavior. The risk-free rate for periods within the contractual life of the option is based on the U.S. 
Treasury yield curve in effect at the time of grant. 

Expected Life (Years) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Interest rate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 —  
 — %   
 — %   
 — %   

     2017 (1) 

2016 
 7.61  
 2.50 % 
 1.50 % 
 41.32 % 

(1)  No stock options were granted during the twelve months ended December 31, 2017. 

68 

 
 
 
 
 
 
 
 
     
  
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

A summary of option activity under the stock option plans for the twelve months ended December 31, 2017 is as 

follows: 

  Weighted 
average 
exercise 
price 

  Number of   
options 

     Weighted            
average 
  remaining 
  contractual   
  term (years)  

  Aggregate 
intrinsic 
value ($) 
  (in Thousands)  

Options outstanding at December 31, 2016 . . . . . . . . . . . . . . . . . . . .       800,502   $ 
Plus: Options granted  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
Less: 

 —  

Options exercised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       108,885  
Options expired  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
 2,188  
Options forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     
 21,263  
Options outstanding at December 31, 2017 . . . . . . . . . . . . . . . . . . . .       668,166  

19.43  
 —  

13.34  
10.40  
20.62  
20.41   

5.54 

 $ 

 12,887  

Options fully vested and exercisable at December 31, 2017 . . . . . .       283,472   $ 

18.62   

4.46 

 $ 

 5,975  

Stock-based  compensation  expense  included  in  the  consolidated  statements  of  income  for  the  years  ended 
December  31,  2017,  2016  and  2015  was  approximately  $903,000,  $1,082,000  and  $1,172,000,  respectively.  As  of 
December 31, 2017, there was approximately $1,418,000 of total unrecognized stock-based compensation cost related to 
non-vested options granted under the Company plans that will be recognized over a weighted average period of 1.4 years. 

Other information pertaining to option activity during the twelve month period ending December 31, 2017, 2016 

and 2015 is as follows: 

Twelve Months Ended December 31,  

2017(1) 

2016 

2015 

Weighted average grant date fair value of stock 
options granted  . . . . . . . . . . . . . . . . . . . . . . . .    
Total fair value of stock options vested . . . . . . .   
Total intrinsic value of stock options exercised   

 —    $ 

   $
 9.42  
  $ 1,182,000   $  1,015,000   $   872,000  
 792,000   $   781,000  
  $ 2,595,000   $ 

 8.74    $ 

(1)  No stock options were granted during the twelve months ended December 31, 2017. 

(16) Long Term Restricted Stock Units 

As a participant in the Troubled Asset Relief Program Capital Purchase Program (the “CPP”) until November 28, 
2012,  the  Company  was  subject  to  certain  compensation  restrictions,  which  included  a  prohibition  on  the  payment  or 
accrual  of  any  bonuses  (including  equity-based  incentive  compensation)  to  certain  officers  and  employees  except  for 
awards of CPP-compliant long- term restricted stock and stock units. 

On  December 18,  2009,  the  Company’s  board  of  directors  (the  “Board”)  adopted  the  2009  International 
Bancshares Corporation Long-Term Restricted Stock Unit Plan (the “Plan”) to give the Company additional flexibility in 
the  compensation  of  its  officers,  employees,  consultants  and  advisors  in  compliance  with  all  applicable  laws  and 
restrictions. 

The Plan authorizes the Company to issue Restricted Stock Units (“RSUs”) to officers, employees, consultants 
and advisors of the Company and its subsidiaries. The Plan provides that RSUs shall be issued by a committee of the Board 

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

appointed by the Board from time to time consisting of at least two (2) members of the Board, each of whom is both a 
non-employee director and an outside director. On December 18, 2009, the Board adopted resolutions creating the Long-
Term Restricted Stock Unit Plan Committee to administer the Plan. RSUs issued under the Plan are not equity and are 
payable only in cash. The Plan provides for both the issuance of CPP-compliant long-term RSUs as well as RSUs that are 
not CPP-compliant.  No grants have been made under the Plan since December 2012 and there are currently no outstanding 
grants under the Plan.  

(17) Commitments, Contingent Liabilities and Other Matters 

The Company leases portions of its banking premises and equipment under operating leases. Total rental expense 
for  the  years  ended  December  31,  2017,  2016  and  2015  were  approximately  $5,258,000,  $5,870,000  and  $6,200,000, 
respectively. Future minimum lease payments due under non-cancellable operating leases at December 31, 2017 were as 
follows: 

Fiscal year ending: 

2018  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 
2019  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
2020  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
2021  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
2022  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 

Total 
  (in thousands)  
 3,563  
 3,376  
 3,087  
 2,037  
 494  
 180  
 12,737  

It is expected that certain leases will be renewed, as these leases expire. Aggregate future minimum rentals to be 

received under non-cancellable sub-leases greater than one year at December 31, 2017 were $92,416,000. 

Cash  of  approximately  $116,129,000  and  $111,353,000  at  December  31,  2017  and  2016,  respectively,  was 

maintained to satisfy regulatory reserve requirements. 

The Company is involved in various legal proceedings that are in various stages of litigation. The Company has 
determined, based on discussions with its counsel that any material loss in such actions, individually or in the aggregate, 
is remote or the damages sought, even if fully recovered, would not be considered material to the consolidated statements 
of  condition  and  related  statements  of  income,  comprehensive  income,  shareholders’  equity  and  cash  flows  of  the 
Company. However, many of these matters are in various stages of proceedings and further developments could cause 
management to revise its assessment of these matters. 

(18) Transactions with Related Parties 

In the ordinary course of business, the subsidiaries of the Company make loans to directors and executive officers 
of the Corporation, including their affiliates, families and companies in which they are principal owners. In the opinion of 
management,  these  loans  are  made  on  substantially  the  same  terms,  including  interest  rates  and  collateral,  as  those 
prevailing  at  the  time  for  comparable  transactions  with  other  persons  and  do  not  involve  more  than  normal  risk  of 
collectability or present other unfavorable features. The aggregate amounts receivable from such related parties amounted 
to approximately $27,626,000 and $26,547,000 at December 31, 2017 and 2016, respectively. 

70 

 
 
 
 
 
 
    
 
 
  
  
  
  
  
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

(19) Financial Instruments with Off-Statement of Condition Risk and Concentrations of Credit Risk 

In the normal course of business, the bank subsidiaries are party to financial instruments with off-statement of 
condition risk to meet the financing needs of their customers. These financial instruments include commitments to their 
customers.  These  financial  instruments  involve,  to  varying  degrees,  elements  of  credit  risk  in  excess  of  the  amounts 
recognized  in the  consolidated  statement  of  condition.  The  contract  amounts  of  these  instruments  reflect  the  extent of 
involvement the bank subsidiaries have in particular classes of financial instruments. At December 31, 2017, the following 
financial amounts of instruments, whose contract amounts represent credit risks, were outstanding: 

Commitments to extend credit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        $  2,795,137,000 
 20,643,000 
Credit card lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Standby letters of credit  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 95,402,000 
Commercial letters of credit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 4,145,000 

The Company enters into a standby letter of credit to guarantee performance of a customer to a third party. These 
guarantees  are  primarily  issued  to  support  public  and  private  borrowing  arrangements.  The  credit  risk  involved  is 
represented by the contractual amounts of those instruments. Under the standby letters of credit, the Company is required 
to make payments to the beneficiary of the letters of credit upon request by the beneficiary so long as all performance 
criteria  have  been  met.  At  December 31,  2017,  the  maximum  potential  amount  of  future  payments  is  approximately 
$95,402,000. At December 31, 2017, the fair value of these guarantees is not significant. Unsecured letters of credit totaled 
approximately $35,409,000 and $40,738,000 at December 31, 2017 and 2016, respectively. 

The Company enters into commercial letters of credit on behalf of its customers which authorize a third party to 
draw drafts on the Company up to a stipulated amount and with specific terms and conditions. A commercial letter of 
credit is a conditional commitment on the part of the Company to provide payment on drafts drawn in accordance with the 
terms of the commercial letter of credit. 

The bank subsidiaries’ exposure to credit loss in the event of nonperformance by the other party to the above 
financial instruments is represented by the contractual amounts of the instruments. The bank subsidiaries use the same 
credit policies in making commitments and conditional obligations as they do for on-statement of condition instruments. 
The  bank  subsidiaries  control  the  credit  risk  of  these  transactions  through  credit  approvals,  limits  and  monitoring 
procedures. Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any 
condition established in the contract. Commitments generally have fixed expiration dates normally less than one year or 
other termination clauses and may require the payment of a fee. Since many of the commitments are expected to expire 
without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The bank 
subsidiaries  evaluate  each  customer’s  credit-worthiness  on  a  case-by-case  basis.  The  amount  of  collateral  obtained,  if 
deemed necessary by the subsidiary banks upon extension of credit, is based on management’s credit evaluation of the 
customer.  Collateral  held  varies,  but  may  include  residential  and  commercial  real  estate,  bank  certificates  of  deposit, 
accounts receivable and inventory. 

The bank subsidiaries make commercial, real estate and consumer loans to customers principally located in South, 
Central and Southeast Texas and the State of Oklahoma. Although the loan portfolio is diversified, a substantial portion 
of its debtors’ ability to honor their contracts is dependent upon the economic conditions in these areas, especially in the 
real estate and commercial business sectors. 

(20) Capital Requirements 

On December 23, 2008, as part of the Troubled Asset Relief Program Capital Purchase Program of the United States 
Department of the Treasury (“Treasury”), the Company issued to the Treasury a warrant to purchase 1,326,238 shares of the 
Company’s common stock at a price per share of $24.43 and with a term of ten years (the “Warrant”).  

71 

 
 
 
 
 
  
  
  
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

On June 12, 2013, the U.S. Treasury sold the Warrant to a third party. As of February 20, 2016, the Warrant is 
still outstanding. Adjustments to the $24.43 per share Exercise Price of the Warrant will be made if the Company pays 
cash dividends in excess of 33 cents per semi-annual period or makes certain other shareholder distributions before the 
Warrants expires on December 23, 2018. 

Bank regulatory agencies limit the amount of dividends, which the bank subsidiaries can pay the Corporation, 
through IBC Subsidiary Corporation, without obtaining prior approval from such agencies. At December 31, 2017, the 
subsidiary banks could pay dividends of up to $731,850,000 to the Corporation without prior regulatory approval and 
without adversely affecting their “well-capitalized” status under regulatory capital rules in effect at December 31, 2017. 
In addition to legal requirements, regulatory authorities also consider the adequacy of the bank subsidiaries’ total capital 
in  relation  to  their  deposits  and  other  factors.  These  capital  adequacy  considerations  also  limit  amounts  available  for 
payment of dividends. The Company historically has not allowed any subsidiary bank to pay dividends in such a manner 
as to impair its capital adequacy. 

The Company and the bank subsidiaries are subject to various regulatory capital requirements administered by 
the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly 
additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s 
consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective 
action, the Company must meet specific capital guidelines that involve quantitative measures of the Company’s assets, 
liabilities, and certain off-statement of condition items as calculated under regulatory accounting practices. The Company’s 
capital  amounts  and  classification  are  also  subject  to  qualitative  judgments  by  the  regulators  about  components,  risk 
weightings, and other factors. 

Current  quantitative  measures  established  by  regulation  to  ensure  capital  adequacy  require  the  Company  to 
maintain minimum amounts and ratios (set forth in the table on the following page) of Total and Tier 1 capital to risk-
weighted assets and of Tier 1 capital to average assets. Management believes, as of December 31, 2017, that the Company 
and each of the bank subsidiaries met all capital adequacy requirements to which they are subject. 

In July 2013, the Federal Deposit Insurance Corporation (“FDIC”) and other regulatory bodies established a new, 
comprehensive capital framework for U.S. banking organizations, consisting of minimum requirements that increase both 
the quantity and quality of capital held by banking organizations. The final rules are a result of the implementation of the 
BASEL III capital reforms and various Dodd-Frank Act related capital provisions. Consistent with the Basel international 
framework, the rules include a new minimum ratio of Common Equity Tier 1 (“CET1”) to risk-weighted assets of 4.5% 
and a CET1 capital conservation buffer of 2.5% of risk-weighted assets.  The capital conservation buffer began phasing-
in on January 1, 2016 at .625% and increases each year until January 1, 2019, when the Company will be required to have 
a 2.5% capital conservation buffer, effectively resulting in a minimum ratio of CET1 capital to risk-weighted assets of at 
least 7% upon full implementation. The rules also raised the minimum ratio of Tier 1 capital to risk-weighted assets from 
4% to 6% and include a minimum leverage ratio of 4% for all banking organizations. Regarding the quality of capital, the 
new rules emphasize CET1 capital and implements strict eligibility criteria for regulatory capital instruments. The new 
rules also improve the methodology for calculating risk-weighted assets to enhance risk sensitivity. The new rules are 
subject to a four year phase in period for mandatory compliance and the Company was required to begin to phase in the 
new rules beginning on January 1, 2015.  Management believes, as of December 31, 2017, that the Company and each of 
the bank subsidiaries will meet all capital adequacy requirements once the capital conservation is fully phased-in. 

On November 21, 2017, the OCC, the Federal Reserve and the FDIC finalized a proposed rule that extends the 
current treatment under the regulatory capital rules for certain regulatory capital deductions and risk weights and certain 
minority interest requirements, as they apply to banking organizations that are not subject to the advanced approaches 
capital rules.  Effective January 1, 2018, the rule also pauses the full transition to the Basel III treatment of mortgage 
servicing assets, certain deferred tax assets, investments in the capital of unconsolidated financial institutions and minority 

72 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

interests.  The agencies are also considering whether to make adjustments to the capital rules in response to CECL (the 
FASB Standard relating to current expected credit loss) and its potential impact on regulatory capital. 

On December 7, 2017, the Basel Committee on Banking Supervision unveiled the latest round of its regulatory 
capital framework, commonly called “Basel IV.”  The framework makes changes to the capital framework first introduced 
as “Basel III” in 2010.  The committee targeted 2022-2027 as the timeframe for implementation by regulators in individual 
countries, including the U.S. federal bank regulatory agencies (after notice and comment). 

The aforementioned capital conservation buffer is designed to absorb losses during periods of economic stress. 
Banking institutions with a ratio of CET1 capital to risk-weighted assets above the minimum but below the conservation 
buffer will face constraints on dividends, equity repurchases and compensation based on the amount of the shortfall. 

As of December 31, 2017,  capital  levels  at  the  Company  exceed  all  capital  adequacy  requirements  under  the 
Basel III Capital Rules as currently applicable to the Company. Based on the ratios presented below, capital levels as of 
December 31, 2017 at the Company exceed the minimum levels necessary to be considered “well capitalized.” 

As  of  December 31,  2017,  the  most  recent  notification  from  the  Federal  Deposit  Insurance  Corporation 
categorized all the bank subsidiaries as well-capitalized under the regulatory framework for prompt corrective action. To 
be categorized as “well-capitalized,” the Company and the bank subsidiaries must maintain minimum Total risk-based, 
Tier 1 risk based, and Tier 1 leverage ratios as set forth in the table. There are no conditions or events since that notification 
that  management  believes  have  changed  the  categorization  of  the  Company  or  any  of  the  bank  subsidiaries  as  well-
capitalized. 

73 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The Company’s and the bank subsidiaries’ actual capital amounts and ratios for 2017 under current guidelines 

are presented in the following table: 

Actual 

For Capital Adequacy 
Purposes 
Phase In Schedule 

To Be Well-Capitalized 

  Under Prompt Corrective 

Action Provisions 

  Amount 

  Ratio 

Amount 

Ratio 

Amount 

Ratio 

  (greater than   (greater than   (greater than   (greater than   
  or equal to)    
  or equal to) 

  or equal to) 

  or equal to) 

(Dollars in Thousands) 

As of December 31, 2017: 
Common Equity Tier 1 (to Risk Weighted Assets): 

Consolidated . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  1,584,665     17.11  %  $ 
International Bank of Commerce, Laredo . . . . . . . .   
International Bank of Commerce, Oklahoma  . . . . .   
International Bank of Commerce, Brownsville . . . .   
International Bank of Commerce, Zapata . . . . . . . .   
Commerce Bank . . . . . . . . . . . . . . . . . . . . . . . . . .   

    1,119,173     17.10   
 169,279    13.41   
 165,034     25.94   
 66,406     30.58   
 79,330     33.22   

Total Capital (to Risk Weighted Assets): 

Consolidated . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  1,807,107     19.51  %  $ 
International Bank of Commerce, Laredo . . . . . . . .   
International Bank of Commerce, Oklahoma  . . . . .   
International Bank of Commerce, Brownsville . . . .   
International Bank of Commerce, Zapata . . . . . . . .   
Commerce Bank . . . . . . . . . . . . . . . . . . . . . . . . . .   

    1,173,068     17.93   
 178,057    14.11   
 170,613     26.82   
 68,718     31.64   
 81,278     34.03   

Tier 1 Capital (to Risk Weighted Assets): 

Consolidated . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  1,734,595     18.73  %  $ 
International Bank of Commerce, Laredo . . . . . . . .   
International Bank of Commerce, Oklahoma  . . . . .   
International Bank of Commerce, Brownsville . . . .   
International Bank of Commerce, Zapata . . . . . . . .   
Commerce Bank . . . . . . . . . . . . . . . . . . . . . . . . . .   

    1,119,173     17.10   
 169,279    13.41   
 165,034     25.94   
 66,406     30.58   
 79,330     33.22   

Tier 1 Capital (to Average Assets): 

Consolidated . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  1,734,595     14.62  %  $ 
International Bank of Commerce, Laredo . . . . . . . .   
International Bank of Commerce, Oklahoma  . . . . .   
International Bank of Commerce, Brownsville . . . .   
International Bank of Commerce, Zapata . . . . . . . .   
Commerce Bank . . . . . . . . . . . . . . . . . . . . . . . . . .   

    1,119,173     13.44   
 169,279    11.31   
 165,034     17.17   
 66,406     14.20   
 79,330     14.56   

 532,579    
 376,245    
 72,586   
 36,583    
 12,487    
 13,733    

 856,757    
 605,263    
 116,769   
 58,851    
 20,088    
 22,092    

 671,512    
 474,395    
 91,521   
 46,127    
 15,745    
 17,316    

 474,675    
 333,166    
 59,854   
 38,440    
 18,701    
 21,789    

$ 

5.750  %  
5.750   
5.750   
5.750   
5.750   
5.750   

$ 

9.250  %  
9.250   
9.250   
9.250   
9.250   
9.250   

7.250  %     
$ 
7.250   
7.250   
7.250   
7.250   
7.250   

4.00  %  $ 
4.00   
4.00   
4.00   
4.00   
4.00   

N/A    
 425,320    
 82,054   
 41,355    
 14,116    
 15,524    

N/A    
 654,339    
 126,237   
 63,623    
 21,717    
 23,884    

N/A    
 523,471    
 100,989   
 50,899    
 17,374    
 19,107    

N/A    
 416,458    
 74,818   
 48,050    
 23,376    
 27,236    

N/A   
6.50  %
6.50   
6.50   
6.50   
6.50   

N/A   
10.00  %
10.00   
10.00   
10.00   
10.00   

N/A   
8.00  %
8.00   
8.00   
8.00   
8.00   

N/A   
5.00  %
5.00   
5.00   
5.00   
5.00   

74 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
  
 
 
 
 
  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
           
          
      
     
         
      
     
         
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
  
  
  
  
  
  
  
  
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
  
  
  
  
  
  
  
  
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
  
  
  
  
  
  
  
  
  
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
 
  
  
  
  
  
  
  
  
  
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The Company’s and the bank subsidiaries’ actual capital amounts and ratios for 2016 are also presented in the 

following table: 

Actual 

For Capital Adequacy 
Purposes 

To Be Well-Capitalized 

  Under Prompt Corrective 

Action Provisions 

  Amount 

  Ratio 

Amount 

Ratio 

Amount 

Ratio 

  (greater than   (greater than   (greater than   (greater than   
  or equal to)    
  or equal to) 

  or equal to) 

  or equal to) 

(Dollars in Thousands) 

As of December 31, 2016: 
Common Equity Tier 1 (to Risk Weighted Assets): 

Consolidated . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  1,468,662     16.95  %  $ 
International Bank of Commerce, Laredo . . . . . . . .   
International Bank of Commerce, Brownsville . . . .   
International Bank of Commerce, Zapata . . . . . . . .   
Commerce Bank . . . . . . . . . . . . . . . . . . . . . . . . . .   

    1,201,527     16.63   
 158,533     25.61   
 65,989     34.09   
 73,765     31.84   

 444,190    
 370,342    
 31,720    
 9,922    
 11,872    

Total Capital (to Risk Weighted Assets): 

Consolidated . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  1,687,501     19.47  %  $ 
International Bank of Commerce, Laredo . . . . . . . .   
International Bank of Commerce, Brownsville . . . .   
International Bank of Commerce, Zapata . . . . . . . .   
Commerce Bank . . . . . . . . . . . . . . . . . . . . . . . . . .   

    1,260,886     17.45   
 163,937     26.49   
 67,464     34.85   
 76,093     32.85   

 747,540    
 623,258    
 53,382    
 16,698    
 19,980    

Tier 1 Capital (to Risk Weighted Assets): 

Consolidated . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  1,618,935     18.68  %  $ 
International Bank of Commerce, Laredo . . . . . . . .   
International Bank of Commerce, Brownsville . . . .   
International Bank of Commerce, Zapata . . . . . . . .   
Commerce Bank . . . . . . . . . . . . . . . . . . . . . . . . . .   

    1,201,527     16.63   
 158,533     25.61   
 65,989     34.09   
 73,765     31.84   

 574,197    
 478,734    
 41,004    
 12,826    
 15,347    

Tier 1 Capital (to Average Assets): 

Consolidated . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  1,618,935     13.91  %  $ 
International Bank of Commerce, Laredo . . . . . . . .   
International Bank of Commerce, Brownsville . . . .   
International Bank of Commerce, Zapata . . . . . . . .   
Commerce Bank . . . . . . . . . . . . . . . . . . . . . . . . . .   

    1,201,527     12.50   
 158,533     16.91   
 65,989     13.87   
 73,765     13.05   

 465,438    
 384,342    
 37,509    
 19,029    
 22,607    

(21) Fair Value 

$ 

5.125  %  
5.125   
5.125   
5.125   
5.125   

N/A    
 469,701    
 40,230    
 12,584    
 15,058    

$ 

8.625  %  
8.625   
8.625   
8.625   
8.625   

N/A    
 722,618    
 61,892    
 19,360    
 23,166    

6.625  %     
6.625   
$ 
6.625   
6.625   
6.625   

N/A    
 578,094    
 49,514    
 15,488    
 18,532    

4.00  %  $ 
4.00   
4.00   
4.00   
4.00   

N/A    
 480,427    
 46,886    
 23,786    
 28,259    

N/A   
6.50  %
6.50   
6.50   
6.50   

N/A   
10.00  %
10.00   
10.00   
10.00   

N/A   
8.00  %
8.00   
8.00   
8.00   

N/A   
5.00  %
5.00   
5.00   
5.00   

ASC  Topic  820,  “Fair  Value  Measurements  and  Disclosures”  (“ASC  820”)  defines  fair  value,  establishes  a 
framework for measuring fair value in generally accepted accounting principles, and expands disclosures about fair value 
measurements. ASC 820 applies to all financial instruments that are being measured and reported on a fair value basis. 
ASC 820 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly 
transaction between market participants at the measurement date; it also establishes a fair value hierarchy that prioritizes 
the inputs used in valuation methodologies into the following three levels: 

•  Level 1 Inputs—Unadjusted quoted prices in active markets for identical assets or liabilities. 
•  Level 2  Inputs—Observable  inputs  other  than  Level 1  prices,  such  as  quoted  prices  for  similar  assets  or 
liabilities,  quoted  prices  in  markets  that  are  not  active;  or  other  inputs  that  are  observable  or  can  be 
corroborated by observable market data for substantially the full term of the assets or liabilities. 

•  Level 3 Inputs—Unobservable inputs that are supported by little or no market activity and that are significant 
to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose 
value is determined using pricing models, discounted cash flow methodologies, or other valuation techniques, 
as well as instruments for which the determination of fair value requires significant management judgment 
or estimation. 

75 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
            
         
      
     
         
      
     
         
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

A description of the valuation methodologies used for instruments measured at fair value, as well as the general 

classification of such instruments pursuant to the valuation hierarchy is set forth below. 

The following table represents financial instruments reported on the consolidated statements of condition at their 

fair value as of December 31, 2017 by level within the fair value measurement hierarchy. 

Fair Value Measurements at 
Reporting Date Using 
(in Thousands) 

  Quoted 
  Prices in   
Active 
  Markets for  
Identical   
Assets 
(Level 1)   

  Assets/Liabilities 
  Measured at 
Fair Value 
  December 31, 2017  

Significant 
Other 

Significant   
Observable    Unobservable  

Inputs 
(Level 2) 

Inputs 
(Level 3) 

Measured on a recurring basis: 
Assets: 
Available for sale securities 

Residential mortgage-backed securities . . . . . . . . . . . . . .    $ 
States and political subdivisions . . . . . . . . . . . . . . . . . . . .   
   Equity Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 3,891,233   $ 
 232,951  
 27,886  

 —   $  3,891,233   $ 
 —  
    27,886  

 232,951  
 —  

  $ 

 4,152,070   $  27,886   $  4,124,184   $ 

 —  
 —  
 —  
 —  

The following table represents financial instruments reported on the consolidated balance sheets at their fair value 

as of December 31, 2016 by level within the fair value measurement hierarchy. 

Fair Value Measurements at 
Reporting Date Using 
(in Thousands) 

  Quoted 
  Prices in 
Active 
  Markets for   
Identical 
Assets 
(Level 1) 

Significant 
Other 

  Observable 

Inputs 
(Level 2) 

  Assets/Liabilities 
  Measured at 
Fair Value 
  December 31, 2016  

  Significant   
  Unobservable  
Inputs 
(Level 3) 

Measured on a recurring basis: 
Assets: 
Available for sale securities 

Residential mortgage - backed securities . . . . . . . . . . . . .    $ 
States and political subdivisions . . . . . . . . . . . . . . . . . . . .   
Equity Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 3,894,470   $ 
 254,972  
 27,907  

 —   $  3,876,865   $ 
 —  
    27,907  

 254,972  
 —  

  $ 

 4,177,349   $  27,907   $  4,131,837   $ 

 17,605  
 —  
 —  
 17,605  

For the year ended December 31, 2017, investment securities available-for-sale are classified within level 2 of 
the valuation hierarchy, with the exception of certain equity investments that are classified within level 1. For the year 
ended December 31, 2016, the Company had certain securities classified within level 3 of the fair value hierarchy.  Those 
investments were sold in the first quarter of 2017.  For investments classified as level 2 in the fair value hierarchy, the 
Company obtains fair value measurements for investment securities from an independent pricing service. The fair value 
measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury 
yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the 
bond’s  terms  and  conditions,  among  other  things.  Investment  securities  classified  as  level 3  are  non-agency  

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

mortgage-backed  securities.  The  non-agency  mortgage-backed  securities  held  by  the  Company  are  traded  in  inactive 
markets and markets that have experienced significant decreases in volume and level of activity, as evidenced by few 
recent transactions, a significant decline or absence of new issuances, price quotations that are not based on comparable 
securities transactions and wide bid-ask spreads among other factors. As a result of the inability to use quoted market 
prices to determine fair value for these securities, the Company determined that fair value, as determined by level 3 inputs 
in the fair value hierarchy, is more appropriate for financial reporting and more consistent with the expected performance 
of the investments. For the investments classified within level 3 of the fair value hierarchy, the Company used a discounted 
cash flow model to determine fair value. Inputs in the model included both historical performance and expected future 
performance based on information currently available.   

Assumptions used in the discounted cash flow model as of December 31, 2016 for investment securities classified 
within  level 3 of  the fair value  hierarchy, were  applied  separately  to  those  portions of  the  bond where  the  underlying 
residential mortgage loans had been performing under original contract terms for at least the prior 24 months and those 
where the underlying residential mortgages had not been meeting the original contractual obligation for the same period. 
Unobservable inputs included in the model are estimates on future principal prepayment rates, and default and loss severity 
rates. For that portion of the bond where the underlying residential mortgage had been meeting the original contract terms 
for at least 24 months, the Company used the following estimates in the model: (i) a voluntary prepayment rate of 7%, 
(ii) a 1% default rate, (iii) a loss severity rate of 25%, and (iv) a discount rate of 13%. The assumptions used in the model 
for the rest of the bond included the following estimates: (i) a voluntary prepayment rate of 2%, (ii) a default rate of 4.5%, 
(iii) a loss severity rate that started at 60% for the first year (2012) then declines by 5% for the following four years (2013, 
2014, 2015, and 2016), and (iv) a discount rate of 13%. The estimates used in the model to determine fair value were based 
on observable historical data of the underlying collateral.  

The  following  table  presents  a  reconciliation  of  activity  for  such  mortgage-backed  securities  on  a  net  basis 

(Dollars in Thousands): 

Balance at December 31, 2016 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $  17,605  
 (798) 
 (21,904) 
 5,097  
 —  

Principal paydowns  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Sales of available for sale securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Reclassification of unrealized gains (losses) included in other comprehensive loss due to sale  . . . . . . . .   
Balance at December 31, 2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 

Certain financial instruments are measured at fair value on a nonrecurring basis. They are not measured at fair 
value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is 
evidence of impairment). 

77 

 
 
 
 
 
 
  
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

The following table represents financial instruments measured at fair value on a non-recurring basis as of and for 

the period ended December 31, 2017 by level within the fair value measurement hierarchy: 

Fair Value Measurements at Reporting 
Date Using 
(in thousands) 

  Quoted 
  Assets/Liabilities    Prices in 
Active 
  Measured at 
  Markets for  
Fair Value 
Identical 
Year ended 
Assets 
(Level 1) 

  December 31,  

2017 

  Significant 
Other 

  Significant 

  Observable    Unobservable   

Inputs 
(Level 2) 

Inputs 
(Level 3) 

  Net Provision 
(Credit) 
During 
Period 

Measured on a non-recurring basis: 
Assets: 
Impaired loans . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Other real estate owned . . . . . . . . . . . . . . . . . . . . .    

 11,210   $ 
 2,000  

 —   $ 
 —  

 —   $ 
 —  

 11,210   $ 
 2,000  

 2,138  
 710  

The following table represents financial instruments measured at fair value on a non-recurring basis as of and for 

the year ended December 31, 2016 by level within the fair value measurement hierarchy: 

Fair Value Measurements at Reporting 
Date Using 
(in thousands) 

  Quoted 
  Assets/Liabilities   Prices in 
Active 
  Measured at 
  Markets 
Fair Value 
  for Identical
Year ended 
Assets 
(Level 1) 

  December 31,  

2016 

  Significant 
Other 

  Net (Credit)  
  Significant 
  Observable    Unobservable    Provision   
Inputs 
(Level 3) 

Inputs 
(Level 2) 

During 
Period 

Measured on a non-recurring basis: 
Assets: 
Impaired loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Other real estate owned . . . . . . . . . . . . . . . . . . . . . .    

 38,794   $ 
 9,445  

 —   $ 
 —  

 —   $ 
 —  

 38,794   $   19,699  
 2,351  
 9,445  

The Company’s assets measured at fair value on a non-recurring basis are limited to impaired loans and other 
real estate owned.  Impaired loans are classified within level 3 of the valuation hierarchy.  The fair value of impaired loans 
is  derived  in  accordance  with  FASB  ASC  310,  “Receivables”.    Impaired  loans  are  primarily  comprised  of  collateral-
dependent  commercial  loans.      Understanding  that  as  the  primary  sources  of  loan  repayments  decline,  the  secondary 
repayment source comes into play and correctly evaluating the fair value of that secondary source, the collateral, becomes 
even more important.  Re-measurement of the impaired loan to fair value is done through a specific valuation allowance 
included in the allowance for probable loan losses.  The fair value of impaired loans is based on the fair value of the 
collateral, as determined through either an appraisal or evaluation process.  The basis for the Company’s appraisal and 
appraisal  review  process  is  based  on  regulatory  guidelines  and  strives  to  comply  with  all  regulatory  appraisal  laws, 
regulations and the Uniform Standards of Professional Appraisal Practice. All appraisals and evaluations are “as is” (the 
property’s highest and best use) valuations based on the current conditions of the property/project at that point in time.  
The determination of the fair value of the collateral is based on the net realizable value, which is the appraised value less 
any closing costs, when applicable.  As of December 31, 2017, the Company had approximately $53,267,000 of impaired 
commercial  collateral  dependent  loans,  of  which  approximately  $18,585,000  had  an  appraisal  performed  within  the 
immediately preceding twelve months and of which approximately $0 had an evaluation performed within the immediately 
preceding  twelve  months.  As  of  December 31,  2016,  the  Company  had  approximately  $38,108,000  of  impaired 
commercial  collateral  dependent  loans,  of  which  approximately  $26,162,000  had  an  appraisal  performed  within  the 

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INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

immediately preceding twelve months and of which approximately $6,836,000 had an evaluation performed within the 
immediately preceding twelve months. 

The determination to either seek an appraisal or to perform an evaluation begins in weekly credit quality meetings, 
where  the  committee  analyzes  the  existing  collateral  values  of  the  impaired  loans  and  where  obsolete  appraisals  are 
identified.  In order to determine whether the Company would obtain a new appraisal or perform an internal evaluation to 
determine the fair value of the collateral, the credit committee reviews the existing appraisal to determine if the collateral 
value is reasonable in view of the current use of the collateral and the economic environment related to the collateral.  If 
the analysis of the existing appraisal does not find that the collateral value is reasonable under the current circumstances, 
the  Company  would  obtain  a  new  appraisal  on  the  collateral  or  perform  an  internal  evaluation  of  the  collateral.    The 
ultimate decision to get a new appraisal rests with the independent credit administration group.  A new appraisal is not 
required if an internal evaluation, as performed by in-house experts, is able to appropriately update the original appraisal 
assumptions to reflect current market conditions and provide an estimate of the collateral’s market value for impairment 
analysis.  The internal evaluations must be in writing and contain sufficient information detailing the analysis, assumptions 
and conclusions and they must support performing an evaluation in lieu of ordering a new appraisal. 

Other real estate owned is comprised of real estate acquired by foreclosure and deeds in lieu of foreclosure. Other 
real estate owned is carried at the lower of the recorded investment in the property or its fair value less estimated costs to 
sell such property (as determined by independent appraisal) within level 3 of the fair value hierarchy. Prior to foreclosure, 
the  value  of  the  underlying  loan  is  written  down  to  the  fair  value  of  the  real  estate  to  be  acquired  by  a  charge  to  the 
allowance for probable loan losses, if necessary. The fair value is reviewed periodically and subsequent write downs are 
made accordingly through a charge to operations. Other real estate owned is included in other assets on the consolidated 
financial  statements.  For  the  twelve  months  ended  December 31,  2017,  December 31,  2016  and  December  31,  2015, 
respectively  the  Company  recorded  approximately  $30,000,  $381,000  and  $696,000  in  charges  to  the  allowance  for 
probable  loan  losses  in  connection  with  loans  transferred  to  other  real  estate  owned.  For  the  twelve  months  ended 
December  31,  2017,  December 31,  2016  and  December 31,  2015,  respectively,  the  Company  recorded  approximately 
$710,000, $2,351,000 and $1,023,000 in adjustments to fair value in connection with other real estate owned. 

The fair value estimates, methods, and assumptions for the Company’s financial instruments at December 31, 

2017 and December 31, 2016 are outlined below. 

Cash and Cash Equivalents 

For these short-term instruments, the carrying amount is a reasonable estimate of fair value. 

Investment securities held-to-maturity 

The carrying amounts of investments held-to-maturity approximate fair value. 

Investment Securities 

For investment securities, which include U.S. Treasury securities, obligations of other U.S. government agencies, 
obligations of states and political subdivisions and mortgage pass through and related securities, fair values are from an 
independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market 
spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment 
speeds,  credit  information  and  the  bond’s  terms  and  conditions,  among  other  things.  See  disclosures  of  fair  value  of 
investment securities in Note 2. 

79 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

Loans 

Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by 
type such as commercial, real estate and consumer loans as outlined by regulatory reporting guidelines. Each category is 
segmented into fixed and variable interest rate terms and by performing and non-performing categories. 

For variable rate performing loans, the carrying amount approximates the fair value. For fixed rate performing 
loans,  except  residential  mortgage  loans,  the  fair  value  is  calculated  by  discounting  scheduled  cash  flows  through  the 
estimated maturity using estimated market discount rates that reflect the credit and interest rate risk inherent in the loan. 
For  performing  residential  mortgage  loans,  fair  value  is  estimated  by  discounting  contractual  cash  flows  adjusted  for 
prepayment estimates using discount rates based on secondary market sources or the primary origination market. Fixed 
rate performing loans are within Level 3 of the fair value hierarchy. At December 31, 2017, and December 31, 2016, the 
carrying amount of fixed rate performing loans was $1,505,531,000 and $1,411,272,000, respectively, and the estimated 
fair value was $1,454,434,000 and $1,375,807,000, respectively. 

Accrued Interest 

The carrying amounts of accrued interest approximate fair value. 

Deposits 

The fair value of deposits with no stated maturity, such as non-interest bearing demand deposit accounts, savings 
accounts and interest bearing demand deposit accounts, was equal to the amount payable on demand as of December 31, 
2017 and December 31, 2016. The fair value of time deposits is based on the discounted value of contractual cash flows. 
The discount  rate  is  based on  currently  offered  rates.  Time  deposits  are  within  Level 3 of  the  fair  value  hierarchy.  At 
December 31,  2017  and  December 31,  2016,  the  carrying  amount  of  time  deposits  was  $2,056,506,000  and 
$2,248,310,000, respectively, and the estimated fair value was $2,058,621,000 and $2,247,648,000, respectively. 

Securities Sold Under Repurchase Agreements 

Securities sold under repurchase agreements include both short and long-term maturities. Due to the contractual 
terms  of  the  short-term  instruments,  the  carrying  amounts  approximated  fair  value  at  December 31,  2017  and 
December 31,  2016.  The  fair  value  of  the  long-term  instruments  is  based  on  established  market  spread  using  option 
adjusted  spreads  methodology.  Long-term  repurchase  agreements  are  within  level 3  of  the  fair  value  hierarchy.  At 
December 31, 2017 and December 31, 2016, respectively, the carrying amount of long-term repurchase agreements was 
$100,000,000 and $300,000,000 and the estimated fair value was $99,504,000 and $289,324,000, respectively. 

Junior Subordinated Deferrable Interest Debentures 

The company currently has floating rate junior subordinated deferrable interest debentures outstanding. Due to 
the  contractual  terms  of  the  floating  rate  junior  subordinated  deferrable  interest  debentures,  the  carrying  amounts 
approximated fair value at December 31, 2017 and December 31, 2016. 

Other Borrowed Funds 

The company currently has short and long-term borrowings issued from the Federal Home Loan Bank (“FHLB”). 
Due to the contractual terms of the short-term borrowings, the carrying amounts approximated fair value at December 31, 
2017 and December 31, 2016. The long-term borrowings outstanding at December 31, 2017 are fixed-rate borrowings and 
the fair value is based on established market spreads for similar types of borrowings.  The fixed-rate long-term borrowings 

80 

INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

are included in Level 2 of the fair value hierarchy.  At December 31, 2017, the carrying amount of the fixed-rate long-
term FHLB borrowings was $250,000,000 and the estimated fair value was $249,728,000.   

Commitments to Extend Credit and Letters of Credit 

Commitments to extend credit and fund letters of credit are principally at current interest rates and therefore the 

carrying amount approximates fair value. 

Limitations 

Fair value estimates are made at a point in time, based on relevant market information and information about the 
financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one 
time the Company’s entire holdings of a particular financial instrument. Because no market exists for a significant portion 
of  the  Company’s  financial  instruments,  fair  value  estimates  are  based  on  judgments  regarding  future  expected  loss 
experience,  current  economic  conditions,  risk  characteristics  of  various  financial  instruments  and  other  factors.  These 
estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be 
determined with precision. Changes in assumptions could significantly affect the estimates. 

Fair  value  estimates  are  based  on  existing  on-and  off-statement  of  condition  financial  instruments  without 
attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered 
financial instruments. Other significant assets and liabilities that are not considered financial assets or liabilities include 
the bank premises and equipment and core deposit value. In addition, the tax ramifications related to the effect of fair value 
estimates have not been considered in the above estimates. 

81 

 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

(22) International Bancshares Corporation (Parent Company Only) Financial Information 

Statements of Condition 

(Parent Company Only) 

December 31, 2017 and 2016 

(Dollars in Thousands) 

ASSETS 

2017 

2016 

Cash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 
Other investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Investment in subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 18,555  
 94,908  
   1,787,120  
 1,098  
Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  2,012,659   $  1,901,681  

 18,398   $ 
 92,620  
   1,878,521  
 23,120  

Liabilities: 

LIABILITIES AND SHAREHOLDERS’ EQUITY 

Junior subordinated deferrable interest debentures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 
Due to IBC Trading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Total liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 160,416   $ 
 21  
 13,242  
 173,679  

 160,416  
 21  
 16,577  
 177,014  

Shareholders’ equity: 

Common shares  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Surplus  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Retained earnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Accumulated other comprehensive (loss) income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 95,910  
 169,567  
   1,777,963  
 (26,697) 
   2,016,743  
    (292,076) 
Less cost of shares in treasury  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Total shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
   1,724,667  
Total liabilities and shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $  2,012,659   $  1,901,681  

 96,019  
 171,816  
   1,891,805  
 (28,397) 
   2,131,243  
    (292,263) 
   1,838,980  

82 

 
 
 
 
 
 
 
 
 
 
    
    
 
 
   
 
   
 
  
  
  
  
 
   
 
   
 
 
   
 
   
 
  
  
  
  
  
  
 
   
 
   
 
  
  
  
  
  
  
 
 
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

(23) International Bancshares Corporation (Parent Company Only) Financial Information 

Statements of Income 

(Parent Company Only) 

Years ended December 31, 2017, 2016 and 2015 

(Dollars in Thousands) 

Income: 

Dividends from subsidiaries  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 
Interest income on notes receivable  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Interest income on other investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Total income. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 64,600   $ 
 —  
 8,100  
 26  
 72,726  

 84,432   $ 
 2  
 8,958  
 255  
 93,647  

 51,575  
 7  
 5,738  
 3,442  
 60,762  

Expenses: 

2017 

2016 

2015 

Interest expense (Debentures) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Total expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Income before federal income taxes and equity in undistributed net 
income of subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Income tax expense   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Income before equity in undistributed net income of subsidiaries . . . . . .    
Equity in undistributed net income of subsidiaries . . . . . . . . . . . . . . . . . . . . . .    

 53,626  
 386  
 53,240  
 83,486  
Net income   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $   157,436   $   133,932   $   136,726  

 5,392  
 5,648  
 11,040  

 4,600  
 3,637  
 8,237  

 4,099  
 3,037  
 7,136  

 61,686  
 (2,076) 
 63,762  
 93,674  

 85,410  
 311  
 85,099  
 48,833  

83 

 
 
 
 
 
 
 
 
 
 
 
 
 
    
    
    
 
 
   
 
   
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
 
   
 
   
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 

Notes to Consolidated Financial Statements (Continued) 

(24) International Bancshares Corporation (Parent Company Only) Financial Information 

Statements of Cash Flows 
(Parent Company Only) 

Years ended December 31, 2017, 2016 and 2015 
(Dollars in Thousands) 

2017 

2016 

2015 

Operating activities: 

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $   157,436   $   133,932   $   136,726  
Adjustments to reconcile net income to net cash provided by operating 
activities: 

Investment securities transactions, net . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Impairment charges on available for sale securities . . . . . . . . . . . . . . . . .   
Stock compensation expense  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
(Decrease) increase in other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Equity in undistributed net income of subsidiaries . . . . . . . . . . . . . . . . . .   
Net cash provided by operating activities  . . . . . . . . . . . . . . . . . . . . . . . . .   

Investing activities: 

Principal collected on mortgage-backed securities  . . . . . . . . . . . . . . . . . . .   
Net decrease in notes receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Increase in other assets and other investments . . . . . . . . . . . . . . . . . . . . . . .   
Net cash used in investing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   

 (23) 
 —  
 903  
 (3,453) 
 (93,674) 
 61,189  

 6,328  
 —  
 (25,348) 
 (19,020) 

 —  
 112  
 1,082  
 3,901  
 (48,833) 
 90,194  

 1,105  
 99  
 (27,834) 
 (26,630) 

 —  
 385  
 1,172  
 (1,998) 
 (83,486) 
 52,799  

 474  
 105  
 (1,830) 
 (1,251) 

Financing activities: 

Redemption of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Proceeds from stock transactions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Payments of cash dividends - common . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Purchase of treasury stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Net cash used in financing activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
(Decrease) increase in cash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Cash at beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   
Cash at end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $ 

 —  
 1,455  
 (43,594) 
 (187) 
 (42,326) 
 (157) 
 18,555  
 18,398   $ 

 (1,000) 
 549  
 (39,569) 
 (7,966) 
 (47,986) 
 15,578  
 2,977  
 18,555   $ 

 (14,000) 
 1,370  
 (38,515) 
 (6,678) 
 (57,823) 
 (6,275) 
 9,252  
 2,977  

84 

 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
  
 
   
 
   
 
   
 
 
   
 
   
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
   
 
   
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
 
   
 
   
 
   
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 
Condensed Quarterly Income Statements 
(Dollars in Thousands, Except Per Share Amounts) 

2017 

Fourth  
Quarter  

Third  
Quarter 

Second  
Quarter  

First  
Quarter 

Interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $   108,036   $   106,945   $   103,174   $ 
Interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Net interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Provision for probable loan losses . . . . . . . . . . . . . . . . . . . . . .    
Non-interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
Non-interest expense  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 10,895  
97,141  
 2,125  
 37,362  
 72,698  

 8,797  
94,377  
 805  
 33,963  
 73,713  

 9,993  
96,952  
 6,591  
 41,366  
 71,711  

 96,981  
 9,246  
87,735  
 1,700  
 37,715  
 75,626  

Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . .    

59,680  

60,016  

53,822  

48,124  

Income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 14,445  

 20,388  

 13,253  

 16,120  

Net income  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

 45,235   $ 

 39,628   $ 

 40,569   $ 

 32,004  

Per common share: 

Basic 

Net income   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

0.69    $ 

0.60    $ 

0.61    $ 

0.48   

Diluted 

Net income   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $ 

0.68    $ 

0.59    $ 

0.61    $ 

0.48   

85 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
     
     
     
  
 
 
 
 
 
  
 
 
  
 
 
 
  
 
 
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
 
 
  
 
 
 
  
 
 
 
 
  
 
 
 
  
 
 
 
 
  
 
 
 
  
 
 
  
 
 
  
 
 
 
  
 
 
 
 
 
  
 
 
 
  
 
 
 
 
  
 
 
 
  
 
 
 
 
 
  
 
 
 
  
 
 
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 
Condensed Quarterly Income Statements 
(Dollars in Thousands, Except Per Share Amounts) 

2016 

        Fourth  
  Quarter 

        Third  
  Quarter 

        Second  
  Quarter 

First  
  Quarter    

Interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $   96,337    $  96,624    $  97,896    $   97,057  
 10,817  
Interest expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
86,240  
Net interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 9,134  
Provision for probable loan losses . . . . . . . . . . . . . . . . . . . . . . . . . .    
 40,931  
Non-interest income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    
 67,918  
Non-interest expense  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 11,175  
85,449  
 (1,347) 
 40,530  
 76,667  

 10,113  
86,224  
 4,975  
 43,630  
 73,056  

 11,024  
86,872  
 7,097  
 36,611  
 71,984  

Income before income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

51,823  

50,659  

44,402  

50,119  

Income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    

 16,350  

 14,872  

 14,714  

 17,135  

Net income  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $   35,473    $  35,787    $  29,688    $   32,984  

Per common share: 

Basic 

Net income   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $ 

0.54     $

0.54     $

0.45     $ 

0.50   

Diluted 

Net income   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      $ 

0.53     $

0.54     $

0.45     $ 

0.50   

86 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
       
  
 
 
 
 
 
 
   
 
   
 
   
 
   
 
 
 
   
 
   
 
   
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
 
 
 
 
 
 
   
 
   
 
   
 
   
 
 
 
   
 
   
 
   
 
   
 
 
   
 
   
 
   
 
   
 
 
   
 
   
 
   
 
   
 
  
 
   
 
   
 
   
 
   
 
 
 
   
 
   
 
   
 
   
 
 
   
 
   
 
   
 
   
 
 
 
   
 
   
 
   
 
   
 
 
 
 
 
INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES 
Condensed Average Statements of Condition 
(Dollars in Thousands) 
(Unaudited) 

Distribution of Assets, Liabilities and Shareholders’ Equity 

The following table sets forth a comparative summary of average interest earning assets and average interest 

bearing liabilities and related interest yields for the years ended December 31, 2017, 2016, and 2015.  Tax-exempt 
income has not been adjusted to a tax-equivalent basis: 

Average 
Balance 

2017 

Interest 

2016 

  Average 
  Rate/Cost 

Average 
Balance 

Interest 
(Dollars in Thousands) 

  Average 
  Rate/Cost 

Average 
Balance 

2015 

Interest 

  Average 
  Rate/Cost 

Assets 

Interest earning assets: 

Loan, net of unearned discounts: 

Domestic . . . . . . . . . . . . . . . .   
Foreign  . . . . . . . . . . . . . . . . .   

$ 

 6,026,180    $ 
 157,684   

 317,320    
 5,188    

 5.27  %   $ 
 3.29   

 5,781,466   
 167,582   

$ 

 292,325    
 5,495    

 5.06  %   $ 
 3.28   

 5,662,616   
 182,226   

$ 

 291,180    
 6,103    

Investment securities: 

Taxable . . . . . . . . . . . . . . . . .   
Tax-exempt  . . . . . . . . . . . . . .   
Other . . . . . . . . . . . . . . . . . . . .   
Total interest-earning assets . . .   

 3,954,632   
 235,253   
 84,752   
    10,458,501   

 82,347    
 9,656    
 625    
 415,136    

 4,044,843   
 2.08   
 253,990   
 4.10   
 0.74   
 84,275   
 3.97  %       10,332,156   

 79,533    
 10,356    
 205    
 387,914    

 4,404,569   
 1.97   
 275,267   
 4.08   
 0.24   
 100,816   
 3.75  %       10,625,494   

 88,008    
 11,319    
 144    
 396,754    

Non-interest earning assets: 

Cash and cash equivalents . . . . . . .   
Bank premises and equipment, net . .   
Other assets . . . . . . . . . . . . . . . .   
Less allowance for probable loan 
losses . . . . . . . . . . . . . . . . . . . .   
Total  . . . . . . . . . . . . . . . . .   

Liabilities and Shareholders’ Equity 

 179,134   
 494,327   
 957,270   

 (68,312) 
$  12,020,920   

 154,334   
 488,110   
 1,006,286   

 (66,021) 
$  11,914,865   

 166,460   
 499,233   
 951,728   

 (65,857) 
$  12,177,058   

Interest bearing liabilities: 

Savings and interest bearing 
demand deposits . . . . . . . . . . . . .   
Time deposits: 

Domestic . . . . . . . . . . . . . . . .   
Foreign  . . . . . . . . . . . . . . . . .   

Securities sold under repurchase 
agreements  . . . . . . . . . . . . . . . .   
Other borrowings  . . . . . . . . . . . .   
Junior subordinated interest 
deferrable debentures . . . . . . . . . .   
Total interest bearing liabilities  . .   

$ 

 3,230,463    $ 

 6,208    

 0.19  %   $ 

 3,090,355   

$ 

 4,562    

 0.15  %   $ 

 3,036,542   

$ 

 3,593    

 1,074,199   
 1,097,240   

 402,396   
 891,611   

 160,416   
 6,856,325   

 4,956    
 4,780    

 6,617    
 10,978    

 5,392    
 38,931    

 0.46   
 0.44   

 1.64   
 1.23   

 1,169,156   
 1,123,315   

 759,458   
 633,380   

 3.36   
 0.57  %     

 161,249   
 6,936,913   

 5,328    
 4,635    

 20,876    
 3,128    

 4,600    
 43,129    

 0.46   
 0.41   

 2.75   
 0.49   

 1,278,148   
 1,155,698   

 872,611   
 864,535   

 2.85   
 0.62  %     

 170,843   
 7,378,377   

 6,374    
 4,859    

 23,777    
 1,615    

 4,099    
 44,317    

Non-interest bearing liabilities: 

Demand Deposits  . . . . . . . . . . . .   
Other liabilities . . . . . . . . . . . . . .   
Shareholders’ equity . . . . . . . . . . . . . .   
Total . . . . . . . . . . . . . . . . . . .   

 3,230,708   
 107,952   
 1,825,935   
$  12,020,920   

 3,148,590   
 90,308   
 1,739,054   
$  11,914,865   

 3,059,527   
 82,571   
 1,620,583   
$  12,141,058   

 5.14  % 
 3.35   

 2.00   
 4.11   
 0.14   
 3.73  % 

 0.12  % 

 0.50   
 0.42   

 2.72   
 0.19   

 2.40   
 0.60  % 

Net interest income  . . .   

Net yield on interest 
earning assets  . . . . . . . .   

  $ 

 376,205   

$ 

 344,785   

$ 

 352,437   

 3.34  %    

 3.34  %    

 3.32  % 

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INTERNATIONAL BANCSHARES CORPORATION 
OFFICERS AND DIRECTORS 

OFFICERS 

DIRECTORS 

DENNIS E. NIXON 
Chairman of the Board and President 

JULIE L. TARVIN 
Vice President 

JUDITH I. WAWROSKI 
Treasurer 

WILLIAM J. CUELLAR 
Auditor 

MARISA V. SANTOS 
Secretary 

HILDA V. TORRES 
Assistant Secretary 

DENNIS E. NIXON 
Chairman of the Board 
International Bank of Commerce 

JAVIER DE ANDA 
Senior Vice President 
B.P. Newman Investment Company 

IRVING GREENBLUM 
International Investments/Real Estate 

DOUG HOWLAND 
Investments 

PEGGY NEWMAN 
Investments 

LARRY NORTON 
President 
Norton Stores, Inc. 

ROBERTO R. RESENDEZ 
Owner 
Cattle Ranching and Real Estate Investment Company 

ANTONIO R. SANCHEZ, JR. 
Chairman of the Board 
Sanchez Oil & Gas Corporation 
Investments 

88 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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