Diamond Hill Investment Group Inc.

DIAMOND HILL INVESTMENT GROUP, INC.

2011 ANNUAL REPORT
NOTICE OF 2012 ANNUAL MEETING
AND PROXY STATEMENT

DIAMOND HILL INVESTMENT GROUP, INC.
ANNUAL LETTER TO SHAREHOLDERS

March 14, 2012

Dear Fellow Shareholders:

As Diamond Hill enters its second decade (eleventh year), I am pleased to report that we continue to meet
our primary corporate objective to fulfill our fiduciary duty to our clients. Our various strategies have produced
competitive results since their respective inception dates, which is necessary for us to achieve success as a firm.

Because passive investment alternatives are available at a fraction of the cost of active management strat-
egies such as ours, Diamond Hill’s corporate existence primarily depends upon our strategy returns exceeding
those of passive alternatives. Last year, we set forth our investment fee philosophy in the white paper “Active
Management Fees & Alignment of Interests.” Our goal was to illustrate the ways in which we work to meet our
mission to serve our clients through a disciplined intrinsic value approach to investing, while maintaining our
long-term perspective and aligning our interests with those of our clients. To ensure that we properly align our
interests with those of our clients, our management fees are derived in part from our investment management
goals. We first deduce goals for each of our strategies, and from these goals, we then determine our fee sched-
ules. Clients are best served by a fee that is low enough to allow us to achieve meaningful outperformance rela-
tive to a passive alternative; yet at the same time, a fee that is high enough to allow us to build and maintain an
investment team capable of achieving such results. Likewise, clients are best served by goals that are not only
high enough to inspire outstanding performance, but also realistic enough to allow us to pay and retain top
investment talent. In addition to creating appropriate quantitative incentive structures, we also recognize that the
proper alignment of interests cannot be achieved unless we are diligent about only hiring individuals with high
integrity and a fiduciary mindset.

Investment Research

Investment research is the heart of our firm, which explains the development of a best in class research
team. I believe that we have one of the highest ratios of research analysts to assets under management in the
industry, and I know that the quality and character of the individuals on the research team is second to none.

At the beginning of 2012, we converted the existing Diamond Hill Research Partners, LP into a mutual fund
named Diamond Hill Research Opportunities Fund. The Research Opportunities Fund is a team managed strategy
in which each research analyst is allocated a portion of capital (sleeve) to be invested in the industries he or she
covers. Since its inception on March 31, 2009, this strategy has had excellent investment results. The strategy
was initiated because we believe that we can add value relative to a passive benchmark over time by allowing our
research analysts to apply their deep industry-specific expertise within a very flexible mandate. As important is
the role it serves for our overall investment effort. The Research Opportunities Fund provides a vehicle for
research analysts to demonstrate conviction in their best ideas through the investment of capital and communi-
cate their level of conviction in portfolio recommendations to the portfolio managers. The strategy also serves as
a measurement tool for compensation purposes and is beneficial for developing, retaining and attracting analysts
to Diamond Hill. The Research Opportunities Fund is purposely structured as an all cap, long-short product so
that our research efforts will continue to support all of our strategies.

Succession Planning

In last year’s letter, I discussed our five-year plan for management transition to the next generation. The
process of succession planning is among the most important efforts underway at Diamond Hill. My own plan is
to continue to serve as CEO through the end of 2015 and as an investment team member and portfolio manager
for our Long-Short strategy beyond 2015. Because of this plan, it is increasingly important that my duties be
shared among the many talented individuals at Diamond Hill in order to complete the development of the next
generation and achieve organizational sustainability. As prospective clients assess the sustainability of our firm, I
am happy to report that not only has this process been smooth and healthy, but also in many ways it has revealed
the quality and depth of the leadership among our second generation.

Creating Shareholder Value

Over the past eleven years, we have grown the intrinsic value of our business for our owners. Last year, we
returned essentially all of our net profits to shareholders in the form of a special dividend, and during the past
four years, we have returned $38 per share, over $100 million, in cash to our owners. This type of cash payout
rate is rare in corporate America, as is the fact that every Diamond Hill employee is a shareholder. This is one of
many examples where we strive to establish policies and practices that are optimal for aligning interest and creat-
ing value, rather than simply mimicking the norm. I believe that this distinguishes Diamond Hill in many
important ways and helps to explain our past success, and it is my strong conviction that we continue this prac-
tice.

Sincerely,

R. H. Dillon
President and Chief Executive Officer

Diamond Hill Investment Group, Inc.
325 John H. McConnell Boulevard, Suite 200
Columbus, Ohio 43215

March 14, 2012

Dear Shareholders:

We cordially invite you to attend the 2012 Annual Meeting of Shareholders of Diamond Hill Investment
Group, Inc. to be held at 325 John H. McConnell Blvd., Columbus, Ohio 43215, on Wednesday April 25, 2012,
at 2:00 p.m. Eastern Daylight Saving Time.

The attached Notice of Annual Meeting and Proxy Statement describe the formal business to be transacted
at the meeting. During the meeting, we will also report on our operations and our directors and officers will be
present to respond to any appropriate questions you may have. On behalf of the Board of Directors, we urge
you to sign, date and return the enclosed proxy card as soon as possible, even if you currently plan to
attend the Annual Meeting. This will not prevent you from voting in person but will ensure that your vote is
counted if you are unable to attend the meeting. Your vote is important, regardless of the number of shares you
own.

Sincerely,

R. H. Dillon
President and CEO

Diamond Hill Investment Group, Inc.
325 John H. McConnell Boulevard, Suite 200,
Columbus, Ohio 43215

NOTICE OF ANNUAL MEETING OF SHAREHOLDERS
TO BE HELD ON APRIL 25, 2012

Notice is hereby given that the 2012 Annual Meeting of Shareholders (the “Annual Meeting”) of Diamond
Hill Investment Group, Inc. (the “Company”), will be held at 325 John H. McConnell Blvd., Columbus, Ohio
43215, on Wednesday, April 25, 2012, at 2:00 p.m. Eastern Daylight Saving Time to consider and act upon the
following matters:

1) To elect six directors to serve on the Company’s Board of Directors until the Company’s 2013

Annual Meeting of Shareholders and until their successors have been duly elected and qualified;

2) To consider and vote upon a proposal to ratify the appointment of Plante & Moran PLLC as the

Company’s independent registered public accounting firm for the fiscal year ending December 31, 2012;

3) To consider and vote upon a non-binding, advisory resolution to approve the compensation of the

Company’s named executive officers; and

4) To transact such other business as may properly come before the Annual Meeting or any adjourn-

ment thereof.
Action may be taken on the foregoing proposals at the Annual Meeting or at any adjournment of the Annual
Meeting. The Board of Directors has fixed the close of business on March 1, 2012, as the record date for
determination of the shareholders entitled to vote at the Annual Meeting and any adjournments thereof. You are
requested to complete, sign and date the enclosed form of proxy, which is solicited by the Company’s Board of
Directors, and to mail it promptly in the enclosed envelope. Alternatively, you may vote by phone by using the
control number identified on your proxy or electronically over the Internet in accordance with the instructions on
the enclosed proxy. Returning the enclosed proxy card, or transmitting voting instructions electronically through
the Internet or by telephone, does not affect your right to vote in person at the Annual Meeting. If you attend the
Annual Meeting, you may revoke your proxy and vote in person if your shares are registered in your name.

THE PROMPT RETURN OF YOUR PROXY WILL SAVE THE COMPANY THE EXPENSE OF
MAKING FURTHER REQUESTS FOR PROXIES IN ORDER TO OBTAIN A QUORUM. WHETHER
OR NOT YOU PLAN TO ATTEND THE ANNUAL MEETING, PLEASE COMPLETE, SIGN, DATE
AND RETURN THE ENCLOSED PROXY CARD IN THE ENCLOSED POSTAGE-PAID ENVELOPE.
ALTERNATIVELY, REFER TO THE INSTRUCTIONS ON THE PROXY CARD TO TRANSMIT
YOUR VOTING INSTRUCTIONS VIA THE INTERNET OR BY TELEPHONE.

By order of the Board of Directors

James F. Laird
Secretary

Columbus, Ohio
March 14, 2012

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE
ANNUAL MEETING OF SHAREHOLDERS TO BE HELD ON APRIL 25, 2012:
The Proxy Statement and the Company’s 2011 Annual Report to Shareholders are available without
charge at the following location:
http://www.diamond-hill.com/pdf/imr/proxy-annual-report-final-print.pdf

Diamond Hill Investment Group, Inc.
325 John H. McConnell Boulevard, Suite 200
Columbus, Ohio 43215

PROXY STATEMENT
FOR THE ANNUAL MEETING OF SHAREHOLDERS OF
DIAMOND HILL INVESTMENT GROUP, INC.
TO BE HELD ON APRIL 25, 2012

This Proxy Statement is being furnished to the shareholders of Diamond Hill Investment Group, Inc., an
Ohio corporation (the “Company,” “we,” “us” or “our”), in connection with the solicitation of proxies by the
Board of Directors (the “Board”) for use at the Company’s 2012 Annual Meeting of Shareholders (the “Annual
Meeting”) to be held on April 25, 2012, and any adjournment thereof. A copy of the Notice of Annual Meeting
accompanies this Proxy Statement. This Proxy Statement and the enclosed proxy are first being mailed to share-
holders on or about March 14, 2012. Only shareholders of record at the close of business on March 1, 2012, the
record date for the Annual Meeting, are entitled to notice of, and to vote at, the Annual Meeting.

The purposes of this Annual Meeting are:

1) To elect six directors to serve on the Board until the Company’s 2013 Annual Meeting of Share-

holders and until their successors have been duly elected and qualified;

2) To consider and vote upon a proposal to ratify the appointment of Plante & Moran PLLC (“Plante &
Moran”) as the Company’s independent registered public accounting firm for the fiscal year ending
December 31, 2012;

3) To consider and vote upon a non-binding, advisory resolution to approve the compensation of the

Company’s named executive officers; and

4) To transact such other business that may properly come before the Annual Meeting or any adjourn-

ment thereof.

Those common shares represented by (i) properly signed proxy cards received by the Company prior to the
Annual Meeting or (ii) properly authenticated voting instructions recorded electronically over the Internet or by
telephone prior to 11:59 p.m. Eastern Daylight Saving Time on April 24, 2012 and, in each case, that are not
revoked will be voted at the Annual Meeting as directed by the shareholders. If a shareholder submits a valid
proxy and does not specify how the common shares should be voted, they will be voted as recommended by
your Board. The proxy holders will use their best judgment regarding any other matters that may properly come
before the Annual Meeting.

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE
ANNUAL MEETING OF SHAREHOLDERS TO BE HELD ON APRIL 25, 2012:
The Proxy Statement and the Company’s 2011 Annual Report to Shareholders are available without
charge at the following location:
http://www.diamond-hill.com/pdf/imr/proxy-annual-report-final-print.pdf

TABLE OF CONTENTS

Section

Questions and Answers About the Annual Meeting and Voting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Annual Meeting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedural Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Ownership of Certain Beneficial Owners and Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 16(a) Beneficial Ownership Reporting Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proposal 1 — Election of Directors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Director Independence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Nominees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Board of Directors and Committees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compensation of Directors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corporate Governance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Executive Officers and Compensation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compensation Discussion and Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock Ownership Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summary Compensation Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 Grants of Plan-Based Awards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outstanding Equity Awards at December 31, 2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 Option Exercises and Stock Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Report of the Compensation Committee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proposal 2 — Ratification of the Appointment of Independent Registered Public Accounting Firm . . . . . . .
Proposal 3 — Advisory Vote on the Compensation of the Company’s Named Executive Officers . . . . . . . .
Company’s Executive Officers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shareholder Communications with the Board of Directors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shareholder Proposals for the 2013 Annual Meeting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shareholders Sharing the Same Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page

1
2
3
5
6
6
6
6
8
10
11
13
13
17
18
20
20
21
23
24
25

26
26
26
27

QUESTIONS AND ANSWERS ABOUT THE ANNUAL MEETING AND VOTING

Q: When and where will the Annual Meeting take place?

A: The Annual Meeting will be held at 325 John H. McConnell Blvd., Columbus, Ohio 43215, on Wednesday
April 25, 2012, at 2:00 p.m. Eastern Daylight Saving Time. You may also listen live to the Annual Meeting
via audio conference by calling 888-424-8151 [use confirmation code 9190483# when prompted] and you
can
our website,
“News
http://www.diamond-hill.com.

view presentation materials

and Updates”

section

the

of

in

Q: What may I vote on?

A: At the Annual Meeting, you will be asked to consider and vote upon: (i) the election of six directors to serve
on the Board until the Company’s 2013 Annual Meeting of Shareholders and until their successors have
been duly elected and qualified; (ii) a proposal to ratify the appointment of Plante & Moran as the Compa-
ny’s independent registered public accounting firm for the fiscal year ending December 31, 2012; and (iii) a
non-binding, advisory resolution to approve the compensation of the Company’s named executive officers.

Q: What do I need to do now?

A: After carefully reading this Proxy Statement, indicate on the enclosed proxy card how you want your shares
to be voted and sign and mail the proxy promptly in the enclosed envelope. Alternatively, you may vote by
phone by using the control number identified on your proxy, or vote over the Internet in accordance with the
instructions on your proxy. The deadline for transmitting voting instructions over the Internet or telephoni-
cally is 11:59 p.m. Eastern Daylight Saving Time on April 24, 2012. If you vote by phone or over the Inter-
net you do not need to return a proxy card. You should be aware that if you vote over the Internet or by
phone, you may incur costs associated with electronic access, such as usage charges from Internet service
providers and telephone companies.

Q: What does it mean if I get more than one proxy card?

A:

If your shares are registered in more than one account, you will receive more than one proxy card. If you
intend to vote by mail, sign, date and return all proxy cards to ensure that all your shares are voted. If you
are a record holder and intend to vote by telephone or over the Internet, you must do so for each individual
proxy card you receive.

Q: What is the difference between holding shares as a shareholder of record and as a beneficial owner?

A: Many shareholders are beneficial owners, meaning they hold their shares in “street name” through a broker,
bank or other nominee. As summarized below, there are some distinctions between shares held of record
and those owned beneficially.

Shareholder of Record. For shares registered directly in your name with the Company’s transfer agent,
you are considered the shareholder of record and we are sending this Proxy Statement and related materials
directly to you. As a shareholder of record, you have the right to vote in person at the Annual Meeting or
you may grant your proxy directly to the Board’s designees by completing, signing and returning the
enclosed proxy card, or transmitting your voting instructions over the Internet or by phone.

Beneficial Owner. For shares held in “street name,” you are considered the beneficial owner and this
Proxy Statement and related materials are being forwarded to you by your broker, bank or other nominee,
who is the shareholder of record. As the beneficial owner, you have the right to direct your broker or other
nominee on how to vote your shares. Your broker or nominee will provide you with information on the
procedures you must follow to instruct them how to vote your shares or how to revoke previously given
voting instructions.

Q:

If my shares are held in “street name” by my broker, will my broker vote my shares for me?

A: Your broker will vote your shares in the manner you instruct and you should follow the voting instructions
provided to you by your broker. However, if you do not provide voting instructions to your broker, it may
vote your shares in its discretion on certain “routine” matters. The ratification of the appointment of

1

Plante & Moran as our independent registered public accounting firm for the 2012 fiscal year is considered
routine, and if you do not submit voting instructions, your broker may choose, in its discretion, to vote or
not vote your shares on the ratification. None of the other matters to be voted on at the Annual Meeting are
routine, and your broker may not vote your shares on those matters without your instructions.

Q: May I revoke my proxy or change my vote after I have mailed a proxy card or voted electronically

over the Internet or by telephone?

A: Yes. You can change your vote at any time before your proxy is voted at the Annual Meeting. If you are the

record holder of the shares, you can do this in three ways:

• send a written statement to James F. Laird, our Secretary, stating that you would like to revoke your

proxy, which must be received prior to the Annual Meeting;

• send a newly signed and later-dated proxy card, which must be received prior to the Annual Meeting, or
submit later-dated electronic voting instructions over the Internet or by telephone no later than 11:59 p.m.
Eastern Daylight Savings Time on April 24, 2012; or

• attend the Annual Meeting and revoke your proxy in person prior to the start of voting at the Annual
Meeting or vote in person at the Annual Meeting (attending the Annual Meeting will not, by itself,
revoke your proxy or a prior Internet or telephonic vote).

If you are a beneficial owner, you may change your vote by submitting new voting instructions to your
broker or nominee, and you should review the instructions provided by your broker or nominee to determine
the procedures you must follow.

Q: Can I vote my shares in person at the Annual Meeting?

A: You may vote shares held of record in person at the Annual Meeting. If you choose to attend, please bring
the enclosed proxy card and a form of identification. If you are a beneficial owner and you wish to attend
the Annual Meeting and vote in person, you will need a signed proxy from your broker or other nominee
giving you the right to vote your shares at the Annual Meeting and a form of identification.

Q: How will my shares be voted if I submit a proxy without voting instructions?

A:

If you submit a proxy and do not indicate how you want your shares voted, your proxy will be voted on the
matters presented as recommended by your Board. The Board’s recommendations are set forth in this Proxy
Statement.

Q: Who can answer my questions about how I can submit or revoke my proxy or vote by phone or via

the Internet?

A:

If you are a record shareholder and have more questions about how to submit your proxy, please call James
F. Laird, the Company’s Secretary, at (614) 255-3353. If you are a beneficial owner, you should contact
your broker or other nominee to determine the procedures your must follow.

THE ANNUAL MEETING

The Annual Meeting will be held at 325 John H. McConnell Blvd., Columbus, Ohio 43215, on Wednesday,
April 25, 2012, at 2:00 p.m. Eastern Daylight Saving Time. The purposes of the Annual Meeting are to consider
and vote upon (i) the election of six directors to serve on the Board until the Company’s 2013 Annual Meeting of
Shareholders and until their successors have been duly elected and qualified; (ii) a proposal to ratify the
appointment of Plante & Moran as the Company’s independent registered public accounting firm for the fiscal
year ending December 31, 2012; and (iii) a non-binding, advisory resolution to approve the compensation of the
Company’s named executive officers. We are currently not aware of any other matters that will come before the
Annual Meeting.

2

PROCEDURAL MATTERS

Record Date

Only our shareholders of record at the close of business on March 1, 2012, the record date, will be entitled
to vote at the Annual Meeting. As of the record date, there were 3,084,982 of common shares outstanding and
entitled to vote at the Annual Meeting.

Proxy

Your shares will be voted at the Annual Meeting as you direct on your signed proxy card or in your tele-
phonic or Internet voting instructions. If you submit a proxy without voting instructions, it will be voted as
recommended by your Board. These recommendations are set forth in this Proxy Statement. The duly appointed
proxy holders will vote in their discretion on any other matters that may properly come before the Annual Meet-
ing.

Voting

Each outstanding share may cast one vote on each separate matter of business properly brought before the
Annual Meeting. If you hold shares in street name, the Board encourages you to instruct your broker or other
nominee as to how to vote your shares.

A shareholder voting in the election of directors may cumulate such shareholder’s votes and give one candi-
date a number of votes equal to (i) the number of directors to be elected (six), multiplied by (ii) the number of
shares held by the shareholder, or may distribute such shareholder’s total votes among as many candidates as the
shareholder may select. However, no shareholder will be entitled to cumulate votes unless the candidate’s name
has been placed in nomination prior to voting and a shareholder has given us notice at least 48 hours prior to the
Annual Meeting of the intention to cumulate votes. The proxies the Board is soliciting include the discretionary
authority to cumulate votes. If cumulative voting occurs at the Annual Meeting, the proxies intend to vote the
shares represented by proxy in a manner to elect as many of the seven director nominees as possible. Cumulative
voting only applies to the election of directors.

Director elections. The affirmative vote of the holders of a plurality of the shares represented at the
Annual Meeting, in person or by proxy, and entitled to vote is required for the election of directors, and the six
nominees receiving the most votes will be elected.

Ratification of selection of independent registered public accounting firm. The affirmative vote of a
majority of the shares represented at the Annual Meeting, in person or by proxy, and entitled to vote on the pro-
posal is required to ratify the selection of Plante & Moran as the Company’s independent registered public
accounting firm for fiscal 2012.

Advisory approval of named executive officer compensation. The affirmative vote of a majority of the
shares represented at the Annual Meeting, in person or by proxy, and entitled to vote on the proposal is required
for shareholder advisory approval of the compensation of the Company’s named executive officers.

Effect of broker non-votes and abstentions. Under the applicable regulations of the Securities and
Exchange Commission (the “SEC”) and the rules of exchanges and other self-regulatory organizations of which
the brokers are members, brokers who hold common shares in street name may sign and submit proxies and may
vote our common shares on certain “routine” matters. The ratification of Plante & Moran is considered routine.
Brokers may not vote street name shares on the election of directors or approval of the compensation of our
named executive officers without specific instruction from the customer who owns the shares. Proxies that are
signed and submitted by brokers that have not been voted on certain matters are referred to as “broker
non-votes.”

Neither broker non-votes nor abstentions will have any effect on the election of directors. Abstentions will
have the same effect as a vote against the ratification of the appointment of Plante & Moran and the advisory
approval of named executive officer compensation; although, broker non-votes will have no effect on those
proposals.

3

Quorum

We can conduct business at the Annual Meeting only if a quorum, consisting of at least the holders of a
majority of our outstanding shares entitled to vote, is present, either in person or by proxy. Abstentions and
broker non-votes will be counted toward establishing a quorum. If a quorum is not present at the time the Annual
Meeting is convened, a majority of the shares represented in person or by proxy may adjourn the Annual Meeting
to a later date and time, without notice other than announcement at the Annual Meeting. At any such adjourn-
ment of the Annual Meeting at which a quorum is present, any business may be transacted which might have
been transacted at the Annual Meeting as originally called.

Solicitation; Expenses

We will pay all expenses of the Board’s solicitation of the proxies for the Annual Meeting, including the
cost of preparing, assembling and mailing the Notice, form of proxy and Proxy Statement, postage for return
envelopes, the handling and expenses for tabulation of proxies received, and charges of brokerage houses and
other institutions, nominees or fiduciaries for forwarding such documents to beneficial owners. We will not pay
any electronic access charges associated with Internet or telephonic voting incurred by a shareholder. We may
solicit proxies in person or by telephone, facsimile or e-mail. Our officers, directors and employees may also
assist with solicitation and will receive no additional compensation for their services.

No person is authorized to give any information or to make any representation not contained in this Proxy
Statement, and you should not rely on any such information or representation. This Proxy Statement does not
constitute the solicitation of a proxy in any jurisdiction from any person to whom it is unlawful to make such
proxy solicitation in such jurisdiction. The delivery of this Proxy Statement shall not, under any circumstances,
imply that there has not been any change in the information set forth herein since the date of this Proxy State-
ment.

Requests for Proxy Statement and Annual Report on Form 10-K; Internet Availability

Our Annual Report on Form 10-K for the year ended December 31, 2011, including audited consolidated
financial statements, accompanies this Proxy Statement but is not a part of the proxy solicitation material. We are
delivering a single copy of this Proxy Statement and the Form 10-K to multiple shareholders sharing an address
unless we have received instructions from one or more of the shareholders to the contrary. We will promptly
deliver a separate copy of the Proxy Statement and/or Form 10-K, at no charge, upon receipt of a written or oral
request by a record shareholder at a shared address to which a single copy of the documents was delivered. Writ-
ten or oral requests for a separate copy of the documents, or to provide instructions for delivery of documents in
the future, may be directed to James F. Laird, Secretary of the Company, at 325 John H. McConnell Boulevard,
Suite 200, Columbus, Ohio 43215 or by phone at (614) 255-3333.

Additionally, this Proxy Statement and our Annual Report on Form 10-K are available on the internet free

of charge at: http://www.diamond-hill.com/pdf/imr.proxy-annual-report-final-print.pdf.

4

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

The following table sets forth beneficial ownership of our common shares as of the record date, March 1,
2012, by (a) all persons known by us to own beneficially five percent or more of the Company’s outstanding
shares, (b) each director and director nominee, (c) our Chief Executive Officer and Chief Financial Officer (each,
a “named executive officer”), and (d) all of our executive officers and directors as a group. Although not
required, we have also decided to voluntarily disclose all common shares beneficially owned by all other
employees of the Company, excluding the executive officers. Unless otherwise indicated, the named persons
exercise sole voting and dispositive power over the shares listed. None of the named persons have any out-
standing options.

Name of Beneficial Owner

Lawrence E. Baumgartner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
R. H. Dillon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
James F. Laird . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
David P. Lauer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Peter J. Moran . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Donald B. Shackelford . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frances A. Skinner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Directors, nominees, and executive officers as a group (7 persons) . . . . . . . . . . .
All other employees of the Company (71 persons)(3) . . . . . . . . . . . . . . . . . . . . . .
5% Beneficial Owners
BlackRock, Inc.(5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40 East 52nd Street
New York, NY 10022

Amount and Nature
of Beneficial
Ownership

Percent of
Class(1)

2,564
300,574(2)
76,328(2)
7,785
13,175
13,505
6,935
420,866
550,878(4)

182,002

*
9.7%
2.5%
*
*
*
*
13.6%
17.9%

5.9%

JPMorgan Chase & Co.(6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

181,200

5.9%

270 Park Avenue
New York, NY 10017

(1) Beneficial ownership of less than one percent is represented by an asterisk (*). The percent of class is based
upon (a) the number of shares beneficially owned by the named person, divided by (b) the total number of
shares which are issued and outstanding as of March 1, 2012 (3,084,982 shares).

(2) Includes 2,187 shares for Mr. Dillon and 2,796 shares for Mr. Laird, which are held in the Company’s 401(k)
plan, over which the Trustees of the 401(k) Plan possess the voting power and which are subject to
restrictions on the power to dispose of these shares.

(3) Includes all employees of Diamond Hill Investment Group, Inc. and its subsidiaries as of March 1, 2012,
excluding executive officers. Each employee has sole voting power. Certain shares are subject to restrictions
on the power to dispose of the shares. The employees do not constitute a Group as defined by Rule 13d-1 of
the Exchange Act.

(4) Includes 69,738 shares held in the Company’s 401(k) plan, over which the Trustees of the 401(k) Plan pos-

sess the voting power and which are subject to restrictions on the power to dispose of these shares.

(5) Based on information contained in a Schedule 13G/A filed with the SEC on February 13, 2012, by Black-
Rock, Inc. In this Schedule 13G/A, BlackRock, Inc. reported sole voting power and sole dispositive power
over 182,002 shares on behalf of the following subsidiaries: BlackRock Institutional Trust Company, N.A.,
BlackRock Fund Advisors, BlackRock Asset Management Canada Limited, BlackRock Advisors, LLC, and
BlackRock Investment Management, LLC.

(6) Based on information contained in a Schedule 13G filed with the Securities and Exchange Commission
(“SEC”) on January 17, 2012, by JPMorgan Chase & Co. In this Schedule 13G, JPMorgan Chase & Co.
reported sole voting power over 168,600 and sole dispositive power over 181,200 shares on behalf of its
subsidiary J.P. Morgan Investment Management, Inc.

5

SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

Section 16(a) of the Exchange Act requires executive officers and directors, and persons who beneficially
own more than ten percent of the Company’s shares, to file with the Securities and Exchange Commission
(“SEC”) initial reports of ownership on Form 3 and reports of changes in ownership on Form 4 and Form 5.
Executive officers, directors and persons who beneficially own more than ten percent of the Company’s secu-
rities are required by SEC regulations to furnish to the Company copies of all Section 16(a) reports they file with
the SEC. Based solely upon a review of the Forms 3, 4 and 5 furnished to the Company by these persons and
statements made by these persons that no other Section 16(a) reports were required to be filed by them, there
were, to the Company’s knowledge, no late or unfiled reports during the year ended December 31, 2011.

PROPOSAL 1 — ELECTION OF DIRECTORS

The Board guides the strategic direction of the Company and oversees its management. All of the Compa-
ny’s directors are elected annually. Pursuant to the recommendation of the Nominating and Governance Commit-
tee, the Board has nominated the six nominees listed below, all of whom are incumbents. All have been
nominated by the Board to hold office until the next annual meeting of shareholders and until their respective
successors are elected and qualified.

Lawrence E. Baumgartner, who has served as a director of the Company since 2008 and is a member of the
Audit Committee and Nominating and Governance Committee, has decided not to stand for reelection. The
Board would like to thank Mr. Baumgartner
In light of
Mr. Baumgartner’s decision not to seek reelection, the Board reduced the number of directors of the Company
from seven to six, and thus there are six nominees for election to the Board at the Annual Meeting. The reduction
in the number of directors does not affect Mr. Baumgartner, who will continue to serve on the Board until his
term expires at the Annual Meeting.

for his dedicated service to the Company.

If any nominee becomes unable or unwilling to serve between the date of this proxy statement and the Meet-
ing, proxies will be voted FOR the election of a replacement recommended by the Nominating and Governance
Committee and approved by the Board.

Director Independence

The Board has determined that, with the exception of Mr. Dillon and Mr. Laird, all of our current directors
are independent under the rules and independence standards of The NASDAQ Stock Market (“NASDAQ”), as
well as applicable SEC requirements. There are no family relationships among our directors and executive offi-
cers.

The Nominees

The Board has determined that all of our director nominees are qualified to serve as directors of the Com-
pany. In addition to the specific business experience listed below, each of our director nominees has the tangible
and intangible skills and attributes which we believe are required to be an effective director of the Company,
including experience at senior levels in areas of expertise helpful to the company, a willingness and commitment
to assume the responsibilities required of a director of the Company, and the character and integrity we expect of
our directors. The specific qualifications of each individual nominee are set forth under his or her name below.

R. H. Dillon, CFA, age 55, has been a director of the Company since 2001, and the President and CEO of
the Company since 2000. Prior to joining the firm in 2000, Mr. Dillon had been employed as a portfolio manager
by Loomis, Sayles & Company since 1997. Mr. Dillon has over 30 years of experience in the investment
management industry.

Mr. Dillon received his BS and MA from The Ohio State University and his MBA from University of Day-

ton. Mr. Dillon also holds the Chartered Financial Analyst designation.

The Board believes that Mr. Dillon’s qualifications to serve on the Board include his 11 years of experience
as CEO and Portfolio Manager of the Company, his in depth knowledge and involvement in the Company’s
operations and his more than 30 years of experience as an investment professional.

6

James F. Laird, CPA, age 55, has been a director of the Company since 2011, and the Chief Financial
Officer of the Company and President of Diamond Hill Funds since 2001. Prior to joining the firm in 2001,
Mr. Laird was employed as a Senior Vice President for Villanova Capital since 1999 and Vice President and
General Manager for Nationwide Advisory Services, Inc. from 1995 to 1999. Mr. Laird has over 25 years of
experience in the investment management industry.

Mr. Laird also serves on the board of Ohio Dominican University and is chairman of its Audit Committee.

Mr. Laird received his BS in Accounting from The Ohio State University, is a Certified Public Accountant,

and holds the Series 7, 24, 26, 27 and 63 securities licenses with the Financial Industry Regulation Authority.

The Board believes that Mr. Laird’s qualifications to serve on the Board include his 10 years of experience
as CFO of the Company, his in depth knowledge and involvement in the Company’s operations and his more
than 25 years of experience in the financial, operational, administrative, and distribution aspects of the invest-
ment management industry.

David P. Lauer, CPA, age 69, has been an independent director of the Company since 2002, and is the
chairman of the Audit Committee. Mr. Lauer retired from Bank One, Columbus in 2001, where he served as
President and Chief Operating Officer from 1997 to 2001. Mr. Lauer is also a retired partner of Deloitte & Tou-
che LLP, an international accounting and consulting firm, where he was Managing Partner of the Columbus Ohio
office from 1989 to 1997. Mr. Lauer has over 40 years of experience in accounting and financial matters.

Mr. Lauer is a director of Huntington Bancshares, a multi-state diversified financial holding company, and
serves as chairman of the Audit Committee and member of the Capital Planning Committee. He is also a director
of R.G. Barry Corporation, a retail developer and marketer of accessory footwear, and serves as the chairman of
its Nominating and Governance Committee and a member of its Audit and Compensation Committees. Mr. Lauer
also serves on the board of W. W. Williams Company, Evans Corporation, and On-Line Computer Library Cen-
ter, Inc, all of which are private or non-for-profit organizations. Mr. Lauer also served as a director of Wendy’s
International from 2000 to 2008 and Tim Horton’s Inc. from 2006 to 2007.

Mr. Lauer has an undergraduate degree from Capital University and a masters in accountancy from Ohio

University. Mr. Lauer is also a Certified Public Accountant.

The Board believes that Mr. Lauer’s qualifications to serve on the Board include his substantial experience
in accounting and financial matters, including his significant experience as a Certified Public Accountant, his
prior role as President and Chief Operating Officer of Bank One-Columbus, and his experience as a director of
other public companies.

Peter J. Moran, age 51, has been an independent director of the Company since 2011, and serves on the
Compensation Committee and Nominating and Governance Committee. Mr. Moran has been a managing partner
with DundeeWealth US, LP, an institutional investment management firm since 2008. Prior to joining Dundee-
Wealth US, LP, he was a founder and managing partner with BHR Fund Advisors, LP from 2006 until its acquis-
ition by DundeeWealth in 2008. From 2005 to 2006 he was President of Constellation Funds Group, LP. Prior to
Constellation, he was employed at Turner Investment Partners as Managing Director of mutual fund, investment-
only defined contribution and sub-advisory distribution. He has held several senior positions with leading
investment management firms including J.P. Morgan Investment Management, Montgomery Asset Management
and PIMCO/Pacific Life. Mr. Moran has over 25 years of experience in the investment management industry.

Mr. Moran received his BA in Economics from University of Richmond. Mr. Moran also holds the Char-
tered Financial Consultant and Chartered Life Underwriter designations and is a member of the Executive
Committee of the Mutual Fund Education Alliance.

The Board believes that Mr. Moran’s qualifications to serve on the Board include his significant experience
in the global investment management industry, including specific experience in the sales and distribution of
investment management products.

Donald B. Shackelford, age 79, has been an independent director and board chairman of the Company
since 2005, and serves on the Compensation Committee and the Nominating and Governance Committee.
Mr. Shackelford retired from Fifth Third Bank, Central Ohio (successor to State Savings Bank) in 2008, where

7

he served as Chairman from 1998 to 2008. Prior to joining Fifth Third Bank, Mr. Shackelford served as Chair-
man and CEO of State Savings Bank for 25 years, until its acquisition by Fifth Third Bank in 1998.

Mr. Shackelford served as a director of The Progressive Corporation, a national property and casualty
insurance company from 1976 to 2010. Mr. Shackelford also serves on the board of Heads & Threads Interna-
tional, LLC, and Lowell Group, both of which are private or non-for-profit organizations. Mr. Shackelford also
served as a director of Limited Brands, Inc. from 1976 to 2005.

Mr. Shackelford received his BA from Denison University and his MBA from Harvard Business School.

The Board believes that Mr. Shackelford’s qualifications to serve on the Board include his substantial experi-

ence in banking and financial services and his experience as a director of another public company.

Frances A. Skinner, CFA, CPA, age 47, has been an independent director of the Company since 2010, is
the chair of the Compensation Committee, and serves on the Audit Committee. Ms. Skinner has been a partner
with AUM Partners, LLC, a management consulting firm specializing in the investment management industry,
since 2009. Prior to joining AUM Partners, she was a principal with Focus Consulting Group, Inc. from 2003 to
2009. Ms. Skinner also spent 16 years at Allstate Investments, LLC, where she worked on developing compensa-
tion and incentive programs for investment professionals. Ms. Skinner has over 25 years of experience in the
areas of investment management, finance and consulting. She is a co-author of the book High Performing
Investment Teams (Wiley, 2006).

Ms. Skinner received her BA from St. Xavier University and her MBA from the University of Illinois —
Chicago. Ms. Skinner also holds the Chartered Financial Analyst designation and is a Certified Public Account-
ant.

The Board believes that Ms. Skinner’s qualifications to serve on the Board include her significant experi-
ence in the global investment management industry and experience in developing and consulting on matters of
leadership, teamwork, performance evaluation, and compensation practices.

THE BOARD UNANIMOUSLY RECOMMENDS THAT YOU VOTE FOR THE REELECTION OF
R. H. DILLON, JAMES F. LAIRD, DAVID P. LAUER, PETER J. MORAN, DONALD B. SHACK-
ELFORD, AND FRANCES A. SKINNER AS DIRECTORS OF THE COMPANY.

THE BOARD OF DIRECTORS AND COMMITTEES

The Board held a total of five meetings during the year ended December 31, 2011. Each director attended
100% of the combined total number of meetings of the Board and Board committees of which he or she was a
member. Consistent with the Company’s Corporate Governance Guidelines, the independent directors met in
executive session at all five of the Board meetings in 2011. Our Corporate Governance Guidelines provide that
all directors are expected to attend each annual meeting of shareholders. All of our then incumbent directors
attended our 2011 Annual Meeting of Shareholders.

Corporate Governance

The Board has three standing committees: the Audit Committee, the Compensation Committee, and the
Nominating and Governance Committee. The Board has adopted a written charter for each Committee. Current
copies of each committee charter and our Corporate Governance Guidelines are available at our Web site,
www.diamond-hill.com, by clicking the “Investor & Media Relations” tab followed by the “Corporate Gover-
nance” tab.

Pursuant to rules promulgated under the Sarbanes-Oxley Act, the Board has adopted a Code of Ethics for
Principal Executive and Senior Financial Officers. This code is intended to deter wrongdoing and promote honest
and ethical conduct, full, timely and accurate reporting, compliance with laws, and accountability for adherence
to the code, including internal reporting of code violations.

The Company also has a Code of Business Conduct and Ethics that is applicable to all of our employees and
directors, a copy of which is filed as an exhibit to our Annual Report on Form 10-K filed with the SEC on
March 13, 2009. It is the Company’s policy to require all employees to participate annually in continuing educa-
tion and training relating to the Code of Business Conduct and Ethics.

8

The Company also has established a policy prohibiting its officers, directors, and employees from purchas-
ing or selling shares of the Company while in possession of material, nonpublic information, or otherwise using
such information for their personal benefit or in any manner that would violate applicable laws and regulations.
In addition, the policy also prohibits all employees and directors from purchasing or selling any derivative
arrangement related to securities of the Company or engaging in any speculative, short selling, or hedging activ-
ities related to securities of the Company that may have a similar economic effect.

Audit Committee

Mr. Lauer, Mr. Baumgartner and Ms. Skinner serve on the Audit Committee, which met four times during
2011. The Board has determined that each committee member meets the independence and financial literacy
rules and standards of the SEC and NASDAQ. The Board also has concluded that Mr. Lauer, the Chairman of the
Audit Committee, and Ms. Skinner meet the criteria for an audit committee financial expert as established by the
SEC.

The primary purpose of the Audit Committee is to assist the Board in fulfilling its oversight responsibilities
with respect to (1) the retention of our independent registered public accounting firm, including appointing and
overseeing the terms of its engagement and its performance, qualifications and independence, and (2) the
integrity of our financial statements, other financial information provided to shareholders, and our internal con-
trol structure. The Audit Committee also reviews all related person transactions for potential conflicts of interest
on an ongoing basis and all such transactions must be approved by the Audit Committee. Additional information
on the approval of related person transactions is available under the heading “Certain Relationships and Related
Person Transactions” below. The report of the Audit Committee appears below the heading “REPORT OF THE
AUDIT COMMITTEE.”

Compensation Committee

Mr. Moran, Mr. Shackelford and Ms. Skinner serve on the Compensation Committee, which met three times
during 2011. Ms. Skinner serves as the Chair of the Compensation Committee. The Board of Directors has
determined that each of these members meets the independence criteria of the SEC and NASDAQ. No member
of the Compensation Committee is or has been an officer or employee of the Company or has had any relation-
ship requiring disclosure by us under Item 404 of SEC Regulation S-K. In addition, no member of the
Compensation Committee or Board is employed by a company whose board of directors includes a member of
our management.

The primary purpose of the Compensation Committee is to review and approve the Company’s executive
compensation policies, evaluate the performance of our executive officers in light of corporate goals and
objectives approved by the Compensation Committee, approve the annual salary, bonus, stock grants and other
benefits, direct and indirect, of our executive officers and other senior employees, make recommendations to the
full Board with respect to incentive-compensation plans and equity-based plans and determine director and
committee member/chair compensation for non-employee directors. The Compensation Committee also adminis-
ters our equity and other incentive plans. A description of the Company’s processes and procedures for the con-
sideration and determination of executive officer compensation are discussed under the heading “Compensation
Discussion and Analysis” below.

Nominating and Governance Committee

Messrs. Baumgartner, Moran and Shackelford serve on the Nominating and Governance Committee, which
met four times during 2011. Mr. Baumgartner serves as the chairman. The Board has determined that all commit-
tee members meet the independence criteria of NASDAQ.

The primary purpose of the Nominating and Governance Committee is to maintain and cultivate the effec-
tiveness of the Board and oversee the Company’s governance policies. Among the committee’s responsibilities
are Board and committee composition, director qualifications, orientation and education, and Board evaluations.
Members identify, evaluate, and nominate Board candidates; review compliance with director stock ownership
guidelines; and oversee procedures regarding shareholder nominations and other communications to the Board.

9

In addition, they are responsible for monitoring compliance with and recommending any changes to the compa-
ny’s Corporate Governance Guidelines. Additional information regarding the committee’s activities appears
under the heading “Corporate Governance.”

Compensation of Directors

The Compensation Committee is responsible for periodically reviewing and recommending to the Board the
compensation of independent directors. The following table sets forth information regarding the compensation
earned by, or paid to, directors who served on our Board in 2010. Mr. Dillon and Mr. Laird, who are executive
officers of the Company, do not receive separate directors’ fees for their service and have been omitted from this
table.

Name

2011 Director Compensation(1)

Fees Earned
or Paid
in Cash

Stock
Awards(2)

Lawrence E. Baumgartner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
David P. Lauer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Peter J. Moran(3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Donald B. Shackelford . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frances A. Skinner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
David R. Meuse(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diane D. Reynolds(4)

$20,750
$17,000
$10,000
$23,750
$18,750
$ 9,000
$ 6,000

$40,000
$40,000
$30,000
$40,000
$40,000
$15,000
$15,000

Total

$60,750
$57,000
$40,000
$63,750
$58,750
$24,000
$21,000

(1) Includes only those columns relating to compensation awarded to, earned by, or paid to non-employee direc-

tors for their services in 2011. All other columns have been omitted.

(2) Represents the full grant-date fair value computed by multiplying the total shares granted by the closing price
of the shares on the grant date. All shares were fully vested on the grant date, and therefore, this amount also
reflects the expense incurred and recognized in the Company’s financial statements. On February 24, 2011,
each director other than Mr. Moran, received a grant of 540 shares for service as a non-employee director,
which had a value of $40,000 based on the market price of the shares on that date. These shares were granted
under the 2005 Employee and Director Equity Incentive Plan. Following his election as a director at the 2011
Annual Meeting, Mr. Moran received a grant of 375 shares for service as a non-employee director, which had
a value of $30,000 based on the market price of the shares on that date. These shares were granted under the
2011 Equity and Cash Incentive Plan. For information on the expensing of these awards, please see note 5 to
the consolidated financial statements contained in the Company’s Form 10-K for
the year ended
December 31, 2011.

(3) Mr. Moran was elected to the Board at the Annual Meeting on April 26, 2011. His compensation represents

service after his election to the Board.

(4) David R. Meuse and Diane D. Reynolds did not stand for re-election at the Annual Shareholder meeting on

April 26, 2011. Their compensation represents service in 2011 prior to the 2011 Annual Meeting.

Fees and Other Compensation

For 2011, non-employee directors receive the following:

• an annual retainer of $40,000, paid in Company shares;

• an annual retainer of $10,000 for the chairman of the Board

• an annual retainer of $5,000 for the chairs of each Committee;

• a fee of $2,000 for each board meeting attended; and

• a fee of $1,000 for each committee meeting attended.

10

Ownership and Retention Guidelines

Each non-employee director is required to hold for his or her entire term of service on the Board 100% of
the shares of our common stock granted to them as compensation. They may not sell any of the shares granted to
them until they conclude their service as a director.

CORPORATE GOVERNANCE

The Nominating and Governance Committee has general oversight responsibility for assessment and recruit-
ment of new director candidates, as well as evaluation of director and board performance and oversight of gover-
nance matters for the Company. The Committee adopted Corporate Governance Guidelines on February 25,
2010, which are available at our website, www.diamond-hill.com, by clicking the “Investor & Media Relations”
tab followed by the “Corporate Governance” tab.

Board Leadership and Composition

We believe separating the roles of Chairman and CEO provides for a strong governance and oversight struc-
ture. These roles have been separate since 2000. The Chairman approves Board agendas and schedules, chairs all
executive sessions of the independent directors, acts as liaison between the independent directors and management,
oversees the information distributed in advance of Board meetings, is available to the Secretary to discuss and, as
necessary, respond to shareholder communications to the Board, and calls meetings of the independent directors.

Currently, five of our seven directors are independent under NASDAQ standards. If the proposed directors
are elected, four of our six directors will be independent. In addition, the Nominating and Governance Commit-
tee, the Audit Committee, and the Compensation Committee are all comprised entirely of independent directors.
Overall, the Company believes that our Board structure is designed to foster critical oversight, good governance
practices, and the interests of the Company and its shareholders.

Among other things, the Corporate Governance Guidelines address term limits of each director. Although
we have a 10 year service limit for directors, the Guidelines authorize the Board to make exceptions to this limi-
tation and permit directors to serve for an additional year. Using its discretion, the Board chose to allow
Mr. Lauer to stand for re-election for one additional year of service.

Board’s Role in Risk Oversight

The Board’s role in the Company’s risk oversight process includes receiving regular reports from members
of senior management on areas of material risk to the Company, including client investment performance, opera-
tional, financial, legal, regulatory, and strategic risks. The Audit Committee is responsible for overseeing risks
relating to the Company’s accounting matters, financial reporting and legal and regulatory compliance. To satisfy
these oversight responsibilities, the Audit Committee meets regularly with management and Plante & Moran.
The Compensation Committee is responsible for overseeing risks relating to employment policies and the
Company’s compensation and benefits programs. To satisfy these oversight responsibilities, the Compensation
Committee meets regularly with management to understand the implications of compensation decisions, partic-
ularly the risks that the Company’s compensation policies pose to its finances and its relationship with employ-
ees.

Planning Group

During 2009, we formed the Planning Group, which is comprised of seven associates representing all func-
tional areas of the organization. These individuals are not executive officers of the Company. The Planning
Group was formed to address important Company issues and provide counsel to the CEO and CFO. The Planning
Group collaborates and recommends action on various company initiatives and the overall direction of the firm,
although ultimate decision making authority remains with our CEO and CFO. The Planning Group is comprised
of the following individuals: Chris Bingaman — portfolio management, Chris Welch — portfolio management,
Bill Zox — portfolio management, Rick Snowdon — investment research, Laurie Riebel — client management,

11

James Bishop — business development, and Gary Young — business management. The Planning Group also
plays a role in the Company’s overall succession planning efforts. The Company believes that the Planning
Group in conjunction with the CEO and CFO is an appropriate and effective organizational structure for Dia-
mond Hill.

Director Orientation and Continuing Education and Development

When a new independent director joins the Board, the Company provides a formal orientation program for
the purpose of providing the new director with an understanding of the operations and the financial condition of
the Company. In addition, each director is expected to maintain the necessary level of expertise to perform his or
her responsibilities as a director. To assist the directors in maintaining such level of expertise, we may, from time
to time, offer continuing education programs in addition to briefings during Board meetings relating to the com-
petitive and industry environment and the Company’s goals and strategies.

Director Qualifications and the Nominations Process

The Nominating and Governance Committee believes that the nominees presented in this proxy statement
would constitute a Board with an appropriate level and diversity of experience, education, skills, and
independence. The Nominating and Governance Committee routinely considers the current composition of the
Board, and whether changes should be made or additional directors should be added to the Board.

The Nominating and Governance Committee supervises the nomination process for directors. It considers
the performance, independence, diversity, and other characteristics of our incumbent directors, including their
willingness to serve, and any change in their employment or other circumstances in considering their renomina-
tion each year. The Nominating and Governance Committee also considers diversity of background and experi-
ence as well as gender and other forms of diversity. We do not, however, have any formal policy regarding
diversity in identifying nominees for a directorship, but rather we consider it among the various factors relevant
to any particular nominee and the overall needs of the Board. In the event that a vacancy exists or it decides to
increase the size of the Board, the Nominating and Corporate Governance Committee identifies, interviews and
examines, and make recommendations to the Board regarding, appropriate candidates.

The Nominating and Governance Committee identifies potential candidates principally through suggestions
from the Company’s directors and senior management. The committee may also seek candidates through
informal discussions with third parties. We have not historically retained search firms to help identify director
candidates, and did not do so in identifying this year’s nominees.

In evaluating potential candidates, the Nominating and Governance Committee considers, among other fac-
tors, independence from management, experience, expertise, commitment, diversity, number of other public
company board and related committee seats held, potential conflicts of interest, and the composition of the Board
at the time of the assessment. All candidates for nomination must:

• demonstrate strong character and integrity;

• have sufficient time to carry out their duties;

• have experience at senior levels in areas of expertise helpful to the Company and consistent with the

objective of having a diverse and well-rounded Board; and

• have the willingness and commitment to assume the responsibilities required of a director of the Com-

pany.

In addition, candidates expected to serve on the Audit Committee must meet independence and financial
literacy qualifications imposed by NASDAQ and by the SEC and other applicable law. Candidates expected to
serve on the Nominating and Governance Committee or the Compensation Committee must meet independence
qualifications set out by NASDAQ, and members of the Compensation Committee must also meet additional
independence tests under SEC rules. The evaluation process of potential candidates also includes personal inter-
views, and discussions with appropriate references. Once the Nominating and Governance Committee has
selected a candidate, it recommends the candidate to the full Board for election if a vacancy occurs or is created

12

by an increase in the size of the Board during the course of the year, or for nomination if the director is to be first
elected by shareholders. All directors serve for one-year terms and must stand for re-election annually.

The Board does not currently have any specific policies regarding the consideration of director candidates
recommended by shareholders and will consider shareholder recommendations for directors using the process
and criteria set forth above. Further, the Nominating and Governance Committee may, in its discretion, adopt
policies in the future regarding the consideration of director candidates recommended by shareholders. Share-
holder recommendations for Board candidates must be directed in writing to the Company at 325 John H.
McConnell Boulevard, Suite 200, Columbus, Ohio 43215, Attention: Secretary, and must include the candidate’s
name, home and business contact information, detailed biographical data and qualifications, information regard-
ing any relationships between the candidate and us within the last three years, and evidence of the recommending
person’s ownership of our common shares.

Certain Relationships and Related Person Transactions

The Board recognizes that related person transactions present a heightened risk of conflicts of interest. We
currently have no related person transactions reportable pursuant to Item 404(a) of SEC Regulation S-K, and has
not had any such transactions in the recent past. As such, we do not believe it is necessary to have a written
policy specifically dealing with related person transactions. The Audit Committee will review any potential
related person transactions as they arise and are reported to the Board or the Audit Committee, regardless of
whether the transactions are reportable pursuant to Item 404. No such transactions arose or were reviewed by the
Audit Committee in 2011. For any related person transaction to be consummated or to continue, the Audit
Committee must approve or ratify the transaction.

EXECUTIVE OFFICERS AND COMPENSATION INFORMATION

R. H. Dillon and James F. Laird are the Company’s only named executive officers. Their experience is
described above under the heading “PROPOSAL 1 — ELECTION OF DIRECTORS.” The Company has no
executive officers other than our named executive officers. Each named executive officer devotes his full time
and effort to the affairs of the Company.

Compensation Discussion and Analysis

Background

We are in the investment management industry. Human capital is the most important resource of companies
in our industry. Attracting and retaining employees can be more difficult in our industry than in others because of
how heavily our industry depends on the contributions of talented individuals. We have been able to attract and
retain high-quality employees due to:

• our investment-centric culture,

• employee ownership in our business,

• our central Ohio location, and

• the nationally-competitive compensation we offer to our employees.

Compensation, which is a critical element in a business dependent on talented employees, has a particularly
significant impact on profitability in industries like ours that are not capital intensive. This requires a balancing
of the economics between increasing our operating profit margin and rewarding the employees who generate our
profits and produce investment results for our clients. The balancing effort is particularly challenging for us
because we were essentially a start-up in May 2000, but yet had the unusual legacy of being a publicly owned
company, in contrast to the industry norm of partnership-like structures for investment management firms of
similar size. As of February 28, 2012, employees and directors owned approximately 31% of the Company. In
contrast, many competitor firms are owned entirely by their employees. Despite our unique ownership structure
given our industry, we believe that industry norms are helpful benchmarks for evaluating the balancing effort.

13

At our 2011 Annual Meeting of Shareholders, we asked our shareholders to vote upon an advisory reso-
lution to approve the compensation of our executive officers. The compensation of our executive officers was
approved by 94% of the votes cast on the matter. The Compensation Committee of the Board (the “Committee”)
believes that the results of the advisory vote on executive compensation are supportive of our previous
compensation practices and of its overall judgment related to the compensation practices of the Company and
considered that endorsement in establishing the compensation awarded to our executive officers for 2011.

Compensation Program Objectives

We seek to attract and retain people with integrity, intelligence and energy. All employees are paid a com-
petitive base salary, provided with competitive benefits and participate in an annual cash and equity incentive
compensation program. The amount of individual incentive awards is based on an assessment of individual per-
formance, while the amount of the overall available incentive pool is based on (i) overall firm investment and
operating results, (ii) market compensation data and (iii) the profitability of the firm compared to other invest-
ment management firms.

In addition to annual incentive compensation, upon commencing employment with the Company most
employees were awarded equity grants as an incentive to their continued employment. Generally these awards
vest over five years to promote employee retention and long-term employee ownership. The Company also seeks
to increase the equity ownership in the Company of all employees because it believes such ownership encourages
all employees to act and think like owners. While compensation amounts differ depending upon position,
responsibilities, performance and competitive data, the Company seeks to reward all employees with similar
compensation components based on these same objectives.

Rewards Based on Performance

Our primary business objective is to meet our fiduciary duty to clients. Specifically, the focus is on long-
term, five-year investment returns, with goals defined as rolling five-year periods in which client returns are
sufficiently above relevant passive benchmarks, rank in the top quartile of similar investment strategies and
exceed a sufficient absolute return for the risk associated with the asset class. As it relates to our investment pro-
fessionals, the compensation program is designed to reward performance that supports these objectives. For those
employees who are not a part of our investment team, the compensation program varies but is based on reward-
ing individual performance that helps us meet our fiduciary duty to clients. Our second objective is to fulfill our
fiduciary duty to shareholders by managing the firm and its assets to increase shareholder value over time.

Compensation Setting Process

Role of the Compensation Committee

The Committee has overall responsibility for evaluating and approving the structure, operation and effective-
ness of the Company’s compensation plans, policies and programs for all employees. The Committee consists of
Peter J. Moran, Donald B. Shackelford, and Frances A. Skinner. Ms. Skinner serves as Chair. Each member of
the Committee is an “outside director” for purposes of Section 162(m) of the Internal Revenue Code and a “non-
employee director” for purposes of Section 16(b) of the Securities Exchange Act of 1934. The Committee is
specifically charged to:

• review and approve the corporate goals and objectives relevant to the compensation of the CEO, to eval-
uate the CEO’s performance in light of these goals and objectives, and, based on this evaluation, make
recommendations to the Board for the independent directors to approve the CEO’s compensation level
(including any long-term incentive or other compensation under any incentive-based or equity-based
compensation plan);

• review management’s recommendations and make recommendations to the Board with respect to director
and other non-CEO executive officer compensation; provided, however, that the Committee has full
decision-making authority with respect to compensation intended to be performance-based compensation
within the meaning of Section 162(m) of the Internal Revenue Code;

14

• retain compensation consultants as it deems necessary to assist in its evaluation of director, CEO or other
senior executive compensation programs or arrangements. The Committee also has the authority to obtain
advice and assistance from internal or external legal, accounting or other advisors;

• review management’s recommendations and make recommendations to the Board with respect

to
incentive-based compensation and equity-based compensation plans and programs that are subject to
Board approval, and that may be applicable to all or any portion of the employees of the Company and/or
its subsidiaries; and

• exercise all power and authority of the Board in the administration of equity-based incentive compensa-

tion plans.

The Committee considers the sum of all pay elements when reviewing annual compensation recom-
mendations for the named executive officers. Although the framework for compensation decision-making is tied
to the Company’s overall financial performance and the creation of long-term shareholder value, the Committee
retains discretion to make recommendations to the Board for the independent directors to approve individual
compensation based on other performance factors such as demonstrated management and leadership capabilities
and the achievement of certain investment results for client accounts and other strategic operating results.

Role of Management

The Company’s CEO evaluates the CFO as part of the annual review process and makes recommendations
to the Committee regarding all elements of executive compensation paid to him. Changes in executive
compensation proposed by the CEO are based on the CFO’s performance, the compensation of individuals with
comparable responsibilities in competing or similar organizations, and the profitability of the Company. At the
Committee’s request, the CEO and CFO attend Committee meetings to provide general employee compensation
and other information to the Committee, including information regarding the design, implementation and admin-
istration of the Company’s compensation plans. The Committee also meets in executive sessions without the
presence of any executive officer whose compensation the Committee is scheduled to discuss.

Use of Compensation Consultants and Surveys in Determining Executive Compensation

The Committee’s written charter gives it the authority to retain an independent outside executive compensa-
tion consulting firm to assist in evaluating policies and practices regarding executive compensation and provide
objective advice regarding the competitive landscape. However, historically the Committee has not engaged
compensation consultants and did not do so in 2011.

Each year the Committee obtains and summarizes an asset management industry pay analysis prepared by
McLagan Partners, a compensation specialist focusing on the asset management industry. The companies in the
McLagan Partners’ analysis include over 100 public and private asset management companies with which the
Company competes. This analysis provides the Committee with a general overview of compensation trends in the
asset management industry. The Committee does not define a specific peer group, but rather takes a broad view
of the analysis. The Committee does not set any compensation elements or levels based on targeting a certain
percentile from the survey, but rather sets compensation that it believes to be both competitive and based on the
executive’s value to the Company. The survey is just one of many factors that the Committee considers when
determining executive compensation. Management and the Committee believe this broad view of the analysis is
appropriate because the Company competes with both public and private asset management firms regardless of
their size and scope of operations.

Elements of Compensation

Base Salary

Base salaries for the named executive officers are intended to provide a fixed level of cash compensation
that is appropriate given the executive’s role in the organization. Generally, base salaries are determined by
(i) scope of responsibility and complexity of position, (ii) performance history, (iii) tenure of service, (iv) internal
equity within the Company’s salary structure, and (v) relative salaries of persons holding similar positions at

15

companies within the investment management industry. Base salaries are designed to compensate knowledge and
experience. In December 2010, the Committee made the determination not to increase the base salaries of the
named executive officers for fiscal year 2011. Consistent with the Company’s desire to have the majority of total
compensation paid to named executive officers at risk in the form of incentive compensation, only four and 20.5
percent of the total compensation of our CEO and CFO, respectively, in fiscal 2011 (as shown in the Summary
Compensation table) was paid in the form of base salaries.

Annual Cash Bonuses

In March 2011, the Company entered into an amendment and restatement of its employment agreement with
R. H. Dillon, the Company’s President and CEO. The Company agreed to amend and restate Mr. Dillon’s
employment agreement to reflect the mutual desire of the Company and Mr. Dillon that he remain CEO for the
next five years. The amended and restated agreement entitles Mr. Dillon to, among other things, an annual cash
bonus equal to at least 5% of the Company’s operating income, subject to an annual cap of $640,000. Mr. Dillon
earned a $640,000 cash bonus for 2011 because 5% of the Company’s operating income for 2011 exceeded
$640,000. The Committee believes this formula to determine a cash bonus is appropriate because it ties the
amount of the bonus to operating income, but also caps the award at an amount that Mr. Dillon and the Commit-
tee believes is appropriate given broad market compensation data and the additional value of the separate
restricted stock award to Mr. Dillon in 2011 (which is described in the following section).

The Committee awarded a discretionary cash bonus to Mr. Laird, the Company’s CFO, to reward him for
his strong performance and overall contributions to the Company in fiscal 2011. The Committee believes that
structuring Mr. Laird’s annual cash bonus as a discretionary cash bonus provides the Committee with the flexi-
bility to consider all aspects of Mr. Laird’s performance and contributions to the Company and properly compen-
sate him for the relative value he provided to the Company in fiscal 2011. In determining the amount of the cash
bonus, the Committee considered the Company’s overall operating results, contributions by Mr. Laird that may
not be reflected in the operating results, and broad market compensation data.

Restricted Stock Award

In May 2011, the Company awarded 100,000 shares of performance-based restricted stock to Mr. Dillon
pursuant to the Company’s 2011 Equity and Cash Incentive Plan. All of the shares will vest on January 1, 2016 if
the Company’s cumulative operating profit (defined as the Company’s total revenue during the period beginning
on January 1, 2011 and ending on December 31, 2015, excluding any investment income and gains and the rev-
enue of the Company’s subsidiaries Beacon Hill Fund Services, Inc. and BHIL Distributors, Inc. (collectively,
less the Company’s total operating expenses during such period, excluding Beacon Hill
“Beacon Hill”),
expenses, any investment losses and all taxes) equals or exceeds $75,000,000. The results of Beacon Hill are
excluded from the cumulative operating profit because it is a separate subsidiary of the Company and is not yet
material to the overall financial results of the Company. If the Company’s cumulative operating profit during
such period is less than $75,000,000, a number of shares of restricted stock equal to 100,000 multiplied by a frac-
tion, the numerator of which will be the Company’s actual cumulative operating profit during such performance
period and the denominator of which will be $75,000,000, will vest on January 1, 2016. Any shares of restricted
stock that remain unvested will be forfeited on such date. All shares of restricted stock that vest on January 1,
2016 will remain subject to restrictions on sale or transfer following the vesting date. The restrictions on sale or
transfer will lapse with respect to 20% of the vested shares of restricted stock on each anniversary of the vesting
date. If Mr. Dillon dies or is disabled prior to December 31, 2015, a number of shares of restricted stock equal to
100,000 multiplied by a fraction, the numerator of which will be the number of whole months of service elapsed
between January 1, 2011 and the date of death or disability and the denominator of which will be 60, will vest
and become immediately transferable without restriction. If Mr. Dillon’s employment is terminated prior to Jan-
uary 1, 2016 without Cause or for Good Reason (each as defined in Mr. Dillon’s amended and restated employ-
ment agreement), a number of shares of restricted stock equal to 100,000 multiplied by the lesser of (i) a fraction,
the numerator of which will be the Company’s actual cumulative operating profit during the period beginning on
January 1, 2011 and ending on the date of termination of employment and the denominator of which will be
$75,000,000, and (ii) a fraction, the numerator of which will be the number of whole months of service elapsed

16

between January 1, 2011 and the date of termination of employment and the denominator of which will be 60,
will vest and become immediately transferable without restriction. In the event of a Change in Control (as
defined in Mr. Dillon’s amended and restated employment agreement), all 100,000 shares of restricted stock will
immediately vest and become transferable without restriction.

This restricted stock award is intended to comprise all of Mr. Dillon’s equity-based compensation for the
2011 fiscal year through the 2015 fiscal year and no additional equity awards to Mr. Dillon during that period are
contemplated. The Committee believes this compensation structure will strongly align the long-term interests of
Mr. Dillon with those of the Company and its shareholders and better advances the objectives of our compensa-
tion program than the annual compensation structure used in prior years.

Stock Award

The Committee awarded a discretionary stock award to Mr. Laird to reward him for his strong performance
and overall contributions to the Company in fiscal 2011. The Committee believes that a discretionary stock bonus
to Mr. Laird provides the Committee with the flexibility to consider all aspects of Mr. Laird’s performance and
contributions to the Company and properly compensate him for the relative value he provided to the Company in
fiscal 2011. In addition, this stock award, while immediately vested, is restricted from sale or transfer for five
years, which the Committee believes strongly aligns the long-terms interests of Mr. Laird with those of the
Company and its shareholders. In determining the amount of the stock award, the Committee considered the
Company’s overall operating results, contributions by Mr. Laird that may not be reflected in the operating
results, and broad market compensation data.

Retirement Plan Benefits

The Company provides retirement benefits through the Diamond Hill Investment Group 401k Plan. The
named executive officers are entitled to participate in this plan on the same terms and conditions as all other
employees. The plan does not involve any guaranteed minimum or above-market returns, as plan returns depend
on actual investment results.

Other Benefits and Perquisites

The Company does not provide supplemental retirement plan benefits or non-qualified compensation plans
to the named executive officers. As a general rule, the Company does not provide any perquisites or other
personal benefits to its named executive officers that are not offered on an equal basis to all employees. The
Company’s named executive officers are entitled to participate in benefit programs that entitle them to medical,
dental, and short-term and long-term disability insurance coverage that are available to all employees.

Post Employment Payments

Only the CEO has an employment contract which provides for payments upon termination of employment.
More information on the employment agreement with our CEO and termination payments thereunder is set forth
under the heading “Employment Agreements and Change in Control Benefits.”

Stock Ownership Guidelines

In February 2010, the Board adopted stock ownership guidelines for our Named Executive Officers to fur-
ther align their interests with those of shareholders. This policy provides that our named executive officers are
expected to reach levels of ownership (determined as a stated multiple of base salary) within five years after the
adoption of the guidelines or, if later, within five years from the date when the executive assumed his or her posi-
tion. The below table provides the target ownership level and actual shares owned as of December 31, 2011. Both
of the named executive officers hold shares well in excess of the amounts required under the guidelines.

Name

Title

Target
Ownership
Level

Target
Number of
Shares(a)

Number of
Shares
Owned

Ownership
Guideline Met

R. H. Dillon . . . . . . . . . . . . . . . . . . . President and CEO
James F. Laird . . . . . . . . . . . . . . . . . Chief Financial Officer

5x Salary
3x Salary

24,331
8,110

300,574
76,328

Yes
Yes

17

(a) Based on a per share price of $73.98, which was the closing price of our common shares on December 31,

2011, and the respective base salaries of our named executive officers as of that date.

Risks Related to Compensation Policies and Practices

As part of its oversight of the Company’s executive and non-executive compensation programs, the Compen-
sation Committee considers how current compensation programs, including the incentives created by compensa-
tion awards, affect the Company’s risk profile. In addition, the Company reviews its compensation policies,
particularly the incentives that they create, to determine whether they encourage an appropriate level of risk-
taking and do not present a significant risk to the Company. The Compensation Committee also considered the
following risk mitigating factors:

• current compensation programs reward portfolio managers and research analysts on trailing five year

investment performance in client accounts;

• a majority of incentive compensation is in the form of equity-based awards;

• sale restriction periods for equity-based compensation awards encourage executives and other employees

to focus on the long-term performance of the Company;

• the Committee’s discretionary authority to adjust annual incentive awards, which helps mitigate business

risks associated with such awards;

• the Company’s internal control over financial reporting and other financial, operational and compliance

policies and practices currently in place; and

• base salaries consistent with executives’ responsibilities so that they are not motivated to take excessive

risks to achieve a reasonable level of financial security.

Based on this review, the Company has concluded that its compensation policies and procedures are not

reasonably likely to have a material adverse effect on the Company.

Summary Compensation Table for 2011

The following table sets forth the total compensation paid to or earned by our named executive officers in
the years indicated. Additional information on the elements of compensation included in the table below is avail-
able under the “Compensation Discussion and Analysis” section.

Name
and Principal
Position

Year

Salary

Bonus
(1)

Stock Awards

Non-Equity
Incentive Plan
Compensation
(4)

All Other
Compensation
(5)

R. H. Dillon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2011 $360,000 $640,000 $7,997,000(2)

President and CEO

2010 $360,000
2009 $360,000

—
— $2,050,000(3) $350,000
— $1,500,000(3) $500,000

James F. Laird . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2011 $200,000 $250,000 $ 500,000(3)
—
$ 550,000(3
$150,000
$ 395,000(3) $170,000

Secretary, Treasurer and
Chief Financial Officer

2010 $200,000
2009 $200,000

Total

$9,031,200
$2,794,200
$2,394,200

$ 976,400
$ 926,400
$ 791,400

$34,200
$34,200
$34,200

$26,400
$26,400
$26,400

(1) Mr. Dillon was granted a bonus award in accordance with the terms of his employment contract. Mr. Laird
was granted a discretionary bonus award from a Company bonus pool, which was not based upon any
pre-established performance goals. See the “Compensation Discussion and Analysis” section above for a
further description of Mr. Dillon and Mr. Laird’s cash bonus awards for fiscal 2011.

(2) Represents the full grant date fair value computed by multiplying the total number of shares of restricted
stock granted by the closing price of our common shares on the grant date. This award represents 100,000
shares of restricted stock awarded to Mr. Dillon on May 2, 2011 as part of a long-term performance-based
incentive program under the 2011 Equity and Cash Incentive Plan. This award represents the stock portion of
Mr. Dillon’s incentive compensation for the years 2011 through 2015. These shares will vest on January 1,

18

2016 subject to the achievement of performance goals established by the Compensation Committee and
described above in the “Compensation Discussion & Analysis” section. The value shown is based on what
we currently believe to represent the probable outcome of the applicable performance goals. Any shares that
vest on January 1, 2016 will be subject to further restrictions from transfer or sale in accordance with the
following schedule:

Percentage of Vested Shares Available for Transfer or Sale

January 1, 2017

January 1, 2018

January 1, 2019

January 1, 2020

January 1, 2021

20%

40%

60%

80%

100%

(3) Represents the full grant date fair value computed by multiplying the total number of shares granted by the
closing price of the shares on the grant date. These shares were awarded to Messrs. Dillon and Laird as
partial payment for amounts earned under our 2011, 2010 and 2009 annual incentive plans. All shares were
fully vested on the grant date but were restricted from sale for a period of time. The below table shows the
details of the specific number of shares granted for each annual incentive plan year:

Name

Incentive Plan Year

Shares Granted

Grant Date

Sale Restriction Period

R. H. Dillon . . . . . . .

James F. Laird . . . . .

2010
2010
2009
2009

2011
2010
2010
2009
2009

4,054
23,645
21,502
2,801

6,493
4,054
3,378
4,999
1,401

February 24, 2011
February 24, 2011
February 17, 2010
February 17, 2010

February 22, 2012
February 24, 2011
February 24, 2011
February 17, 2010
February 17, 2010

One Year
Five Years
One Year
Five Years

Five Years
One Year
Five Years
One Year
Five Years

The stock awards made to the named executive officers for 2010 and 2009 were made pursuant to our annual
incentive plan for those years under the Company’s 2005 Employee and Director Equity Incentive Plan (the
“2005 Plan”), which is an equity compensation plan that was approved by the Company’s shareholders at its
2005 annual meeting. The stock awards made pursuant to the 2005 Plan were based upon the achievement of
a specific performance target for the Company. The performance target was determined at the beginning of
each performance period, taking into the consideration the performance target from the prior year, forecasted
revenue, and the requirements of Section 162(m) of the Internal Revenue Code. The stock award made to
Mr. Laird for 2011 was a discretionary award and shares were issued under the Company’s 2011 Cash and
Equity Incentive Plan.

(4) Represents cash awards paid to Messrs. Dillon and Laird as partial payment for amounts earned under our
2010 and 2009 annual incentive plans. These awards were made pursuant to our 2006 Performance-Based
Compensation Plan (the “2006 Plan”), a shareholder-approved incentive compensation plan designed to sat-
isfy the requirements of Section 162(m) of the Internal Revenue Code. These awards were based upon the
achievement of a specific performance target for the Company. The performance target was determined at
the beginning of each performance period, taking into the consideration the performance target from the prior
year, forecasted revenue, and the requirements of Section 162(m) of the Internal Revenue Code.

19

(5) The following types of compensation are included in the all other compensation column:

Name

R. H. Dillon . . . . . . . . . . . . . . . . . . . . . .

James F. Laird . . . . . . . . . . . . . . . . . . . .

Contributions to
Company 401k Plan
(a)

Contributions to Health
Savings Account
(a)

$29,400
$29,400
$29,400

$24,000
$24,000
$24,000

$4,800
$4,800
$4,800

$2,400
$2,400
$2,400

Year

2011
2010
2009

2011
2010
2008

Total

$34,200
$34,200
$34,200

$26,400
$26,400
$26,400

(a) Company contributions to the Company 401k Plan and employee Health Savings Accounts are offered to all

employees of the Company and its affiliates.

Grants of Plan Based Awards for 2011. The following table sets forth information regarding annual

incentive plan awards to each of the named executive officers for the year ended December 31, 2011.

Name

Grant
Date(1)

Compensation
Committee
Action Date(1)

Estimated Possible Payouts
Under Non-Equity Incentive
Plan Awards

Estimated Possible Payouts
Under Equity Incentive
Plan Awards(2)

Threshold Target Maximum Threshold # Target # Maximum #

All
Other
Stock
Awards:
Number Of
Shares Of
Stock Or
Units

All Other
Option
Awards:
Number of
Securities
Underlying
Options

Exercise
Or Base
Price of
Option
Awards

Grant
Date Fair
Value of
Stock and
Option
Awards $

R.H. Dillon . . . . . . . . . . 5/2/11

3/22/11

—

—

—

— 100,000 — —

—

— 7,997,000

(1) The Compensation Committee Action Date represents the date on which the Committee authorized the
equity-based award. This approval was subject to shareholders approval of the 2011 Cash and Equity
Incentive Plan and an effective registration of the shares authorized thereunder. The grant date represents the
date on which both the 2011 Cash and Equity Incentive Plan was approved and the shares authorized there-
under were properly registered.

(2) The amount in this column represents shares of restricted stock awarded pursuant to the 2011 Equity and
Cash Incentive, which award is described in detail above under the heading “Compensation Discussion and
Analysis.”

Outstanding Equity Awards at December 31, 2011. The following table summarizes all outstanding
equity awards held by our named executive officers as of December 31, 2011. Mr. Laird had no outstanding
equity awards at December 31, 2011.

Name

Stock Awards

Equity Incentive Plan Awards:
Number of Unearned Shares
That have Not Vested(1)

Equity Incentive Plan Awards:
Market or Payout Value of
Unearned Shares That Have
Not Vested(2)

R. H. Dillon . . . . . . . . . . . . . . . . . . . . . . . . . .

100,000

$7,398,000

(1) The amount in this column represents shares of restricted stock awarded pursuant to the 2011 Plan, which
award is described in detail above under the heading “Compensation Discussion and Analysis.” These shares
will vest on January 1, 2016, subject to the achievement of performance goals established by the Compensa-
tion Committee and Mr. Dillon’s continued employment by the Company on that date.

(2) Amount reflects the value of the shares of restricted stock shown multiplied by $73.98, the closing market

price of the Company’s common shares as of December 31, 2011.

20

Option Exercises and Stock Vested for 2011. Neither Mr. Dillon nor Mr. Laird exercised any options
during 2011. The table below sets forth information regarding the vesting during 2011 of stock awards made to
Mr. Dillon and Mr. Laird.

Name

Stock Awards(1)

Number of Shares
Acquired on Vesting

Value Realized
on Vesting(2)

R.H. Dillon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
James F. Laird . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27,699
7,431

$2,050,000
$ 550,000

(1) Reflects stock awards under the 2005 Plan to Messrs. Dillon and Laird as partial payment for amounts earned
under the 2010 annual incentive plan. Although the amounts were earned for performance in 2010, the shares
were not actually awarded until 2011. These awards were immediately vested on the date of grant, although
they were restricted from sale for a period of one year or five years. For more information on these awards
see the “Summary Compensation Table” and the “Summary Compensation Table” above.

(2) The value realized is the number of shares vested, multiplied by the closing price of the shares on the grant

date because they were immediately vested.

Pension Plans and Non-Qualified Deferred Compensation.

The Company does not maintain any pension plans or non-qualified deferred compensation programs for

executives or employees.

Employment Agreements and Change In Control Benefits.

The Company currently has an employment agreement with Mr. Dillon. A description of the agreement is
set forth below. The Company is not a party to any employment agreement with any other employees and is not
obligated to provide change in control benefits to any employee other than Mr. Dillon.

Employment Agreement with Mr. Dillon.

In March 2011, the Company entered into an amended and
restated employment agreement with Mr. Dillon, the Company’s President and CEO. The agreement has a cur-
rent expiration date of January 1, 2016. The agreement provides for an annual salary of $360,000, which may be
increased (but not reduced) by the Board annually, plus an annual cash bonus of at least 5% of the Company’s
operating income, with a maximum annual cash bonus of $640,000 and a minimum annual cash bonus of $0.
Mr. Dillon also received a restricted stock award of 100,000 shares that vests on January 1, 2016 if performance
criteria established by the Compensation Committee are satisfied and Mr. Dillon remains employed by the
Company on that date. The performance criteria and vesting provisions of Mr. Dillon’s restricted stock award are
discussed more thoroughly in the “Compensation Discussion and Analysis” section above. Mr. Dillon’s
employment agreement also entitles him to receive health insurance and six weeks paid vacation annually and
participate in other benefit programs offered to employees. The agreement also restricts Mr. Dillon from compet-
ing with the Company during the term of the agreement and for one year following termination of his employ-
ment and provides that he will at all times maintain the confidentiality of Company information.

If the Company terminates Mr. Dillon’s employment without Cause (as defined in the amended and restated
employment agreement), he would be entitled to the following payments, which are quantified to reflect the
amounts he would have received had his employment been terminated at December 31, 2011:

1. his accrued but unpaid base salary and vacation and unreimbursed business expenses as of the date

of termination ($0 at December 31, 2011);

2. payments, if any, under other benefit plans and programs in effect at the time (the Company cur-

rently has no benefit plans that would result in payments upon termination);

3. a single lump sum payment equal to six months base salary at his annual salary rate in effect at the

date of termination ($180,000 at December 31, 2011);

21

4. beginning in the seventh month after the date of termination, six monthly payments of his monthly

base salary ($180,000 at December 31, 2011);

5. any portion of the restricted stock award of 100,000 shares as provided in the award agreement those

shares were granted under (20,000 shares at December 31, 2011);

6. a lump sum payment equal to the amount, if any, he received as an annual cash bonus for the preced-

ing year ($0 at December 31. 2011);

7. his accrued but unpaid annual cash bonus from the year prior to the date of termination ($0 at

December 31, 2011); and

8. a pro rata portion of the annual cash bonus ($640,000 at December 31, 2011).

Mr. Dillon may terminate his employment for “Good Reason,” (as defined in the amended and restated
employment agreement) which generally includes reduction of his annual base salary or annual cash bonus,
permanent or consistent assignment to him of duties inconsistent with his position and authority, no longer hav-
ing him report directly to the Board or a breach by the Company of his employment agreement. If he terminates
his employment for good reason, Mr. Dillon is entitled to all of the payments to which he would be entitled in the
event he is terminated without Cause, except for the payment set forth in number 7 above.

If Mr. Dillon’s employment terminates due to his death or disability, upon the expiration of the employment
agreement in accordance with its terms or the Company terminates Mr. Dillon for “Cause,” he will be entitled to
receive the payments set forth in numbers 1 and 2 above. In the event of his death or disability, he will also
receive the payments described in number 5 and number 8 above and in the event of disability, he will also
receive the payments described in number 7 above. Under the employment agreement, “Cause” generally
includes material violations of the Company’s employment policies, conviction of crime involving moral turpi-
tude, violations of securities or investment adviser laws, causing the Company to violate a law which may result
in penalties exceeding $250,000, materially breaching the employment agreement or fraud, willful misconduct or
gross negligence in carrying out his duties.

In the event of a Change in Control (as defined in Mr. Dillon’s amended and restated employment
agreement), all 100,000 shares of restricted stock would immediately vest and become transferable without
restriction in accordance with the terms of the award agreement applicable to the restricted stock award.
Additionally, if within 24 months after the occurrence of a change in control Mr. Dillon’s employment is termi-
nated by the Company for any reason other than death, disability or for Cause, or Mr. Dillon terminates his
employment for “Good Reason,” he will be entitled to the following payments from us or our successor, in addi-
tion to the applicable payments set forth in numbers 1 through 8 above:

• a single lump sum payment equal to his annual base salary and annual cash bonus payable to him for the

most recently completed fiscal year ($1,000,000 at December 31, 2011); and

• a single lump sum payment equal to 12 months of premium payments for coverage for Mr. Dillon and his

family under our group health plan ($4,513 at December 31, 2011).

If any payments to Mr. Dillon in connection with a change in control would constitute excess parachute
payments under applicable tax laws, Mr. Dillon will receive gross-up payments in an amount that covers any
taxes, interest, penalties, additional taxes or costs incurred and leaves Mr. Dillon with the amount he would have
retained if the payments he received upon the change of the control had not constituted excess parachute pay-
ments.

22

REPORT OF THE COMPENSATION COMMITTEE

The Board’s Compensation Committee has submitted the following report for inclusion in this Proxy State-

ment:

We have reviewed and discussed the Compensation Discussion and Analysis contained in this Proxy State-
ment with management. Based on such review and discussion, we recommended that the Compensation Dis-
cussion and Analysis be included in this Proxy Statement and the Company’s Annual Report on Form 10-K for
the year ended December 31, 2011.

Submitted by the Compensation Committee of the Board of Directors:

Frances A. Skinner, Chair
Donald B. Shackelford
Peter J. Moran

23

PROPOSAL 2:
RATIFICATION OF THE APPOINTMENT OF PLANTE & MORAN PLLC AS OUR INDEPENDENT
REGISTERED PUBLIC ACCOUNTING FIRM FOR 2012

The Audit Committee has again retained Plante & Moran as the Company’s independent registered public
accounting firm for the 2012 fiscal year, and is asking that our shareholders ratify this appointment. Plante &
Moran has served as our independent registered public accounting firm since November 2005.

Representatives of Plante & Moran are expected to be present at the Annual Meeting to respond to appro-

priate questions from shareholders and to make such statements as they may desire.

THE BOARD UNANIMOUSLY RECOMMENDS THAT YOU VOTE “FOR” THE RAT-
IFICATION OF THE APPOINTMENT OF PLANTE & MORAN AS OUR INDEPENDENT REGIS-
TERED PUBLIC ACCOUNTING FIRM FOR 2012.

If Proposal 2 is not approved, the Audit Committee will reconsider the appointment of Plante & Moran as

our independent registered public accounting firm for 2012.

Disclosure of Fees Charged by the Independent Registered Public Accounting Firm

The following table summarizes the fees billed by Plante & Moran for services rendered to the Company

and its subsidiaries during 2010 and 2011.

Year Ended
12/31/2011

Year Ended
12/31/2010

Audit Fees(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audit-Related Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax Fees(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
All Other Fees(3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 78,000
—
$ 27,000

$ 75,750
—
$ 26,850
— $ 15,000

Total Plante & Moran Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$105,000

$117,600

(1) Audit fees include professional services rendered for the audit of annual financial statements, reviews of
quarterly financial statements, issuance of consents, and assistance with review of other documents filed with
the SEC.

(2) Tax fees include services related to tax compliance, tax advice and tax planning including the preparation of

tax returns and assistance with tax audits.

(3) Other fees include services related to assisting management with calculating the Company’s “earnings and

profits” in order to determine the proper tax character of the special dividends paid.

Preapproval by Audit Committee

The Audit Committee pre-approves the audit and non-audit services provided by the independent registered
public accounting firm to ensure that the provision of the services does not impair the firm’s independence. All
services disclosed above were pre-approved by the Audit Committee.

REPORT OF THE AUDIT COMMITTEE

The Audit Committee is comprised of three independent directors operating under a written charter adopted
by the Board. Annually, the Audit Committee engages the Company’s independent registered public accounting
firm. Plante & Moran served as the Company’s independent registered public accounting firm for the year ended
December 31, 2011.

Management is responsible for preparation of the Company’s financial statements and for designing and
maintaining the Company’s systems of internal controls and financial reporting processes. The Company’s
independent registered public accounting firm is responsible for performing an audit of the Company’s con-
solidated financial statements in accordance with standards of the Public Company Accounting Oversight Board

24

and issuing reports on the Company’s financial statements and the effectiveness of the Company’s internal con-
trols over financial reporting. The Audit Committee’s responsibility is to provide independent, objective over-
sight of these processes.

Pursuant to this responsibility, the Audit Committee met with management and Plante & Moran throughout
the year. The Audit Committee reviewed the audit plan and scope with Plante & Moran and discussed with them
the matters required by Statement on Auditing Standards No. 114 (The Auditor’s Communication with Those
Charged with Governance), as may be amended from time to time. The Audit Committee also met with Plante &
Moran without management present to discuss the results of their audit work, their evaluation of the Company’s
system of internal controls and the quality of the Company’s financial reporting.

The Committee also discussed with Plante & Moran its independence from management and the Company,
and received its written disclosures pursuant to applicable requirements of the PCAOB regarding the independent
accountant’s communication with the audit committee concerning independence.

Management has represented to the Audit Committee that the Company’s consolidated financial statements
for the year ended December 31, 2011, were prepared in accordance with United States generally accepted
accounting principles, and the Audit Committee reviewed and discussed the audited consolidated financial
statements with management and Plante & Moran. Based on the Audit Committee’s discussions with manage-
ment and Plante & Moran and review of Plante & Moran’s report to the Audit Committee, the Audit Committee
recommended to the Board of Directors (and the Board has approved) that the audited consolidated financial
statements be included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2011,
filed with the SEC.

Submitted by the Audit Committee of the Board of Directors:

David P. Lauer, Chairman
Lawrence E. Baumgartner
Frances A. Skinner

PROPOSAL 3:
ADVISORY VOTE ON THE COMPENSATION
OF THE COMPANY’S NAMED EXECUTIVE OFFICERS

The Dodd-Frank Wall Street Reform and Consumer Protection Act, enacted in July 2010, requires that we
provide our shareholders with the opportunity to vote to approve, on a non-binding, advisory basis, the
compensation of our executive officers identified in the Summary Compensation Table of this Proxy Statement
(the “named executive officers”) as disclosed in this Proxy Statement in accordance with the SEC’s rules.

As described in detail

in the section entitled, “EXECUTIVE OFFICERS AND COMPENSATION
INFORMATION”, we believe that executive compensation should be linked with the Company’s performance
and significantly aligned with the interests of the Company’s shareholders. In addition, our executive compensa-
tion program is designed to allow us to retain, and recognize the contributions of, employees who play a sig-
nificant role in our current and future success. We urge you to read the Compensation Discussion and Analysis,
the 2011 Summary Compensation Table and the other related tables and disclosure for a detailed description of
the fiscal year 2011 compensation of our named executive officers.

The vote on this resolution is not intended to address any specific element of compensation; rather, the advi-
sory vote relates to the overall compensation of our named executive officers. This vote is advisory and therefore
not binding on the Company. However, the Board and the Compensation Committee will review the voting
results and will take into account the outcome of the vote when determining future compensation for the Compa-
ny’s named executive officers.

25

Accordingly, we ask our shareholders to vote on the following resolution:

“RESOLVED, that the Company’s shareholders approve, on an advisory basis, the compensation of the
named executive officers, as disclosed in the Company’s Proxy Statement for the 2012 Annual Meeting of
Shareholders pursuant to the compensation disclosure rules of the Securities and Exchange Commission,
including the Compensation Discussion and Analysis, the 2011 Summary Compensation Table and the other
related tables and disclosure.”

THE BOARD UNANIMOUSLY RECOMMENDS THAT YOU VOTE “FOR” THE APPROVAL OF
THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS AS DISCLOSED IN THIS PROXY
STATEMENT PURSUANT TO THE COMPENSATION DISCLOSURE RULES OF THE SEC.

SHAREHOLDER COMMUNICATIONS WITH THE BOARD OF DIRECTORS

Given the Company’s relatively small size, the relatively small number of record shareholders, and the
Board’s consistent practice of being open to receiving direct communications from shareholders, the Board
believes that it is not necessary to implement, and we do not have, a formal process for shareholders to send
communications to the Board. Our practice is to forward any communication addressed to the full Board to the
Chairman, to a group of directors to a member of the group, or to an individual director, to that person.

SHAREHOLDER PROPOSALS FOR 2013 ANNUAL MEETING

Shareholders are entitled to submit proposals on matters appropriate for shareholder action consistent with
SEC rules and our Code of Regulations. Should a shareholder wish to have a proposal appear in the Proxy
Statement for next year’s annual meeting, under applicable SEC rules, the proposal must be received by the
Company’s Secretary on or before November 14, 2012, and must otherwise comply with the requirements of
Rule 14a-8 of the Exchange Act. If a shareholder intends to present a proposal at next year’s annual meeting but
does not intend to seek the inclusion of such proposal in our Proxy Statement, such proposal must be received by
the Company prior to January 28, 2013, or management proxies will be entitled to use discretionary voting
authority should such proposal be raised without any discussion of the matter in the Proxy Statement. The
Company’s address is 325 John H. McConnell Boulevard, Suite 200, Columbus, Ohio 43215.

SHAREHOLDERS SHARING THE SAME ADDRESS

The SEC has implemented rules regarding the delivery of proxy materials (i.e., annual reports, proxy state-
ments, proxy statements combined with a prospectus or any information statements provided to shareholders) to
households. This method of delivery, often referred to as “householding,” would generally permit the Company
to send a single annual report and a single proxy statement to any household at which two or more different
shareholders reside if the Company believes such shareholders share the same address, unless the shareholder(s)
have opted out of the householding process. Each shareholder would continue to receive a separate notice of any
meeting of shareholders and proxy card. The householding procedure reduces the volume of duplicate
information you receive and reduces expenses. The Company has instituted householding. If (i) you wish to
receive separate annual reports or proxy statements, either this year or in the future, or (ii) members of your
household receive multiple copies of the annual report and proxy statement and you wish to request house-
holding, you may contact the Company’s transfer agent, Continental Stock Transfer & Trust Company at 17
Battery Place, New York, New York 10004, or write to Mr. James Laird at 325 John H. McConnell Boulevard,
Suite 200, Columbus, Ohio 43215.

In addition, many brokerage firms and other holders of record have instituted householding. If your family
has one or more “street name” accounts under which our shares are beneficially owned, you may have received
householding information from your broker, financial institution or other nominee in the past. Please contact the
holder of record directly if you have questions, require additional copies of this Proxy Statement or Annual
Report on Form 10-K or wish to revoke your decision to household and thereby receive multiple copies. You
should also contact the holder of record if you wish to institute householding. These options are available to you
at any time.

26

OTHER BUSINESS

The Board knows of no other business to be acted upon at the Annual Meeting. However, if any other busi-
ness properly comes before the Annual Meeting, it is the intention of the persons named in the enclosed Proxy to
vote on such matters in accordance with their best judgment.

The prompt completion, execution, and delivery of your proxy card or your submission of voting
instructions electronically over the Internet or by telephone will be appreciated. Whether or not you expect to
attend the Annual Meeting, please complete and sign the Proxy and return it in the enclosed envelope, or vote
your proxy electronically via the Internet or telephonically.

By Order of the Board of Directors

James F. Laird
Secretary

27

United States Securities and Exchange Commission
Washington, D.C. 20549
Form 10-K
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2011

Commission file number 000-24498

DIAMOND HILL INVESTMENT GROUP, INC.

(Exact name of registrant as specified in its charter)

Ohio

(State of incorporation)

65-0190407

(I.R.S. Employer Identification No.)

325 John H. McConnell Blvd., Suite 200, Columbus, Ohio 43215

614-255-3333

(Address of principal executive offices) (Zip Code)

(Registrant’s telephone number)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Common shares, no par value

Name of each exchange on which registered

The NASDAQ Stock Market LLC

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities

Act. Yes ‘ No Í

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the

Act. Yes ‘ No Í

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of
the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes Í No ‘

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if
any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405
of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit
and post such files). Yes Í No ‘

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained
herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K ‘

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated
filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller
reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ‘ Accelerated filer Í

Non-accelerated filer ‘

Smaller reporting company ‘

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ‘ No Í

Aggregate market value of the registrant’s common shares (the only common equity of the registrant) held by
non-affiliates of the registrant, based on the closing price of $81.29 on June 30, 2011 on the NASDAQ Global Select
Market was $181,168,747. Calculation of holdings by non-affiliates is based upon the assumption, for these purposes
only, that the registrant’s executive officers and directors and persons holding five percent or more of the registrant’s
common shares are affiliates.

3,084,982 Common Shares outstanding as of March 7, 2012.

Documents incorporated by reference: Portions of the registrant’s definitive proxy statement for the 2012 Annual
Meeting of Shareholders to be filed pursuant to Regulation 14A under the Securities Exchange Act of 1934, as amend-
ed, are incorporated by reference into Part III of this report.

Diamond Hill Investment Group, Inc.
Form 10-K
For the Fiscal Year Ended December 31, 2011
Index

Required Information

Part I

Item 1. Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 1A. Risk Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 1B. Unresolved Staff Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 2. Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 3. Legal Proceedings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 4. Mine Safety Disclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Part II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of

Equity Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 6. Selected Financial Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations . . . . .
Item 7A. Quantitative and Qualitative Disclosures About Market Risk . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 8. Financial Statements and Supplementary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 9. Changes In and Disagreements With Accountants on Accounting and Financial Disclosures . . . .
Item 9A. Controls and Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 9B. Other Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Part III

Item 10. Directors, Executive Officers and Corporate Governance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 11. Executive Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder

Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Item 13. Certain Relationships and Related Transactions, and Director Independence . . . . . . . . . . . . . . .
Item 14. Principal Accounting Fees and Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Part IV

Item 15. Exhibits, Financial Statement Schedules

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page

1
6
8
8
8
8

9
10
11
18
20
34
34
34

35
35

35
35
35

36
37

PART I

Item 1.

Business

Forward-Looking Statements

Throughout this Annual Report on Form 10-K, Diamond Hill Investment Group, Inc. (the “Company”) may
make 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, relating to such matters as anticipated
operating results, prospects for achieving the critical threshold of assets under management, technological devel-
opments, economic trends (including interest rates and market volatility), expected transactions and acquisitions
and similar matters. The words “believe,” “expect,” “anticipate,” “estimate,” “should,” “hope,” “seek,” “plan,”
“intend” and similar expressions identify forward-looking statements that speak only as of the date thereof.
While the Company believes that the assumptions underlying its forward-looking statements are reasonable,
investors are cautioned that any of the assumptions could prove to be inaccurate and accordingly, the actual
results and experiences of the Company could differ materially from the anticipated results or other expectations
expressed by the Company in its forward-looking statements. Factors that could cause such actual results or
experiences to differ from results discussed in the forward-looking statements include, but are not limited to: the
adverse effect from a decline in the securities markets; a decline in the performance of the Company’s products;
changes in interest rates; a general or prolonged downturn in the economy; changes in government policy and
regulation, including monetary policy; changes in the Company’s ability to attract or retain key employees;
unforeseen costs and other effects related to legal proceedings or investigations of governmental and self-
regulatory organizations; and other risks identified from time-to-time in the Company’s other public documents
on file with the U. S. Securities and Exchange Commission (“SEC”), including those discussed below in
Item 1A.

General

The Company, an Ohio corporation organized in April 1990, derives its consolidated revenue and net
income from investment advisory and fund administration services provided by its subsidiaries Diamond Hill
Capital Management, Inc. (“DHCM”), Beacon Hill Fund Services, Inc. (“BHFS”), and BHIL Distributors, Inc.
(“BHIL”). BHFS and BHIL collectively operate as Beacon Hill. DHCM is a registered investment adviser under
the Investment Advisers Act of 1940 providing investment advisory services to individuals and institutional
investors through Diamond Hill Funds, separate accounts, and private investment funds (generally known as
“hedge funds”). Beacon Hill was incorporated during the first quarter of 2008, and provides certain fund admin-
istration services and underwriting services to mutual fund companies, including Diamond Hill Funds.

The Company’s primary objective is to fulfill its fiduciary duty to clients through a disciplined intrinsic

value approach to investing. Its secondary objective is to achieve an adequate long-term return for shareholders.

The Company sponsors, markets, and provides investment advisory and related services to various U.S. and
foreign clients including mutual funds, separate accounts, and private investment funds. The Company’s princi-
pal source of revenue is investment advisory fee income earned pursuant to investment advisory contracts with
its clients. This fee income is based primarily upon the net assets of the funds or separate accounts. The Compa-
ny’s investment advisory revenue depends largely on the total value and composition of assets under manage-
ment (“AUM”). Accordingly, fluctuations in financial markets and in the composition of AUM impact our
revenues and results of operations.

Investment Advisory Activities

DHCM executes its investment strategies through fundamental research and valuation disciplines. DHCM’s
analysts evaluate a company’s prospects based upon its current business and financial position, future growth
opportunities, and management capability and strategy. The intended result is an estimate of “intrinsic value.”
Intrinsic value is the present value of estimated future cash flows, discounted at a rate that reflects the required
return for the investment given the estimated level of risk. In other words, it is the estimated price a minority
shareholder should pay in order to achieve a satisfactory or “fair” return on the investment. The estimate of

1

intrinsic value is then compared to the current market price to evaluate whether, in the opinion of DHCM, an
attractive investment opportunity exists. A proprietary valuation model, which takes into account projected cash
flows for five years including a “terminal value” (the expected stock price in five years), assists in many of these
intrinsic value estimations. DHCM also applies an intrinsic value philosophy to the analysis of fixed income
securities.

DHCM believes that although securities markets are competitive, pricing inefficiencies often exist allowing
for attractive investment opportunities. Furthermore, DHCM believes that investing in securities whose market
prices are significantly below DHCM’s estimate of intrinsic value (or selling short securities whose market prices
are above DHCM’s estimate of intrinsic value) is a reliable method to achieve above average relative returns as
well as mitigate risk.

Current portfolio strategies managed by DHCM include Small Cap, Small-Mid Cap, Large Cap, Select,
Long-Short, Research Opportunities, Financial Long-Short, and Strategic Income. These strategies are available
on a separately managed basis and/or through a mutual fund. The Long-Short strategy is also available through
private investment funds that are offered to accredited and qualified investors in the United States and around the
world. The Company believes its desire to grow AUM should never come before its fiduciary obligation to cli-
ents. Once the Company determines that the size of any of its strategies hinders its ability to either differentiate
its product or add value for its clients, the Company will close those strategies to new clients, which may impact
the Company’s ability to grow AUM. The Small Cap strategy was closed to new investors as of December 31,
2005 and re-opened on September 1, 2007. The Long-Short strategy was closed to new investors as of June 30,
2008 and re-opened on December 31, 2008.

Marketing

DHCM primarily generates business through wholesaling to financial intermediaries, including independent
registered investment advisors, brokers, financial planners, investment consultants and third party marketing firms.
In addition, DHCM actively markets its separately managed accounts directly to institutional plan sponsors.

Assets Under Management

As of December 31, 2011, AUM totaled $8.7 billion, a 1% increase from December 31, 2010. The following
tables show AUM by product and investment objective for the dates indicated and a roll-forward of the change in
AUM for the years ended December 31, 2011, 2010, and 2009:

(in millions)

Assets Under Management by Product
As of December 31,

2011

2010

2009

Mutual funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sub-advised mutual funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Separate accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Private investment funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$4,237
972
3,294
168

Total AUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$8,671

$4,198
930
3,284
211

$8,623

$3,494
146
2,423
220

$6,283

(in millions)

Assets Under Management
by Investment Objective
As of December 31,

2011

2010

2009

Small Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Small-Mid Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Large Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Select (All Cap) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long-Short . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Strategic Income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 932
277
4,885
321
2,082
174

Total AUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$8,671

$ 948
196
4,631
422
2,251
175

$8,623

$ 625
146
2,654
400
2,300
158

$6,283

2

(in millions)

AUM at beginning of the year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net cash inflows (outflows)

mutual funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
sub-advised mutual funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
separate accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
private investment funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net market appreciation and income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Increase during the year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Change in Assets Under Management
For the Year Ended December 31,

2011

2010

2009

$8,623

$6,283

$4,510

77
21
(74)
(21)

3
45

48

467
714
532
(15)

1,698
642

2,340

(109)
6
734
(52)

579
1,194

1,773

AUM at end of the year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$8,671

$8,623

$6,283

Diamond Hill Funds

The Diamond Hill Funds (the “Funds”) are used by over 12,600 financial representatives at over 1,300 finan-
cial intermediary firms. Below is a summary of the assets by distribution channel as of December 31, 2011, 2010,
and 2009:

(in millions)

Diamond Hill Funds
Assets by Distribution Channel
As of December 31,

2011

2010

2009

Registered investment advisors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Independent broker/dealers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wirehouse broker/dealers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Banks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defined contribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,049
665
674
927
737
145

$1,080
815
775
797
493
192

$1,272
757
824
43
211
348

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$4,197

$4,152

$3,455

Sub-advised mutual funds

Since 2009, DHCM has increased its sub-advised mutual funds relationships by $826 million. Sub-advised
mutual funds are registered investment companies, where DHCM manages an allocated portion of the fund and
has limited distribution responsibilities.

Institutional Accounts

DHCM develops institutional relationships for separately managed accounts through consultant relation-

ships and directly with plan sponsors.

Growth Prospects

DHCM’s investment strategies have produced long-term investment returns that the Company views as
strong and believes compare favorably to competitors. Investment returns have been a key driver in the success
the Company has achieved in growing AUM.

As a result, the Company has continued to invest in marketing throughout 2011 in an effort to expand dis-

tribution. Such expenditures included:

• adding business development and support staff;

• attending and sponsoring key industry conferences; and

• adding systems infrastructure to support client service and portfolio administration.

3

The cost of these efforts was significant, but the Company believes the cost will be proportional to the
increase in revenue during future years. There can be no assurance that the Company’s marketing efforts will
prove successful; however, given the strong investment results of the Funds and institutional composites, the
Company believes the additional resources devoted to marketing are warranted.

Also recognizing that the Company’s primary responsibility is to clients, the Company will continue to
invest in its investment team and close investment strategies to new investors when appropriate. Over the last
three years, the Company substantially increased its equity investment team by growing the team from 25 at the
end of 2008 to 30 at the end of 2011. Most of the additional investment team staff had been on the research team,
which now totals 19.

The Company believes that one of the most important characteristics exhibited by the best investment firms
is excellent investment returns for their clients over a long period of time. The Company is pleased that, during
its history as an investment advisory firm, it has delivered what it believes are strong investment returns for its
clients. However, the Company is mindful that if it fails to deliver acceptable investment returns in the future, its
financial condition, results of operations and business growth will likely be negatively impacted. There are cer-
tain additional business risks that may prevent the Company from achieving the above growth prospects. These
risks are detailed in Item 1A.

Fund Administration Activities

DHCM and Beacon Hill provide fund administration services to Diamond Hill Funds and other third party
mutual fund companies. Fund administration services are broadly defined as portfolio and regulatory compliance,
treasury and financial oversight, underwriting, and general oversight of other back-office services providers such
as the custodian, fund accountant, and transfer agent. During the past several years, there has been continuing
consolidation in the mutual fund servicing industry, whereby large financial services firms have purchased
independent mutual fund service providers. Some of these larger financial services firms have made the decision
not to offer statutory underwriting services to mutual funds, due to regulatory and other business conflicts. This
consolidation, along with a growing desire for transparent and independent oversight of mutual fund financial
reporting and compliance program activities, has provided opportunities in the marketplace for the Company to
grow its fund administration services. During 2008, Beacon Hill completed the build out of its infrastructure and
began operations. During 2009, 2010, and 2011, Beacon Hill continued to focus on growing its client base.

Competition

Competition in the area of investment management services and mutual funds is intense, and the Company’s
competitors include investment management firms, broker-dealers, banks and insurance companies, some of
whom offer various investment alternatives. Many competitors are better known than the Company, offer a
broader range of investment products and have more offices, employees and business development representa-
tives. The Company competes primarily on the basis of investment philosophy, performance and client service.

Corporate Investment Portfolio

The Company expects to hold investment positions in Diamond Hill Funds and its private investment funds.

Regulation

DHCM is registered with the SEC under the Investment Advisers Act of 1940 (the “Advisers Act”) and
operates in a highly regulated environment. The Advisers Act imposes numerous obligations on registered
investment advisers, including fiduciary duties, recordkeeping requirements, operational requirements and dis-
closure obligations. All Diamond Hill Funds are registered with the SEC under the Investment Company Act of
1940 and are required to make notice filings with all states where they are offered for sale. Virtually all aspects
of the Company’s investment management business are subject to various federal and state laws and regulations.
BHIL is registered with the SEC as a broker/dealer and is a member of the Financial Industry Regulatory Author-
ity, Inc. (“FINRA”).

4

Generally, these laws and regulations are intended to benefit shareholders of the funds and separately man-
aged account clients and grant supervisory agencies and bodies broad administrative powers, including the power
to limit or restrict the Company from carrying on its investment management and mutual fund underwriting
business in the event that it fails to comply with such laws and regulations. In such event, possible sanctions
which may be imposed include the suspension of individual employees, limitations on engaging in various activ-
ities for specified periods of time, the revocation of broker-dealer or investment adviser registration, and other
censures or fines. The Company continuously monitors legislative, tax, regulatory, accounting and compliance
developments that could impact its business.

Contractual Relationships with the Diamond Hill Funds

The Company is very dependent on its contractual relationships with the Funds. In the event the Company’s
advisory or administration agreements with the Funds are terminated, not renewed, or amended to reduce fees,
the Company would be materially and adversely affected. Generally, these agreements are terminable by either
party upon 60 days written notice without penalty. The agreements are subject to annual approval by either (i) the
board of trustees of the Funds or (ii) a vote of the majority of the outstanding voting securities of each Fund. The
agreements automatically terminate in the event of their assignment by either the Company or the Fund. The
Company generated approximately 61%, 66% and 69% of its 2011, 2010 and 2009 revenues, respectively, from
its advisory and administrative contracts with the Funds, including 26%, 11%, and 10% from the advisory con-
tracts with the Diamond Hill Long-Short Fund, Large Cap Fund, and Small Cap Fund, respectively, during 2011.
The loss of the Long-Short Fund, Large Cap Fund, or Small Cap Fund contracts would have a material adverse
effect on the Company. The Company considers its relationship with the Funds and their board of trustees to be
good, and it has no reason to believe that these advisory or administration contracts will not be renewed in the
future; however, there is no assurance that the Funds will choose to continue their relationships with the Com-
pany.

Employees

As of December 31, 2011, the Company and its subsidiaries employed 73 full-time equivalent employees.
As of December 31, 2010, the comparable number was 74. The Company believes that its relationship with its
employees is good and does not anticipate any material change in the number of employees.

SEC Filings

The Company maintains an Internet website at www.diamond-hill.com. Annual reports on Form 10-K, quar-
terly reports on Form 10-Q, XBRL instance documents, current reports on Form 8-K and amendments to those
reports, filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act, are made available free of
charge, on or through the Company’s website, as soon as reasonably practicable after such material is electroni-
cally filed with, or furnished to, the SEC. The contents of the Company’s website are not incorporated into, or
otherwise made a part of, this Annual Report on Form 10-K.

5

ITEM 1A. Risk Factors

The Company’s future results of operations, financial condition, liquidity, and the market price of the
Company’s common shares are subject to various risks, including those mentioned below and those that are dis-
cussed from time-to-time in the Company’s other periodic filings with the SEC. Investors should carefully
consider these risks, along with the other information contained in this report, before making an investment deci-
sion regarding the Company’s common shares. There may be additional risks of which the Company is currently
unaware, or which it currently considers immaterial. The occurrence of any of these risks could have a material
adverse effect on the Company’s financial condition, results of operations, liquidity, and value of its common
shares. Also see “Forward Looking Statements” within Item 1 of Part I of this Form 10-K.

Poor investment results of the Company’s products could affect its ability to attract new clients or reduce the
amount of assets under management, potentially negatively impacting revenue and net income.

If the Company fails to deliver acceptable investment results for its clients, both in the short and long term,

it will likely experience diminished investor interest and potentially a diminished level of AUM.

The Company’s success depends on its key personnel, and its financial performance could be negatively affected
by the loss of their services.

The Company’s success depends on highly skilled personnel, including portfolio managers, research ana-
lysts, and management, many of whom have specialized expertise and extensive experience in the investment
management industry. Financial services professionals are in high demand, and the Company faces significant
competition for qualified employees. With the exception of the Chief Executive Officer, key employees do not
have employment contracts and generally can terminate their employment at any time. The Company cannot
assure that it will be able to retain or replace key personnel. In order to retain or replace its key personnel, the
Company may be required to increase compensation, which would decrease net income. The loss of key person-
nel could damage the Company’s reputation and make it more difficult to retain and attract new employees and
clients. A loss of client assets resulting from the departure of key personnel would decrease the Company’s rev-
enues and net income, possibly materially.

The Company’s AUM, which impacts revenue, is subject to significant fluctuations.

Substantially all revenue for the Company is calculated as a percentage of AUM or is based on the general
performance of the equity securities market. A decline in securities prices (such as that experienced during the
last half of 2008 and first quarter of 2009) or in the sale of investment products, or an increase in fund
redemptions, generally would reduce fee income. Financial market declines would generally negatively impact
the level of the Company’s AUM and consequently its revenue and net income. A recession or other economic or
political events, both in the United States as well as globally, could also adversely impact the Company’s rev-
enue, if such events led to a decreased demand for products, a higher redemption rate, or a decline in securities
prices.

The investment results and/or the growth in the Company’s AUM may be constrained if appropriate investment
opportunities are not available or if the Company closes certain of its portfolios.

The Company’s ability to deliver strong investment results depends in large part on its ability to identify
appropriate investment opportunities in which to invest client assets. If the Company is unable to identify suffi-
cient investment opportunities for existing and new client assets on a timely basis, its investment results could be
adversely affected. The risk that appropriate investment opportunities may be unavailable is influenced by a
number of factors, including general market conditions, and is likely to increase if the Company’s AUM
increases rapidly. In addition, if the Company determines that sufficient investment opportunities are not avail-
able for a portfolio strategy, or the Company believes that in order to continue to produce attractive returns from
a portfolio, the Company will consider closing the portfolio to new investors. If the Company misjudges the point
at which it would be optimal to close a portfolio, the investment results of the portfolio could be negatively
impacted.

6

The Company is subject to substantial competition in all aspects of its business.

The Company’s investment products compete against a number of investment products and services from:

• asset management firms;

• mutual fund companies;

• commercial banks and thrift institutions;

• insurance companies;

• hedge funds; and

• brokerage and investment banking firms.

Many of these financial institutions have substantially greater resources than the Company and may offer a
broader range of products or operate in more markets. Some of these institutions operate in a different regulatory
environment, which may give them certain competitive advantages in the investment products and portfolio
structures that they offer. The Company competes with other providers of investment advisory services primarily
based upon its investment philosophy, performance and client service. Some institutions have proprietary prod-
ucts and distribution channels that make it more difficult for the Company to compete with them. If current or
potential customers decide to use one of the Company’s competitors, the Company could face a significant
decline in market share, AUM, revenues, and net income. If the Company is required to lower its fees in order to
remain competitive, its net income could be significantly reduced because some of its expenses are fixed, espe-
cially over shorter periods of time, and other expenses may not decrease in proportion to the decrease in rev-
enues.

The Company depends on third-party distribution sources to market its portfolios and access its client base.

The Company’s ability to attract additional assets to manage is dependent on the Company’s access to third-
party intermediaries. The Company gains access to mutual fund investors and some retail and institutional clients
through third parties, including mutual fund platforms and financial intermediaries. The Company compensates
intermediaries for access to investors and for various services provided. These distribution sources and client
bases may not continue to be accessible to the Company for reasonable terms, or at all. Limiting or the total
absence of such access could have an adverse effect on the Company’s results of operations. The recent
economic downturn and consolidation in the broker-dealer industry may lead to reduced distribution access and
increases in fees the Company is required to pay to intermediaries. If such increased fees should be required,
refusal to pay them could restrict the Company’s access to those client bases while paying them could adversely
affect the Company’s profitability.

A significant portion of the Company’s revenues are based on contracts with the Diamond Hill Funds that are
subject to termination without cause and on short notice.

The Company is very dependent on its contractual relationships with the Funds. In the event the Company’s
advisory or administration agreements with the Funds are terminated, not renewed, or amended to reduce fees,
the Company would be materially and adversely affected. Generally, these agreements are terminable by either
party upon 60 days written notice without penalty. The agreements are subject to annual approval by either (i) the
board of trustees of the Funds or (ii) a vote of the majority of the outstanding voting securities of each Fund. The
agreements automatically terminate in the event of their assignment by either the Company or the Fund. The
Company generated approximately 61%, 66% and 69% of its 2011, 2010 and 2009 revenues, respectively, from
its advisory and administrative contracts with the Funds, including 26%, 11%, and 10% from the advisory con-
tracts with the Diamond Hill Long-Short Fund, Large Cap Fund, and Small Cap Fund, respectively, during 2011.
The loss of the Long-Short Fund, Large Cap Fund, or Small Cap Fund contracts would have a material adverse
effect on the Company. The Company considers its relationship with the Funds and their board of trustees to be
good, and it has no reason to believe that these advisory or administration contracts will not be renewed in the
future; however, there is no assurance that the Funds will choose to continue their relationships with the Com-
pany.

7

Operational risks may disrupt the Company’s business, result in losses or limit the Company’s growth.

The Company is dependent on the capacity and reliability of the communications, information and technol-
ogy systems supporting its operations, whether developed, owned and operated by the Company or by third par-
ties. Operational risks such as trading or operational errors or interruption of our financial, accounting, trading,
compliance and other data processing systems could result in a disruption of the Company’s business, liability to
clients, regulatory intervention or reputational damage, and thus adversely affect the Company’s business.

The Company’s business is subject to substantial governmental regulation.

The Company’s business is subject to a variety of federal securities laws including the Investment Advisers
Act of 1940, the Investment Company Act of 1940, the Securities Exchange Act of 1934, the Sarbanes-Oxley Act
of 2002, and the U.S. Patriot Act of 2001. In addition, the Company is subject to significant regulation and over-
sight by the SEC and FINRA. Changes in legal, regulatory, accounting, tax and compliance requirements could
have a significant effect on the Company’s operations and results, including but not limited to increased expenses
and reduced investor interest in certain funds and other investment products offered by the Company. The Com-
pany continually monitors legislative, tax, regulatory, accounting, and compliance developments that could
impact its business.

The Company will continue to seek to understand, evaluate and when possible, manage and control these

and other business risks.

ITEM 1B. Unresolved Staff Comments

None.

ITEM 2. Properties

The Company leases approximately 25,500 square feet of office space at two locations in Columbus, Ohio.

The Company does not own any real estate or interests in real estate.

ITEM 3. Legal Proceedings

From time to time, the Company is party to ordinary routine litigation that is incidental to its business. The
Company believes these claims will not have a material adverse effect on its financial condition, liquidity or
results of operations.

ITEM 4. Mine Safety Disclosures

Done.

8

PART II

ITEM 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of

Equity Securities

The following performance graph compares the total shareholder return of an investment in the Company’s
common shares to that of the Russell Microcap® Index, and to a peer group index of publicly traded asset manage-
ment firms for the five-year period ending on December 31, 2011. The graph assumes that the value of the invest-
ment in the Company’s common shares and each index was $100 on December 31, 2006. Total return includes
reinvestment of all dividends. The Russell Microcap® Index makes up less than 3% of the U.S. equity market and is
a market-value-weighted index of the smallest 1,000 securities in the small-cap Russell 2000® Index plus the next
1,000 smallest securities. Peer Group returns are weighted by the market capitalization of each firm at the beginning
of the measurement period. The historical information set forth below is not necessarily indicative of future
performance. Diamond Hill does not make or endorse any predictions as to future stock performance.

$160

$120

$80

$40

$0

Dec-06

Dec-07

Dec-08

Dec-09

Dec-10

Dec-11

Peer Group

Diamond Hill Investment Group, Inc.

Russell Microcap Index

12/31/2006

12/31/2007

12/31/2008

12/31/2009

12/31/2010

12/31/2011

Diamond Hill Investment Group, Inc. . . . . .
Russell Microcap® Index . . . . . . . . . . . . . . .
Peer Group* . . . . . . . . . . . . . . . . . . . . . . . . .

100
100
100

87
92
107

89
55
39

102
71
60

136
91
69

149
83
53

* The following companies are included in the Peer Group: Westwood Holdings Group, Inc.; Epoch Holding
Corp.; Eaton Vance Corp.; Waddell & Reed Financial, Inc.; Federated Investors, Inc.; GAMCO Investors,
Inc.; Affiliated Managers Group, Inc.; Legg Mason, Inc.; U.S. Global Investors, Inc.; Alliance Bernstein
Holding L.P.; Janus Capital Group, Inc.; SEI Investments, Co.; Cohen & Steers, Inc.; and Calamos Asset
Management, Inc.

The Company’s common shares trade on the NASDAQ Global Select Market under the symbol DHIL. The

following table sets forth the high and low sales prices during each quarter of 2011 and 2010:

High
Price

2011

Low
Price

Dividend
Per Share

High
Price

2010

Low
Price

Dividend
Per Share

Quarter ended:

March 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
June 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
September 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
December 31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$80.00
$82.90
$84.96
$81.52

$67.16
$77.00
$65.10
$60.32

$ — $74.84
$ — $82.49
$ — $74.95
$86.15
$5.00

$54.58
$55.88
$50.52
$68.86

$ —
$ —
$ —
$13.00

9

Due to the relatively low volume of traded shares, quoted prices cannot be considered indicative of any
viable market for such shares. During the years ended December 31, 2011 and 2010, approximately 2,429,600
and 2,025,600, respectively, of the Company’s common shares were traded. The dividends indicated above were
special dividends. The Company has not paid regular quarterly dividends in the past, and has no present intention
of paying regular dividends in the future. The approximate number of registered holders of record of the Compa-
ny’s common shares at December 31, 2011 was 238.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

The Company purchased 15,462 of its common shares during the third quarter of 2011. There were no other
purchases of the Company’s common shares during the year ended December 31, 2011. The following table sets
forth information regarding the Company’s repurchase program of its common shares during the fourth quarter
of fiscal year 2011:

Period

October 1, 2011 through October 31,

2011 . . . . . . . . . . . . . . . . . . . . . . . .

November 1, 2011 through

November 30, 2011 . . . . . . . . . . . .

December 1, 2011 through

December 31, 2011 . . . . . . . . . . . . .

Total Number
of Shares Purchased

Average Price
Paid Per Share

Cumulative Number
of Shares Purchased
as part of a Publicly
Announced Plans
or Programs

Maximum Number
of Shares That May
Yet Be Purchased
Under the Plans or
Programs(1)

—

—

—

—

—

—

31,567

31,567

31,567

318,433

318,433

318,433

(1) —The Company’s current share repurchase program was announced on August 9, 2007. The board of direc-
tors authorized management to repurchase up to 350,000 shares of its common stock in the open market and
in private transactions in accordance with applicable securities laws. The Company’s stock repurchase pro-
gram is not subject to an expiration date.

ITEM 6. Selected Financial Data

The following selected financial data should be read in conjunction with the Company’s Consolidated Finan-
cial Statements and related notes and Management’s Discussion and Analysis of Financial Condition and Results
of Operations contained in this Annual Report on Form 10-K.

For the Years Ended December 31,

2011

2010

2009

2008

2007

Income Statement Data (in thousands):

$

Total revenues . . . . . . . . . . . . . . . . . . . . . .
Compensation and related costs . . . . . .
Other expenses . . . . . . . . . . . . . . . . . . .
Total expenses . . . . . . . . . . . . . . . . . . . . . .
Net operating income . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . .

$

63,838
32,875
7,902
40,777
23,061
14,353

$

56,704
30,991
7,240
38,231
18,473
12,402

$

43,562
24,114
7,336
31,450
12,112
11,374

47,019
26,120
7,170
33,290
13,729
3,276

$

41,308
20,007
7,223
27,230
14,078
9,932

Operating profit margin . . . . . . . . . . . . . . . . .

36.1%

32.6%

27.8%

29.2%

34.1%

Per Share Information:

Basic earnings . . . . . . . . . . . . . . . . . . . . . .
Diluted earnings . . . . . . . . . . . . . . . . . . . .
Cash dividend declared . . . . . . . . . . . . . . .

$

$

4.86
4.86
5.00

$

4.48
4.48
13.00

$

4.40
4.40
10.00

$

1.36
1.36
10.00

4.61
4.39
—

Weighted Average Shares Outstanding

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

2,951,751
2,951,751

2,766,741
2,767,895

2,582,998
2,587,751

2,400,142
2,408,476

2,155,829
2,264,234

10

2011

2010

2009

2008

2007

At December 31,

Balance Sheet Data (in thousands):

Total assets . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
Long-term debt
Shareholders equity . . . . . . . . . . . . . . . . . .
Assets Under Management (in millions) . . . .
Net Client Flows (in millions) . . . . . . . . . . . .

$37,720
—
18,050
$ 8,671
3

$28,566
—
7,498
$ 8,623
1,698

$40,505
—
22,981
$ 6,283
579

$44,540
—
30,246
$ 4,510
1,977

$53,284
—
39,308
$ 4,403
602

ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

In this section, the Company discusses and analyzes the consolidated results of operations for the past three
fiscal years and other factors that may affect future financial performance. This discussion should be read in
conjunction with the Company’s Consolidated Financial Statements, Notes to Consolidated Financial Statements,
and Selected Financial Data contained in this Form 10-K.

The Company’s revenue is derived primarily from investment advisory and administration fees. Investment
advisory and administration fees paid to the Company are generally based on the value of the investment portfo-
lios managed by the Company and fluctuate with changes in the total value of the AUM. Such fees are recog-
nized in the period that the Company manages these assets. The Company’s primary expense is employee
compensation and benefits.

Revenues are highly dependent on both the value and composition of AUM. The following is a summary of
the Company’s AUM by product and a roll-forward of the change in AUM for the years ended December 31,
2011, 2010, and 2009:

(in millions)

Assets Under Management by Product
As of December 31,

2011

2010

2009

Mutual funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sub-advised funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Separate accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Private investment funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$4,237
972
3,294
168

Total AUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$8,671

$4,198
930
3,284
211

$8,623

$3,494
146
2,423
220

$6,283

(in millions)

AUM at beginning of the year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net cash inflows (outflows)

mutual funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
sub-advised mutual funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
separate accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
private investment funds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Net market appreciation and income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Increase during the year

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For the Year Ended December 31,

2011

2010

2009

$8,623

$6,283

$4,510

77
21
(74)
(21)

3
45

48

467
714
532
(15)

1,698
642

2,340

(109)
6
734
(52)

579
1,194

1,773

AUM at end of the year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$8,671

$8,623

$6,283

11

Consolidated Results of Operations

The following is a discussion of the consolidated results of operations of the Company and a detailed dis-

cussion of the Company’s revenues and expenses.

(in thousands, except per share data)

2011

2010

% Change

2010

2009

% Change

Net operating income . . . . . . . . . . . . . . . . . . . . .
Net operating income after tax(a)
. . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net operating income after tax per share(a)

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

Net income per share

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating profit margin . . . . . . . . . . . . . . . . . . .

$23,061
$14,394
$14,353

$18,473
$11,643
$12,402

25% $18,473
24% $11,643
16% $12,402

$12,112
$ 7,867
$11,374

$
$

$
$

$
$

$
$

4.88
4.88

4.86
4.86
36.1%

4.21
4.21

16% $
16% $

4.21
4.21

4.48
4.48
32.6% NM

8% $
8% $

4.48
4.48
32.6%

$
$

$
$

3.05
3.04

4.40
4.40
27.8% NM

2%
2%

53%
48%
9%

38%
38%

(a) — Net operating income after tax, which is a non-GAAP performance measure, is reconciled to net operating

income in “Use of Supplemental Data as Non-GAAP Performance Measure” on page 19 of this report.

Year Ended December 31, 2011 compared with Year Ended December 31, 2010

The Company posted net income of $14.3 million ($4.86 per diluted share) for the year ended December 31,
2011, compared with net income of $12.4 million ($4.48 per diluted share) for the year ended December 31,
2010. While net income increased $1.9 million, revenue for the period increased $7.1 million offset by a
$2.6 million increase in operating expenses, a $1.2 million decrease in net investment return, and a $1.3 million
increase in the income tax provision from 2010 to 2011. Operating profit margin increased to 36.1% for 2011
from 32.6% for 2010. The Company expects that its operating margin will fluctuate from year to year based on
various factors including revenues; investment results; employee performance; staffing levels; development of
investment strategies, products, or channels; and industry comparisons.

Year Ended December 31, 2010 compared with Year Ended December 31, 2009

The Company posted net income of $12.4 million ($4.48 per diluted share) for the year ended December 31,
2010, compared with net income of $11.4 million ($4.40 per diluted share) for the year ended December 31,
2009. Net income increased $1.0 million due to a $6.4 million increase in operating income driven by a 37%
increase in AUM from 2009 to 2010, offset by a $4.2 million decrease in the investment return of the Company’s
corporate investment portfolio from 2009 to 2010. Operating profit margin increased to 32.6% for 2010 from
27.8% for 2009. The Company expects that its operating margin will fluctuate from year to year based on various
factors including revenues; investment results; employee performance; staffing levels; development of invest-
ment strategies, products, or channels; and industry comparisons.

Revenue

(in thousands)

2011

2010

% Change

2010

2009

% Change

Investment advisory . . . . . . . . . . . . . . . . . . . . . .
Mutual fund administration, net . . . . . . . . . . . . .

$56,016
7,822

$49,249
7,455

14% $49,249
7,455
5%

$37,472
6,090

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

63,838

56,704

13%

56,704

43,562

31%
22%

30%

12

Revenue for the Year Ended December 31, 2011 compared with Year Ended December 31, 2010

As a percent of total 2011 revenues, investment advisory fees accounted for 88% and mutual fund admin-

istration fees made up the remaining 12%. This compared to 87% and 13%, respectively, for 2010.

Investment Advisory Fees.

Investment advisory fees increased by $6.8 million, or 14%. Investment advi-
sory fees are calculated as a percentage of average net AUM at various levels depending on the investment prod-
uct. The Company’s average advisory fee rate for 2011 was 0.63% compared to 0.70% in 2010. The decrease in
the average advisory fee rate is due to a continued change in the overall composition of AUM first seen during
2008, where long-short strategies, which pay a higher advisory fee rate, made up 24% of total AUM as of fourth
quarter 2011 compared to 35% of total AUM as of first quarter 2010 while long only strategies, which pay a
lower advisory fee rate, made up 60% of total AUM as of fourth quarter 2011 compared to 50% of total AUM as
of first quarter 2010. Further contributing to the decrease in the average advisory rate is the large cap fee reduc-
tion where the Company voluntarily lowered the investment advisory fee it charges on the Diamond Hill Large
Cap Fund and certain large cap separate accounts by 0.05% effective October 1, 2011. The large cap strategy fees
were reduced to better align the Company’s investment advisory fees with its investment management goals.
Despite the 0.07% decrease in the average advisory fee rate during 2011 compared to 2010, the fee rate was
being charged on a greater asset base as the average AUM increased 26% during the year compared to 2010
resulting in an increase in the overall fees earned during 2011. The Company anticipates the average advisory fee
rate to continue to decrease throughout 2012 based upon the full year impact of the large cap strategy fee reduc-
tion.

Mutual Fund Administration Fees. Mutual fund administration fees increased $367 thousand, or 5%,
during 2011. Mutual fund administration fees include administration fees received from Diamond Hill Funds,
which are calculated as a percentage of average mutual fund AUM, and all Beacon Hill fee revenue. The increase
in the mutual fund administration fee is due to a 11% increase in average mutual fund AUM from $3.8 billion for
the year ended December 31, 2010 to $4.2 billion for the year ended December 31, 2011 offset by a decrease in
the overall blended net administration fee rate from 0.17% for the year ended December 31, 2010 to 0.15% for
the year ended December 31, 2011.

Revenue for the Year Ended December 31, 2010 compared with Year Ended December 31, 2009

As a percent of total 2010 revenues, investment advisory fees accounted for 87% and mutual fund admin-

istration fees made up the remaining 13%. This compared to 86% and 14%, respectively, for 2009.

Investment Advisory Fees.

Investment advisory fees increased by $11.8 million, or 31%, due to a 43%
increase in average AUM from 2009 to 2010. Investment advisory fees are calculated as a percentage of average
net AUM at various levels depending on the investment product. The Company’s average advisory fee rate for
2010 was 0.70% compared to 0.76% in 2009. The decrease in the average advisory fee rate is due to a continued
change in the overall composition of AUM first seen during 2008, where long-short strategies, which pay a
higher advisory fee rate, made up 26% of total AUM in 2010 compared to 36% of total AUM in 2009 while long
only strategies, which pay a lower advisory fee rate, made up 54% of total AUM in 2010 compared to 42% of
total AUM in 2009. Despite the 0.06% decrease in the average advisory fee rate during 2010 compared to 2009,
the fee rate was being charged on a greater asset base as the average AUM increased 43% during the year com-
pared to 2009 resulting in an increase in the overall fees earned during 2010.

Mutual Fund Administration Fees. Mutual fund administration fees increased $1.4 million, or 22%, during
2010. Fund administration revenue on the Company’s sponsored Diamond Hill Funds increased $1.1 million
from 2009 to 2010, due in part to a 28% increase in average mutual fund AUM, which was partially offset by a
reduction in the average administration net fee rate from 0.18% in 2009 to 0.17% in 2010. Further contributing to
the increase in revenue was a $199 thousand increase in Beacon Hill’s revenue from 2009 to 2010.

13

Expenses

(in thousands)

2011

2010

% Change

2010

2009

% Change

Compensation and related costs . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . . . . . .
Third party distribution . . . . . . . . . . . . . . . . . . .
Mutual fund administration . . . . . . . . . . . . . . . .

$32,875
4,425
1,145
828
1,504

$30,991
3,409
854
1,036
1,941

6% $30,991
3,409
30%
854
34%
1,036
-20%
1,941
-23%

$24,114
3,133
751
1,112
2,340

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40,777

38,231

7%

38,231

31,450

29%
9%
14%
-7%
-17%

22%

Expenses for the Year Ended December 31, 2011 compared with Year Ended December 31, 2010

Compensation and Related Costs. Employee compensation and benefits increased by $1.9 million, or
6%, primarily due to an increase of $1.7 million in incentive compensation during 2011 consistent with fluctua-
tions in AUM during the year and the associated increase in operating income. In addition, salaries and related
benefits increased $180 thousand due to increases in the costs of benefits along with fluctuations in staffing lev-
els during the year.

General and Administrative. General and administrative expenses increased by $1.0 million, or 30%,
from 2010 to 2011. This increase is primarily due to additional research expenses to support the Company’s
investment team, the implementation of new systems and other information technology expenses, increased
product development expenses, and expansion of the Company’s office space.

Sales and Marketing. Sales and marketing expenses increased by $291 thousand, or 34%, from 2010 to
2011. This increase was primarily due to a continued increased presence at industry conferences and an overall
increase in travel and other expenses related to business development and retention efforts during the year.

Third Party Distribution. Third party distribution expense represents payments made to intermediaries
related to sales of the Company’s investment products. This expense directly correlated with investments in the
Company’s private investment funds. The period over period increase or decrease directly corresponds to the
increase or decrease in investment advisory fees earned by the Company related to those products.

Mutual Fund Administration. Mutual fund administration expenses decreased by $437 thousand, or
23%, from 2010 to 2011. The majority of mutual fund administration fees are variable based upon the amount of
mutual fund AUM. Despite an overall increase in average mutual fund AUM by 11% from 2010 to 2011, the
decrease in mutual fund administration expense was primarily due to third party service provider fee reduction
effective during fourth quarter 2010 and a further fee reduction during fourth quarter 2011.

Expenses for the Year Ended December 31, 2010 compared with Year Ended December 31, 2009

Compensation and Related Costs. Employee compensation and benefits increased by $6.9 million, or
29%, primarily due to an increase of $3.8 million in incentive compensation during 2010 consistent with an
increase in AUM and the associated increase in operating income. Further contributors to the overall increase in
compensation expense were restricted stock expense, which increased by $718 thousand due to an overall
increase in the total amount of long-term equity awards outstanding in 2010 compared to 2009, and base salaries
and related benefits, which increased $1.3 million due to a 15% increase in employee headcount from 2009 to
2010.

General and Administrative. General and administrative expenses increased by $276 thousand, or 9%,
from 2009 to 2010. This increase was primarily due to additional research expenses to support the Company’s
investment team, the full year impact of the expansion of the Company’s office space and the implementation of
a new trading system, which were partially offset by a decrease in legal costs and a phase-out of the Ohio fran-
chise tax expense.

14

Sales and Marketing. Sales and marketing expenses increased by $103 thousand, or 14%, from 2009 to
2010. This increase was primarily due to an increased presence at industry conferences and an increase in travel
and other expenses related to business development and retention efforts during the year.

Third Party Distribution. Third party distribution expense represents payments made to third party
intermediaries directly related to sales made by those parties of the Company’s investment products. This
expense directly correlates with level of sales and AUM in these investment products. The period over period
increase or decrease directly corresponds to the increase or decrease in investment advisory fees earned by the
Company.

Mutual Fund Administration. Mutual fund administration expenses decreased by $399 thousand, or
17%, from 2009 to 2010. The majority of mutual fund administration fees are variable based upon the amount of
mutual fund AUM. Despite an overall increase in average mutual fund AUM by 28% from 2009 to 2010, the
decrease in mutual fund administration expense was primarily due to a third party service provider fee reduction
related to bringing certain administration activities in-house.

Beacon Hill Fund Services

Beacon Hill has been staffed with 11 full-time equivalent employees as of December 31, 2011 and 13 full-
time equivalent employees as of December 31, 2010, and provides compliance, treasurer, and other fund admin-
istration services to mutual fund clients and their investment advisers. In addition, through its registered broker/
dealer, Beacon Hill also serves as the underwriter for a number of mutual funds. The following is a summary of
Beacon Hill’s results for the year ended December 31, 2011 compared to 2010 and 2009, excluding 12b-1 / serv-
ice fees and commission revenue and expenses, which net to zero:

(in thousands)

For the Year Ended
December 31,

2011

2010

2009

Revenue1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,789
2,259

$1,588
2,128

$1,024
1,661

Net loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ (470) $ (540) $ (637)

1 Beacon Hill’s 2011, 2010, and 2009 revenue includes $517 thousand, $512 thousand, and $146 thousand,
respectively, of inter-company revenue earned from services provided to DHCM. These amounts have been
eliminated from the Consolidated Statements of Income.

Liquidity and Capital Resources

The Company’s entire investment portfolio is in readily marketable securities, which provide for cash liquid-
ity, if needed. Investments in mutual funds are valued at their quoted current net asset value. Investments in pri-
vate investment funds are valued independently based on readily available market quotations. Inflation is
expected to have no material impact on the Company’s performance.

As of December 31, 2011, the Company had working capital of approximately $14.0 million compared to
$4.9 million at December 31, 2010. Working capital includes cash, securities owned and accounts receivable, net
of all liabilities. On December 1, 2011, the Company’s board of directors declared a $5 per share dividend pay-
able on December 19, 2011 to shareholders of record on December 12, 2011. The payment of the special cash
dividend reduced the Company’s working capital balance. The Company has no debt, and believes its available
working capital is sufficient to cover current expenses. The Company does not expect any material capital
expenditures during 2012.

The Company has paid out special dividends totaling $38 per share from 2008 through 2011. These special
dividends in total reduced shareholders’ equity by $102 million over the past four years. The 2011 special divi-
dend reduced shareholders’ equity by $14.9 million. It was a qualified dividend for tax purposes and was
recorded as a reduction of retained earnings, which contributed to the accumulated deficit of $20.4 million as of

15

December 31, 2011. The Company’s accumulated deficit is not expected to impact its future ability to operate
given its continuing profitability and strong cash and financial position. The 2010 special dividend reduced
shareholders’ equity by $36.3 million and was recorded through retained earnings generating an accumulated
deficit of $19.8 million as of December 31, 2010. The 2009 special dividend reduced shareholders’ equity by
$26.2 million and was recorded through retained earnings. A portion of the 2010 and 2009 dividend was a return
of capital for tax purposes and the Company elected to record each dividend as a reduction of retained earnings.
The 2008 special dividend reduced shareholders’ equity by $24.4 million and was recorded through common
stock as 100% of this dividend represented a return of capital to shareholders.

Operating activities during 2011 provided cash flows of $21.8 million,

income of
$14.3 million, compared to cash flows of $25.1 million in 2010, including net income of $12.4 million. Net cash
provided by investing activities totaled $2.9 million, compared to net cash provided in investing activities of
$4.6 million in 2010. Capital spending for property and equipment increased to $253 thousand in 2011, an
increase of $191 thousand from 2010, and proceeds from the sales of investments decreased to $4.1 million in
2011, a decrease of $1.9 million from 2010. Net cash used in financing activities was $15.2 million in 2011,
compared to net cash used by financing activities of $35.5 million in 2010. Cash used in financing activities in
2011 consists of $14.9 million special dividend payment and $1.0 million in common stock repurchases, offset
by proceeds from common stock issuances compared to a $36.3 million special dividend payment in 2010 being
offset by proceeds from common stock issuances. There were no common stock repurchases during 2010.

including net

Operating activities during 2010 provided cash flows of $25.1 million, up $8.1 million from 2009, including
an increase in net income of $1.0 million, an increase in the change in non-cash stock based compensation
expense of $718 thousand, an increase in the change in accounts receivable of $6.3 million, an increase in the
change in investment gain/loss of $4.2 million, and an increase in the change in accrued liabilities of
$1.1 million, offset by a decrease in the change in deferred taxes of $1.8 million, and a decrease in the change in
other assets and liabilities of $3.4 million. Net cash provided in investing activities totaled $4.6 million, com-
pared to net cash provided in investing activities of $4.2 million in 2009. Capital spending for property and
equipment decreased to $63 thousand in 2010, a decrease of $542 thousand from 2009, and proceeds from the
sales of investments decreased to $6.1 million in 2010, a decrease of $7.9 million from 2009. Net cash used by
financing activities was $35.5 million in 2010, compared to net cash used by financing activities of $25.5 million
in 2009. Cash used by financing activities in 2010 consists of $36.3 million special dividend payment offset by
proceeds from common stock issuances.

Selected Quarterly Information

Unaudited quarterly results of operations for the years ended December 31, 2011 and 2010 is summarized

below:

(in thousands, except per share data)

12/31

09/30

06/30

03/31

12/31

09/30

06/30

03/31

Assets under management

At or For the Quarter Ended

2011

2010

(in millions) . . . . . . . . . . . . . . . . . $ 8,671 $ 7,719 $ 9,186 $ 9,250 $ 8,623 $ 7,080 $ 6,482 $ 6,876
13,391
9,462

Total revenue . . . . . . . . . . . . . . . . . .
Total operating expenses . . . . . . . . .

15,516
9,272

13,754
9,652

14,043
9,844

15,370
9,926

16,450
11,001

15,190
8,873

16,828
10,977

Operating income . . . . . . . . . . . . . . .

6,317

5,444

5,851

5,449

6,244

4,199

4,102

3,929

245
Investment return . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . $ 4,453 $ 2,539 $ 3,729 $ 3,632 $ 4,464 $ 3,438 $ 1,830 $ 2,670

(1,309)

(1,184)

1,170

781

974

371

90

Diluted EPS . . . . . . . . . . . . . . . . . . . $

1.49 $

0.84 $

1.26 $

1.28 $

1.60 $

1.24 $

0.66 $

0.98

Diluted shares outstanding . . . . . . . .

2,994

3,006

2,967

2,838

2,794

2,779

2,774

2,721

16

Contractual Obligations

The following table presents a summary of the Company’s future obligations under the terms of an operat-
ing lease and other contractual purchase obligations at December 31, 2011. Other purchase obligations include
contractual amounts that will be due for the purchase of services to be used in the Company’s operations such as
mutual fund sub-administration and portfolio accounting software. These obligations may be cancelable at earlier
times than those indicated and, under certain conditions, may involve termination fees. Because these obligations
are of a normal recurring nature, the Company expects that it will fund them from future cash flows from oper-
ations. The information presented does not include operating expenses or capital expenditures that will be com-
mitted in the normal course of operations in 2012 and future years:

(in thousands)

Payments Due by Period

Total

2012

2013-2014

2015-2016 Later

Operating lease obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purchase obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,889
4,545

$ 440
2,142

$ 814
2,387

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$6,434

$2,582

$3,201

$635
16

$651

$—
—

$—

Use of Supplemental Data as Non-GAAP Performance Measure

Net Operating Income After Tax

As supplemental information, we are providing performance measures that are based on methodologies
other than generally accepted accounting principles (“non-GAAP”) for “Net Operating Income After Tax” that
management uses as benchmarks in evaluating and comparing the period-to-period operating performance of the
Company and its subsidiaries.

The Company defines “net operating income after tax” as the Company’s net operating income less income
tax provision excluding investment return and the tax impact related to the investment return. The Company
believes that “net operating income after tax” provides a good representation of the Company’s operating per-
formance, as it excludes the impact of investment return on financial results. The amount of the investment port-
folio and market fluctuations on the investments can change significantly from one period to another, which can
distort the underlying earnings potential of a company. We also believe “net operating income after tax” is an
important metric in estimating the value of an asset management business. This non-GAAP measure is provided
in addition to net income and net operating income and is not a substitute for net income or net operating income
and may not be comparable to non-GAAP performance measures of other companies.

(in thousands, except per share data)

Net operating income, GAAP basis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Non-GAAP adjustments:

Year Ended December 31,

2011

2010

2009

$23,061

$18,473

$12,112

Tax provision excluding impact of investment return . . . . . . . . . . . . . . . . . . . . .

8,667

6,830

4,245

Net operating income after tax, non-GAAP basis . . . . . . . . . . . . . . . . . . . . . . . . . .

$14,394

$11,643

$ 7,867

Net operating income after tax per basic share, non-GAAP basis . . . . . . . . . . . . . .
Net operating income after tax per diluted share, non-GAAP basis . . . . . . . . . . . .

$
$

4.88
4.88

$
$

4.21
4.21

$
$

3.05
3.04

Basic weighted average shares outstanding, GAAP basis . . . . . . . . . . . . . . . . . . . .
Diluted weighted average shares outstanding, GAAP basis . . . . . . . . . . . . . . . . . .

2,952
2,952

2,767
2,768

2,583
2,588

The tax provision excluding impact of investment return is calculated by applying the tax rate calculated

from the income statement to net operating income.

17

Off-Balance Sheet Arrangements

The Company has no off-balance sheet arrangements. It does not have any obligation under a guarantee
contract, or a retained or contingent interest in assets or similar arrangement that serves as credit, liquidity or
market risk support for such assets, or any other obligation, including a contingent obligation, under a contract
that would be accounted for as a derivative instrument or arising out of a variable interest.

Critical Accounting Policies and Estimates

Provisions for Income Taxes. The objectives of accounting for income taxes are to recognize the amount
of taxes payable or refundable for the current year and deferred tax liabilities and assets for the future tax con-
sequences of events that have been recognized in an entity’s financial statements or tax returns. Judgment is
required in assessing the future tax consequences of events that have been recognized in the Company’s financial
statements or tax returns.

Revenue Recognition on Incentive-Based Advisory Contracts. The Company has certain investment advi-
sory contracts in which a portion of the fees are based on investment performance achieved in the respective
client portfolio in excess of a specified hurdle rate. For management fees based on a formula, there are two
methods by which incentive revenue may be recorded. Under “Method 1,” incentive fees are recorded at the end
of the contract year. Under “Method 2,” incentive fees are recorded periodically and calculated as the amount
that would be due under the formula at any point in time as if the contract was terminated at that date. Manage-
ment has chosen the more conservative Method 1, in which performance fees are recorded at the end of the con-
tract period provided for by the contract terms.

Revenue Recognition when Acting as an Agent vs. Principal. The Funds have selected and contractually
engaged certain vendors to fulfill various services to benefit the Funds’ shareholders or to satisfy regulatory
requirements of the Funds. These services include, among others, required fund shareholder mailings, registra-
tion fees, legal and audit fees. DHCM, in fulfilling a portion of its role under the administration agreement with
the Funds, acts as agent to pay these obligations of the Funds. Each vendor is independently responsible for ful-
fillment of the services it has been engaged to provide and negotiates fees and terms with the management and
board of trustees of the Funds. The fee that the Funds pay to DHCM is reviewed annually by the Funds’ board of
trustees and specifically takes into account the contractual expenses that DHCM pays on behalf of the Funds. As
a result, DHCM is not involved in the delivery or pricing of these services and bears no risk related to these serv-
ices. Revenue has been recorded net of these Fund expenses, as it is the appropriate accounting treatment for this
agency relationship.

Beacon Hill has underwriting agreements with certain clients, including registered mutual funds. Part of
Beacon Hill’s role as underwriter is to act as an agent on behalf of its mutual fund clients to receive 12b-1/service
fees and commission revenue and facilitate the payment of those fees and commissions to third parties who pro-
vide services to the funds and their shareholders. The amount of 12b-1/service fees and commissions are
determined by each mutual fund client and Beacon Hill bears no financial risk related to these services. As a
result, 12b-1/service fees and commission revenue has been recorded net of the expense payments to third par-
ties, as it is the appropriate accounting treatment for this agency relationship.

ITEM 7A. Quantitative and Qualitative Disclosures About Market Risk

The Company’s revenues and net income are based primarily on the value of AUM. Accordingly, declines
in financial market values directly and negatively impact the Company’s investment advisory revenues and net
income.

The Company invests in Diamond Hill Funds and its private investment funds, which are market risk sensi-
tive financial instruments. These investments have inherent market risk in the form of equity price risk; that is,
the potential future loss of value that would result from a decline in their fair value. The bond fund is also subject
to market risk which may arise from changes in equity prices, credit ratings and interest rates. Market prices fluc-
tuate and the amount realized upon subsequent sale may differ significantly from the reported market value.

18

The table below summarizes the Company’s market risks as of December 31, 2011, and shows the effects of

a hypothetical 10% increase and decrease in equity and bond investments.

Fair Value as of
December 31, 2011

Fair Value Assuming
a Hypothetical 10%
Increase

Fair Value Assuming
a Hypothetical 10%
Decrease

Equity investments . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bond investments . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$8,011,205
197,284

$8,812,326
217,012

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$8,208,489

$9,029,338

$7,210,085
177,556

$7,387,641

19

ITEM 8. Financial Statements and Supplementary Data

Report of Independent Registered Public Accounting Firm

The Shareholders and Board of Directors of
Diamond Hill Investment Group, Inc.:

We have audited the accompanying consolidated balance sheet of Diamond Hill Investment Group, Inc. and
its subsidiaries as of December 31, 2011 and 2010, and the related consolidated statements of income, share-
holders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2011. We also
have audited the Company’s internal control over financial reporting as of December 31, 2011, based on criteria
established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations
of the Treadway Commission (COSO). Management is responsible for these financial statements, for maintaining
effective internal control over financial reporting, and for its assessment of the effectiveness of internal control
over financial reporting, included in the accompanying financial statements. Our responsibility is to express an
opinion on these financial statements and an opinion on the company’s internal control over financial reporting
based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight
Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assur-
ance about whether the financial statements are free of material misstatement and whether effective internal con-
trol over financial reporting was maintained in all material respects. Our audits of the financial statements
included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements,
assessing the accounting principles used and significant estimates made by management, and evaluating the
overall financial statement presentation. Our audit of internal control over financial reporting included obtaining
an understanding of internal control over financial reporting, assessing the risk that a material weakness exists,
and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.
Our audits also included performing such other procedures as we considered necessary in the circumstances. We
believe that our audits provide a reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance
regarding the reliability of financial reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles. A company’s internal control over financial reporting
includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail,
accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable
assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance
with generally accepted accounting principles, and that receipts and expenditures of the company are being made
only in accordance with authorizations of management and directors of the company; and (3) provide reasonable
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the compa-
ny’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect mis-
statements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that con-
trols may become inadequate because of changes in conditions, or that the degree of compliance with the policies
or procedures may deteriorate.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects,
the financial position of Diamond Hill Investment Group, Inc. and its subsidiaries as of December 31, 2011 and
2010, and the consolidated results of its operations and its cash flows for each of the years in the three-year
period ended December 31, 2011 in conformity with accounting principles generally accepted in the United
States of America. Also in our opinion, Diamond Hill Investment Group, Inc. maintained, in all material respects,
effective internal control over financial reporting as of December 31, 2011, based on criteria established in
Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Tread-
way Commission (COSO).

/s/ Plante & Moran, PLLC
Columbus, Ohio
March 7, 2012

20

Diamond Hill Investment Group, Inc.
Consolidated Balance Sheets

December 31,

2011

2010

ASSETS
Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Investment portfolio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Furniture and equipment, net of depreciation, and other assets . . . . . . . . . . . . . . . .
Income tax receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 15,242,768
8,208,489
10,295,723
920,460
829,781
139,696
2,083,402

$ 5,775,526
11,527,060
8,695,103
787,033
907,670
—
873,474

Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 37,720,319

$ 28,565,866

LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities

Accounts payable and accrued expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued incentive compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income tax payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 2,895,504
16,774,457
—

$ 3,432,868
16,779,461
855,285

Total liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19,669,961

21,067,614

Commitments and contingencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shareholders’ Equity

Common stock, no par value 7,000,000 shares authorized; 2,995,814 issued

and outstanding at December 31, 2011; 2,795,683 issued and outstanding at
December 31, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preferred stock, undesignated, 1,000,000 shares authorized and unissued . . . . .
Deferred compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Retained earnings/(Accumulated deficit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—

—

49,995,622
—
(11,539,632)
(20,405,632)

34,423,011
—
(7,137,729)
(19,787,030)

Total shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18,050,358

7,498,252

Total liabilities and shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 37,720,319

$ 28,565,866

Book value per share . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

6.03

$

2.68

The accompanying notes are an integral part of these consolidated financial statements.

21

Diamond Hill Investment Group, Inc.
Consolidated Statements of Income

Year Ended December 31,

2011

2010

2009

REVENUES:

Investment advisory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Mutual fund administration, net

$56,016,708
7,821,766

$49,248,586
7,455,537

$37,472,407
6,089,979

Total revenue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

63,838,474

56,704,123

43,562,386

OPERATING EXPENSES:

Compensation and related costs . . . . . . . . . . . . . . . . . . . . . . . . . . .
General and administrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sales and marketing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third party distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mutual fund administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32,874,606
4,425,031
1,145,229
828,490
1,504,005

30,990,572
3,408,981
853,851
1,036,231
1,941,160

24,113,631
3,133,359
751,040
1,112,460
2,339,544

Total operating expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40,777,361

38,230,795

31,450,034

NET OPERATING INCOME . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23,061,113

18,473,328

12,112,352

Investment return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(66,664)

1,205,194

5,398,636

INCOME BEFORE TAXES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income tax provision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22,994,449
(8,641,481)

19,678,522
(7,276,081)

17,510,988
(6,137,045)

NET INCOME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$14,352,968

$12,402,441

$11,373,943

Earnings per share

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

4.86

4.86

$

$

4.48

4.48

$

$

4.40

4.40

Weighted average shares outstanding

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,951,751

2,766,741

2,582,998

Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,951,751

2,767,895

2,587,751

The accompanying notes are an integral part of these consolidated financial statements.

22

Diamond Hill Investment Group, Inc.
Consolidated Statements of Shareholders’ Equity

Shares
Outstanding

Common
Stock

Deferred
Compensation

Retained Earnings
(Accumulated Deficit)

Total

Balance at January 1, 2009 . . . . . . . . . . . . . . . . .

2,447,299

$16,233,501

$ (4,908,215)

$ 18,920,601

$ 30,245,887

Issuance of restricted stock grants . . . . . . . . . .

78,092

4,836,595

(4,836,595)

Amortization of restricted stock grants . . . . . .

—

—

1,674,113

Issuance of stock grants . . . . . . . . . . . . . . . . .

135,313

5,032,290

Issuance of common stock related to 401k

plan match . . . . . . . . . . . . . . . . . . . . . . . . . .

Tax benefit from equity transactions . . . . . . . .

Payment of taxes withheld related to vested

15,610

—

758,459

134,741

restricted stock grants . . . . . . . . . . . . . . . . .

(2,737)

(140,602)

Exercise of options/warrants for common

stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4,000

67,500

Dividend Paid of $10.00 per share . . . . . . . . .

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

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

(26,165,624)

11,373,943

—

1,674,113

5,032,290

758,459

134,741

(140,602)

67,500

(26,165,624)

11,373,943

Balance at December 31, 2009 . . . . . . . . . . . . . .

2,677,577

$26,922,484

$ (8,070,697)

$ 4,128,920

$ 22,980,707

Issuance of restricted stock grants . . . . . . . . . .

20,753

1,458,898

(1,458,898)

Amortization of restricted stock grants . . . . . .

—

—

2,391,866

Issuance of stock grants . . . . . . . . . . . . . . . . .

83,611

5,182,983

Issuance of common stock related to 401k

plan match . . . . . . . . . . . . . . . . . . . . . . . . . .

Tax benefit from equity transactions . . . . . . . .

Payment of taxes withheld related to vested

13,631

—

897,842

84,375

restricted stock grants . . . . . . . . . . . . . . . . .

(1,889)

(146,071)

Exercise of options/warrants for common

stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2,000

22,500

Cash Dividend Paid of $13.00 per share . . . . .

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

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

(36,318,391)

12,402,441

—

2,391,866

5,182,983

897,842

84,375

(146,071)

22,500

(36,318,391)

12,402,441

Balance at December 31, 2010 . . . . . . . . . . . . . .

2,795,683

$34,423,011

$ (7,137,729)

$(19,787,030)

$ 7,498,252

Issuance of restricted stock grants . . . . . . . . . .

109,333

8,686,586

(8,686,586)

Amortization of restricted stock grants . . . . . .

—

—

3,742,909

Issuance of stock grants . . . . . . . . . . . . . . . . .

103,899

7,691,800

Issuance of common stock related to 401k

plan match . . . . . . . . . . . . . . . . . . . . . . . . . .

Tax benefit from equity transactions . . . . . . . .

Payment of taxes withheld related to vested

restricted stock grants . . . . . . . . . . . . . . . . .

Forfeiture of restricted stock grants . . . . . . . .

12,754

—

(2,025)

(8,368)

960,888

7,007

(158,988)

(541,774)

Repurchase of common stock . . . . . . . . . . . . .

(15,462)

(1,072,908)

Cash Dividend Paid of $5.00 per share . . . . . .

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

—

—

—

—

—

—

—

—

541,774

—

—

—

—

—

—

—

—

—

—

—

(14,971,570)

14,352,968

—

3,742,909

7,691,800

960,888

7,007

(158,988)

—

(1,072,908)

(14,971,570)

14,352,968

Balance at December 31, 2011 . . . . . . . . . . . . . .

2,995,814

$49,995,622

$(11,539,632)

$(20,405,632)

$ 18,050,358

The accompanying notes are an integral part of these consolidated financial statements.

23

Diamond Hill Investment Group, Inc.
Consolidated Statements of Cash Flows

CASH FLOWS FROM OPERATING ACTIVITIES:

Net Income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments to reconcile net income to net cash provided by

(used in) operating activities:
Depreciation on furniture and equipment . . . . . . . . . . . . . . . .
Stock-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Increase) decrease in accounts receivable . . . . . . . . . . . . . . .
Change in deferred income taxes . . . . . . . . . . . . . . . . . . . . . .
Investment gain/loss, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Increase in accrued liabilities . . . . . . . . . . . . . . . . . . . . . . . . .
Other changes in assets and liabilities . . . . . . . . . . . . . . . . . . .

Year Ended December 31,

2011

2010

2009

$ 14,352,968

$ 12,402,441

$ 11,373,943

330,971
3,972,725
(1,600,620)
(1,221,328)
111,078
6,919,616
(1,110,001)

326,529
2,571,702
1,448,901
(382,227)
167,495
8,449,814
148,913

268,572
1,854,187
(4,804,446)
1,438,658
(4,055,840)
7,323,481
3,599,790

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

21,755,409

25,133,568

16,998,345

CASH FLOWS FROM INVESTING ACTIVITIES:

Purchase of furniture and equipment
. . . . . . . . . . . . . . . . . . . . .
Cost of investments purchased and other portfolio activity . . . .
Proceeds from sale of investments . . . . . . . . . . . . . . . . . . . . . . .

(253,082)
(925,507)
4,133,000

(62,529)
(1,314,588)
6,050,000

(604,928)
(9,149,453)
13,960,937

Net cash provided by investing activities . . . . . . . . . . . . . .

2,954,411

4,672,883

4,206,556

CASH FLOWS FROM FINANCING ACTIVITIES:

Payment for repurchase of common shares . . . . . . . . . . . . . . . .
Payment of taxes withheld on employee stock transactions . . . .
Proceeds from common stock issuance . . . . . . . . . . . . . . . . . . . .
Payment of dividends . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(1,072,908)
(158,988)
960,888
(14,971,570)

—
(146,071)
920,343
(36,318,391)

—
(140,602)
825,959
(26,165,624)

Net cash used in financing activities . . . . . . . . . . . . . . . . . .

(15,242,578)

(35,544,119)

(25,480,267)

CASH AND CASH EQUIVALENTS

Net change during the year . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
At beginning of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9,467,242
5,775,526

(5,737,668)
11,513,194

(4,275,366)
15,788,560

At end of year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 15,242,768

$ 5,775,526

$ 11,513,194

Supplemental cash flow information:

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

$

— $

— $

10,849,000

7,444,300

—
2,625,900

Supplemental disclosure of non-cash transactions:

Common stock issued as incentive compensation . . . . . . . . . . .

7,461,984

5,003,146

4,852,216

The accompanying notes are an integral part of these consolidated financial statements.

24

Diamond Hill Investment Group, Inc.
Notes to Consolidated Financial Statements

Note 1 Business and Organization

Diamond Hill Investment Group, Inc. (the “Company”) derives its consolidated revenues and net income
primarily from investment advisory and fund administration services. The Company has four operating sub-
sidiaries.

Diamond Hill Capital Management, Inc. (“DHCM”), an Ohio corporation, is a wholly owned subsidiary of
the Company and a registered investment adviser. DHCM is the investment adviser to the Diamond Hill Funds
(the “Funds”), a series of open-end mutual funds, private investment funds (“Private Funds”), and also offers
advisory services to institutional and individual investors.

Diamond Hill GP (Cayman) Ltd. (“DHGP”) was incorporated in the Cayman Islands as an exempted com-
pany on May 18, 2006 for the purpose of acting as the general partner of a Cayman Islands exempted limited
partnership. This limited partnership acts as a master fund for Diamond Hill Offshore Ltd., a Cayman Islands
exempted company; and Diamond Hill Investment Partners II, L.P., an Ohio limited partnership. DHGP has no
operating activity.

Beacon Hill Fund Services, Inc. (“BHFS”), an Ohio corporation, is a wholly owned subsidiary of the Com-
pany incorporated on January 29, 2008. BHFS provides certain compliance, treasury, and fund administration
services to mutual fund companies. BHIL Distributors, Inc. (“BHIL”), an Ohio corporation, is a wholly owned
subsidiary of BHFS incorporated on February 19, 2008. BHIL provides underwriting and distribution services to
mutual fund companies. BHFS and BHIL collectively operate as Beacon Hill.

Note 2 Significant Accounting Policies

The preparation of 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 and the reported amounts of revenues and expenses for the periods. Actual
results could differ from those estimates. Certain prior year amounts and disclosures have been reclassified to
conform to the current year financial presentation. Book value per share is computed by dividing total share-
holders’ equity by the number of shares issued and outstanding at the end of the measurement period. The
following is a summary of the Company’s significant accounting policies:

Principles of Consolidation

The accompanying consolidated financial statements include the operations of the Company and its sub-

sidiaries. All material inter-company transactions and balances have been eliminated in consolidation.

Segment Information

Management has determined that the Company operates in one business segment, namely providing invest-
ment management and administration services to mutual funds, separate accounts, and private investment funds.
Therefore, no disclosures relating to operating segments are required in annual or interim financial statements.

Cash and Cash Equivalents

Cash and cash equivalents include demand deposits and money market funds.

Accounts Receivable

Accounts receivable are recorded when they are due and are presented in the balance sheet, net of any allow-
ance for doubtful accounts. Accounts receivable are written off when they are determined to be uncollectible.
Any allowance for doubtful accounts is estimated based on the Company’s historical losses, existing conditions
in the industry, and the financial stability of those individuals or entities that owe the receivable. No allowance
for doubtful accounts was deemed necessary at December 31, 2011 or 2010.

25

Valuation of Investment Portfolio

Investments held by the Company are valued based upon the definition of Level 1 inputs and Level 2 inputs.
Level 1 inputs are defined as fair values which use quoted prices in active markets for identical assets or
liabilities that the Company has the ability to access. Level 2 inputs are defined as quoted prices in markets that
are not considered to be active for identical assets or liabilities, quoted prices in active markets for similar assets
or liabilities, and inputs other than quoted prices that are directly observable or indirectly through corroboration
with observable market data. The following table summarizes the Company’s investments valued based upon
Level 1 and Level 2 inputs as of December 31, 2011 and 2010:

As of December 31,

2011

2010

Level 1 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Level 2 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,230,560
6,977,929

$ 1,265,998
10,261,062

Level 1 investments are all registered investment companies (mutual funds). Level 2 investments are all

limited partnerships. There have been no transfers in or out of the levels.

The changes in market values on the investments are recorded in the Consolidated Statements of Income as

investment returns.

Limited Partnership Interests

DHCM is the managing member of Diamond Hill General Partner, LLC, the General Partner of Diamond
Hill Investment Partners, LP (“DHIP”), Diamond Hill Investment Partners II, LP (“DHIP II”), Diamond Hill
Research Partners, LP (“DHRP”), and Diamond Hill Research Partners — International, LP (“DHRPI”), collec-
tively (the “Partnerships”), each a limited partnership whose underlying assets consist of marketable securities.

DHCM, in its role as managing member of the General Partner, has the power to direct the Partnerships’
economic activities and the right to receive investment advisory and performance incentive fees that are sig-
nificant to the Partnerships. The Partnerships are subject to investment company accounting and, as a result, they
have not been consolidated in presenting the accompanying financial statements. DHCM’s investments in these
partnerships are reported as a component of the Company’s investment portfolio, valued at DHCM’s propor-
tionate interest in the net asset value of the marketable securities held by the Partnerships. Gains and losses
attributable to changes in the value of DHCM’s interests in the Partnerships are included in the Company’s
reported investment return.

The Company’s exposure to loss as a result of its involvement with the Partnerships is limited to the amount
of its investments. DHCM is not obligated to provide financial or other support to the Partnerships, other than its
investments to date and its contractually provided investment advisory responsibilities, and has not provided such
support. The Company has not provided liquidity arrangements, guarantees or other commitments to support the
Partnerships’ operations, and the Partnerships’ creditors and interest holders have no recourse to the general
credit of the Company.

Several board members, officers and employees of the Company invest in DHIP, DHIP II, and DHRP
through Diamond Hill General Partner, LLC. These individuals receive no remuneration as a result of their per-
sonal investment in the Partnerships. The capital of Diamond Hill General Partner, LLC is not subject to a man-
agement fee or an incentive fee.

Furniture and Equipment

Furniture and equipment, consisting of computer equipment, furniture, and fixtures, are carried at cost less
accumulated depreciation. Depreciation is calculated using the straight-line method over estimated lives of three
to seven years.

Revenue Recognition — General

The Company earns substantially all of its revenue from investment advisory and fund administration serv-
ices. Mutual fund investment advisory and administration fees, generally calculated as a percentage of assets

26

under management, are recorded as revenue as services are performed. Managed account and private investment
fund clients provide for monthly or quarterly management fees, in addition to quarterly or annual performance
fees.

Revenue Recognition — Performance Incentive Revenue

The Company’s private investment funds and certain managed accounts provide for performance incentive
fees. For management fees based on a formula, there are two methods by which incentive revenue may be
recorded. Under “Method 1,” incentive fees are recorded at the end of the contract period; under “Method 2,” the
incentive fees are recorded periodically and calculated as the amount that would be due under the formula at any
point in time as if the contract was terminated at that date. Management has chosen Method 1, in which incentive
fees are recorded at the end of the contract period for the specific client in which the incentive fee applies. The
table below shows assets under management (“AUM”) subject to performance incentive fees and the perform-
ance incentive fees as calculated under each of the above methods:

As Of December 31,

2011

2010

2009

AUM — Contractual Period Ends Quarterly . . . . . . . . . . . . . . . .
AUM — Contractual Period Ends Annually . . . . . . . . . . . . . . . . .

$ 89,070,421
81,362,029

$108,671,900
175,231,841

$108,974,458
196,469,025

Total AUM Subject to Performance Incentive . . . . . . . . . . . . . . .

$170,432,450

$283,903,741

$305,443,483

Performance Incentive Fees — Method 1 . . . . . . . . . . . . . . . . . . .
Performance Incentive Fees — Method 2 . . . . . . . . . . . . . . . . . . .

Revenue Recognition — Mutual Fund Administration

For The Year Ending December 31,

2011

$2,597
2,597

2010

2009

$217,588
217,588

$1,050,895
1,262,922

DHCM has an administrative and transfer agency services agreement with the Funds, under which DHCM
performs certain services for each fund. These services include mutual fund administration, transfer agency and
other related functions. For performing these services, each fund compensates DHCM a fee, which is calculated
using the following annual rates times the average daily net assets of each respective series and share class:

Prior to February 28,
2011

After February 28,
2011

Class A and Class C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Class I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0.30%
0.19%

0.26%
0.24%

The Funds have selected and contractually engaged certain vendors to fulfill various services to benefit the
Funds’ shareholders or to satisfy regulatory requirements of the Funds. These services include, among others,
required fund shareholder mailings, federal and state registrations, legal and audit. DHCM, in fulfilling a portion
of its role under the administration agreement with the Funds, acts as agent to pay these obligations of the Funds.
Each vendor is independently responsible for fulfillment of the services it has been engaged to provide and nego-
tiates fees and terms with the management and board of trustees of the Funds. The fee that the Funds pay to
DHCM is reviewed annually by the Funds’ board of trustees and specifically takes into account the contractual
expenses that DHCM pays on behalf of the Funds. As a result, DHCM is not involved in the delivery or pricing
of these services and bears no risk related to these services. Revenue has been recorded net of these Fund related
expenses, as it is the appropriate accounting treatment for this agency relationship. In addition, DHCM finances
the upfront commissions which are paid by the Fund’s principal underwriter to brokers who sell Class C shares
of the Funds. As financer, DHCM advances to the underwriter the commission amount to be paid to the selling
broker at the time of sale. These advances are capitalized and amortized over 12 months to correspond with the
repayments DHCM receives from the principal underwriter to recoup this commission advancement.

Beacon Hill has underwriting and administrative service agreements with certain clients, including regis-
tered mutual funds. The fee arrangements vary from client to client based upon services provided and are

27

recorded as revenue under Mutual Fund Administration on the Consolidated Statements of Income. Part of Bea-
con Hill’s role as underwriter is to act as an agent on behalf of its mutual fund clients to receive 12b-1/service
fees and commission revenue and facilitate the payment of those fees and commissions to third parties who pro-
vide services to the funds and their shareholders. The amount of 12b-1/service fees and commissions are
determined by each mutual fund client and Beacon Hill bears no financial risk related to these services. As a
result, 12b-1/service fees and commission revenue have been recorded net of the expense payments to third par-
ties as it is the appropriate accounting treatment for this agency relationship.

Mutual fund administration gross and net revenue are summarized below:

Year Ended December 31,

2011

2010

2009

Mutual fund administration:

Administration revenue, gross . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12b-1/service fees and commission revenue received from fund

$11,617,140

$10,940,041

$ 9,257,464

clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7,058,471

8,122,268

5,260,383

12b-1/service fees and commission expense payments to third

parties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fund related expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(7,058,471)
(3,830,977)

(8,122,268)
(3,554,156)

(5,260,383)
(3,141,229)

Revenue, net of fund related expenses . . . . . . . . . . . . . . . . . . . . . . .

7,786,163

7,385,885

6,116,235

DHCM C-Share financing:

Broker commission advance repayments . . . . . . . . . . . . . . . . . . . .
Broker commission amortization . . . . . . . . . . . . . . . . . . . . . . . . . . .

352,740
(317,137)

619,490
(549,838)

763,383
(789,639)

Financing activity, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35,603

69,652

(26,256)

Mutual fund administration revenue, net . . . . . . . . . . . . . . . . . . . . . . .

$ 7,821,766

$ 7,455,537

$ 6,089,979

Third Party Distribution Expense

Third party distribution expenses are earned by various third party financial services firms based on sales
and/or assets of the Company’s investment products generated by the respective firms. Expenses recognized
represent actual payments made to the third party firms and are recorded in the period earned based on the terms
of the various contracts.

Income Taxes

The Company accounts for income taxes through an asset and liability approach. A net deferred tax asset or
liability is determined based on the tax effects of the various temporary differences between the book and tax
bases of the various balance sheet assets and liabilities and gives current recognition to changes in tax rates and
laws.

The Company has analyzed its tax positions taken on federal income tax returns for all open tax years (tax
years ended December 31, 2008 through 2011) to determine any uncertainty in income taxes and has recognized
no adjustment in the net asset or liability.

Earnings Per Share

Basic earnings per share (“EPS”) excludes dilution and is computed by dividing net income by the weighted
average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution of EPS
that could occur if options and warrants were exercised. At December 31, 2011, there were no options or war-
rants outstanding.

28

Note 3 Investment Portfolio

As of December 31, 2011, the Company held investments worth $8.2 million and an estimated cost basis of

$5.3 million. The following table summarizes the market value of these investments for the last two fiscal years:

As of December 31,

2011

2010

Diamond Hill Small Cap Fund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diamond Hill Small-Mid Cap Fund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diamond Hill Large Cap Fund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diamond Hill Select Fund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diamond Hill Long-Short Fund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diamond Hill Strategic Income Fund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diamond Hill Investment Partners, L.P. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diamond Hill Investment Partners II, L.P. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diamond Hill Research Partners, L.P.
. . . . . . . . . . . . . . . . . . . . . . . .
Diamond Hill Research Partners — International, L.P.

$ 189,042
203,571
213,110
214,833
212,720
197,284
156,122
131,203
5,770,874
919,730

$

211,301
217,915
210,413
221,491
206,312
198,566
1,177,098
1,155,022
7,928,942
—

Total Investment Portfolio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$8,208,489

$11,527,060

DHCM is the managing member of the Diamond Hill General Partner LLC, which is the General Partner of
the Partnerships. The underlying assets of the Partnerships are cash and marketable equity securities. Summary
financial information, including the Company’s carrying value and income from the Partnerships is as follows:

As of December 31,

2011

2010

2009

Total partnership assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total partnership liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$130,880,368
21,570,822

$173,007,238
32,855,190

$188,716,374
40,583,059

Net partnership assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DHCM’s portion of net assets . . . . . . . . . . . . . . . . . . . . . . . . . . . .

109,309,546
6,977,929

140,152,048
10,261,062

148,133,315
12,321,797

For the Year Ended December 31,

2011

2010

2009

Net partnership income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
DHCM’s portion of net income (loss)

(11,007,617)
(75,082)

4,486,719
939,265

35,193,357
4,634,391

DHCM’s income from the Partnerships includes its pro-rata capital allocation and its share of an incentive

allocation, if any, from the limited partners.

Note 4 Capital Stock

Common Shares

The Company has only one outstanding class of securities, Common Shares.

Authorization of Preferred Shares

The Company’s Articles of Incorporation authorize the issuance of 1,000,000 shares of “blank check” pre-
ferred shares with such designations, rights and preferences, as may be determined from time to time by the
Company’s Board of Directors. The Board of Directors is authorized, without shareholder approval, to issue
preferred stock with dividend, liquidation, conversion, voting, or other rights, which could adversely affect the
voting or other rights of the holders of the Common Shares. There were no shares of preferred stock issued or
outstanding at December 31, 2011 or December 31, 2010.

29

Note 5 Stock-Based Compensation

Equity Incentive Plans

2011 Equity and Cash Incentive Plan

At the Company’s annual shareholder meeting on April 26, 2011, shareholders approved the 2011 Equity
and Cash Incentive Plan (“2011 Plan”). The 2011 Plan is intended to facilitate the Company’s ability to attract
and retain staff, provide additional incentive to employees, directors and consultants, and promote the success of
the Company’s business. The 2011 Plan authorizes the issuance of 600,000 Common Shares of the Company in
various forms of equity awards. As of December 31, 2011, there were 493,125 Common Shares available for
issuance under the 2011 Plan. The 2011 Plan provides that the Board of Directors, or a committee appointed by
the Board, may grant awards and otherwise administer the 2011 Plan. Restricted stock grants issued under the
2011 Plan, which vest over time, are recorded as deferred compensation in the equity section of the balance sheet
on the grant date and then recognized as compensation expense based on the grant date price over the vesting
period of the respective grant.

2005 Employee and Director Equity Incentive Plan

At the Company’s annual shareholder meeting on May 12, 2005, shareholders approved the 2005 Employee
and Director Equity Incentive Plan (“2005 Plan”). With the approval of the 2011 Plan, there are no longer any
Common Shares available for future issuance under the 2005 Plan. Outstanding grants under the 2005 Plan are
unaffected and remain issued and outstanding. Restricted stock grants issued under the 2005 Plan, which vest
over time, are recorded as deferred compensation in the equity section of the balance sheet on the grant date and
then recognized as compensation expense based on the grant date price over the vesting period of the respective
grant.

Restricted Stock Grant Transactions

The following table represents a roll-forward of outstanding restricted stock grants issued pursuant to the

2011 and 2005 Plans and related activity during the year ended December 31, 2011:

Outstanding restricted stock grants as of December 31, 2010 . . . . . . . . . . . . . . . . . . .
Granted to Employees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grants Vested . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grants Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shares

164,832
109,333
(5,176)
(8,368)

Outstanding restricted stock grants as of December 31, 2011 . . . . . . . . . . . . . . . . . . .

260,621

Weighted-Average
Grant Date Price
per Share

$69.72
79.45
78.85
64.74

$73.78

Total deferred compensation related to unvested restricted stock grants was $11,539,632 as of December 31,

2011. Expense recognition of deferred compensation over the remaining vesting periods is as follows:

2012

2013

2014

2015

2016

Total

$ 3,683,502

$3,086,139

$2,782,304

$1,908,382

$79,305

$11,539,632

30

401(k) Plan

The Company sponsors a 401(k) plan in which all employees participate. Employees may contribute a por-
tion of their compensation subject to certain limits based on federal tax laws. The Company makes matching
contributions of Common Shares of the Company with a value equal to 200 percent of the first six percent of an
employee’s compensation contributed to the plan. Employees become fully vested in the matching contributions
after six plan years of employment. The following table summarizes the Company’s expenses attributable to the
plan during the years ended December 31, 2011, 2010, and 2009:

2011

$960,888

Stock Options and Warrants

For the year ended December 31,

2010

$897,843

2009

$758,459

The Company recognizes all share-based payments to employees and directors, including grants of stock
options, as expense in the income statement based on their fair values. The amount of compensation is measured
at the fair value of the options when granted, and this cost is expensed over the required service period, which is
normally the vesting period of the options. There were no stock options outstanding during the periods presented
in these financial statements. There were no warrants outstanding as of December 31, 2011 and 2010.

Warrant transactions during the periods presented in these financial statements are summarized below:

Warrants

Shares

Weighted Average
Exercise Price

Oustanding December 31, 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10,000

Exercisable December 31, 2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10,000

Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expired / Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exercised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—
—
4,000

Oustanding December 31, 2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6,000

Exercisable December 31, 2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6,000

Granted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expired / Forfeited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exercised . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Oustanding December 31, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Exercisable December 31, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—
4,000
2,000

—

—

$13.00

$13.00

—

16.88

$10.42

$10.42

—
10.00
11.25

$ —

$ —

Note 6 Operating Leases

The Company leases approximately 25,500 square feet of office space at two locations. The following table

summarizes the total lease and operating expenses for the years ended December 31, 2011, 2010, and 2009:

2011

$620,360

For the year ended December 31,

2010

$573,218

2009

$501,209

The approximate future minimum lease payments under the operating leases are as follows:

2012

$440,000

2013

$417,000

2014

$397,000

31

2015

$401,000

2016

$234,000

In addition to the above rent, the Company is also responsible for normal operating expenses of the proper-
ties. Such operating expenses were approximately $9.60 per square foot in 2011, on a combined basis, and are
expected to be approximately $9.69 per square foot in 2012.

Note 7 Income Taxes

The Company files a consolidated Federal income tax return. It is the policy of the Company to allocate the
consolidated tax provision to subsidiaries as if each subsidiary’s tax liability or benefit were determined on a
separate company basis. As part of the consolidated group, subsidiaries transfer to the Company their current
Federal tax liability or assets.

As of December 31,

2011

2010

2009

Current city income tax provision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current state income tax provision . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current federal income tax provision . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred federal income tax provision (benefit) . . . . . . . . . . . . . . . . . . .

$

658,106
271,776
8,921,527
(1,209,928)

$ 514,076
147,642
6,966,872
(352,509)

$ 266,711
44,000
4,358,283
1,468,051

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

$ 8,641,481

$7,276,081

$6,137,045

A reconciliation of income tax expense at the statutory federal rate to the Company’s income tax expense is

as follows:

Income tax computed at statutory rate . . . . . . . . . . . . . . . . . . . . . . . . . . .
City and state income taxes, net of federal benefit . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$8,048,057
604,423
(10,999)

$6,887,483
430,117
(41,519)

$5,990,509
204,417
(57,881)

Income tax expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$8,641,481

$7,276,081

$6,137,045

2011

2010

2009

Deferred tax assets and liabilities consist of the following at December 31, 2011 and 2010:

Stock-based compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unrealized (gains) losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capital loss carry forward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets and liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$2,629,271
(441,092)
—
(104,777)

$ 1,462,094
(1,205,681)
677,770
(60,709)

Net deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$2,083,402

$

873,474

2011

2010

Note 8 Earnings Per Share

The following table sets forth the computation for basic and diluted earnings per share (“EPS”):

Basic and Diluted net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weighted average number of outstanding shares

Year Ended December 31,

2011

2010

2009

$14,352,968

$12,402,441

$11,373,943

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

2,951,751
2,951,751

2,766,741
2,767,895

2,582,998
2,587,751

Earnings per share

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

4.86

4.86

$

$

4.48

4.48

$

$

4.40

4.40

32

Note 9 Regulatory Requirements

BHIL, a wholly owned subsidiary of the Company and principal underwriter for mutual funds, is subject to
the U.S. Securities and Exchange Commission (“SEC”) uniform net capital rule, which requires the maintenance
of minimum net capital. BHIL’s net capital exceeded its minimum net capital requirement at December 31, 2011
and 2010. The net capital balances, minimum net capital requirements, and ratio of aggregate indebtedness to net
capital for BHIL are summarized below as of December 31, 2011 and 2010:

Year Ended December 31,

2011

2010

Net Capital
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum Net Capital Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratio of Aggregate Indebtedness to Net Capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$360,167
38,139
1.59 to 1

$ 86,107
50,440
8.79 to 1

Note 10 Commitments and Contingencies

The Company indemnifies its directors and certain of its officers and employees for certain liabilities that
might arise from their performance of their duties to the Company. Additionally, in the normal course of busi-
ness, the Company enters into agreements that contain a variety of representations and warranties and which
provide general indemnifications. Certain agreements do not contain any limits on the Company’s liability and
would involve future claims that may be made against the Company that have not yet occurred. Therefore, it is
not possible to estimate the Company’s potential liability under these indemnities. Further, the Company main-
tains insurance policies that may provide coverage against certain claims under these indemnities.

33

ITEM 9. Changes In and Disagreements With Accountants on Accounting and Financial Disclosures

None.

ITEM 9A. Controls and Procedures

Management, including the Chief Executive Officer and the Chief Financial Officer, has conducted an evalu-
ation of the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) or
15d-15(e) of the Exchange Act of 1934) as of the end of the period covered by this report (the “Evaluation
Date”). Based on such evaluation, the Chief Executive Officer and the Chief Financial Officer have concluded
that, as of the Evaluation Date, the Company’s disclosure controls and procedures are effective to ensure that the
information required to be disclosed by the Company in the reports that it files or submits under the Exchange
Act, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and
forms, and to ensure that the information required to be disclosed by the Company in the reports it files or sub-
mits under the Exchange Act is accumulated and communicated to the Company’s management, including the
Chief Executive Officer and Chief Financial Officer, or persons performing similar functions, as appropriate to
allow timely decisions regarding required disclosure.

There have been no changes in the Company’s internal control over financial reporting during the year
ended December 31, 2011 that have materially affected, or are reasonably likely to materially affect, the Compa-
ny’s internal control over financial reporting.

Management’s Annual Report on Internal Control Over Financial Reporting

Management of Diamond Hill Investment Group, Inc. (the “Company”) is responsible for establishing and
maintaining adequate internal control over financial reporting, as defined in Rule 13a-15(f) and 15d-15(f) of the
Exchange Act. The Company’s internal control over financial reporting is a process designed to provide reason-
able assurance regarding the reliability of financial reporting and the preparation of its consolidated financial
statements for external purposes in accordance with accounting principles generally accepted in the United States
of America.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect mis-
statements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that con-
trols may become inadequate because of changes in conditions, or that the degree of compliance with the policies
or procedures may deteriorate.

Under the supervision and with the participation of the Chief Executive Officer and the Chief Financial
Officer, management assessed the effectiveness of the Company’s internal control over financial reporting as of
December 31, 2011 based on criteria established in Internal Control — Integrated Framework issued by the
Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on this assessment,
management concluded that
the Company’s internal control over financial reporting was effective as of
December 31, 2011.

The Company’s independent registered public accounting firm, Plante & Moran, PLLC, has audited the
Company’s 2011 and 2010 consolidated financial statements included in this Annual Report on Form 10-K and
the Company’s internal control over financial reporting as of December 31, 2011, and has issued its Report of
Independent Registered Public Accounting Firm on Consolidated Financial Statements, which is included in this
Annual Report on Form 10-K.

ITEM 9B. Other Information

None.

34

PART III

ITEM 10. Directors, Executive Officers and Corporate Governance

Information required by this Item 10 is incorporated herein by reference from the Company’s definitive
proxy statement for its 2012 annual meeting of shareholders to be filed with the SEC pursuant to Regulation 14A
of the Exchange Act (the “2012 Proxy Statement”), under the captions: “Proposal 1 — Election of Directors”,
“Executive Officers and Compensation Information”, “Corporate Governance”, and “Section 16(a) Beneficial
Ownership Reporting Compliance”.

ITEM 11. Executive Compensation

Information required by this Item 11 is incorporated herein by reference from the Company’s 2012 Proxy
Statement under the captions: “Executive Officers and Compensation Information” and “Corporate Governance”.

ITEM 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder
Matters

The following table sets forth certain information concerning our equity compensation plans at

December 31, 2011:

Equity Compensation Plan Information

Plan category

Equity compensation plans approved by security
holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(a)

(b)

(c)

Number of securities to
be issued upon the
exercise of outstanding
options, warrants and
rights

Weighted-average
exercise price of
outstanding options,
warrants and rights

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

—

$—

493,1251

1 This amount relates to common shares that may be issued under our 2011 Equity and Cash Incentive Plan.

The other information required by this Item 12 is incorporated herein by reference from the Company’s
2012 Proxy Statement under the captions: “Security Ownership of Certain Beneficial Owners and Management”
and “Executive Officers and Compensation Information”.

ITEM 13. Certain Relationships and Related Transactions, and Director Independence

Information required by this Item 13 is incorporated herein by reference from the Company’s 2012 Proxy

Statement under the caption: “Corporate Governance”.

ITEM 14. Principal Accounting Fees and Services

Information required by this Item 14 is incorporated herein by reference from the Company’s 2012 Proxy

Statement under the caption: “Independent Registered Public Accounting Firm”.

35

PART IV
ITEM 15. Exhibits, Financial Statement Schedules
(a) (1) Financial Statements: See “Part II. Item 8, Financial Statements and Supplementary Data”.

(2) Financial Statement Schedules: All financial statement schedules for which provision is made in the
applicable accounting regulations of the SEC are omitted because they are not required or the required
information is included in the accompanying financial statements or notes thereto.

(3) Exhibits:

3.1 Amended and Restated Articles of Incorporation of the Company. (Incorporated by reference from

Exhibit 3(i) to the Current Report on Form 8-K filed with the SEC on May 7, 2002; File
No. 000-24498.)

3.2 Regulations of the Company. (Incorporated by reference from Exhibit 3(ii) to the Current Report

on Form 8-K filed with the SEC on May 7, 2002; File No. 000-24498.)

10.1 Amended and Restated Investment Management Agreement between Diamond Hill Capital

Management, Inc. and the Diamond Hill Funds dated as of November 17, 2011. (Incorporated by
reference from Exhibit d to Post-Effective Amendment Nos. 36 and 37 to Registration Statement
on Form N1-A (File Nos. 333-22075 and 811-08061) filed by Diamond Hill Funds on
February 29, 2012)

10.2 Amended and Restated Administrative and Transfer Agency Services Agreement dated as of

May 31, 2002, as amended November 17, 2011, between Diamond Hill Capital Management, Inc.
and the Diamond Hill Funds. (Incorporated by reference from Exhibit h(i) to Post-Effective
Amendment Nos. 36 and 37 to Registration Statement on Form N1-A (File Nos. 333-22075 and
811-08061) filed by Diamond Hill Funds on February 29, 2012)
2011 Equity and Cash Incentive Plan and Form of Restricted Stock Award Agreement referenced
therein. (Incorporated by reference from Exhibit 10.2 and 10.3 to Form 8-K filed with the SEC on
April 29, 2011; File No. 000-24498.)

10.3*

10.4* Amended and Restated Employment Agreement between the Company and Roderick H. Dillon, Jr.

dated March 22, 2011. (Incorporated by reference from Exhibit 10.1 to Form 8-K filed with the
SEC on March 24, 2011; File No. 000-24498.)

10.5* Amended and Restated 2005 Employee and Director Equity Incentive Plan. (Incorporated by

10.6*

reference from Exhibit 10.6 to Form 10-K filed with the SEC on March 14, 2008; File No. 000-
24498.)
2005 Employee and Director Equity Incentive Plan First Amendment dated November 2, 2010 and
Form of Restricted Stock Agreement reference therein. (Incorporated by reference from
Exhibit 10.4 to Form 10-K filed with the SEC on February 25, 2011; File No. 000-24498.)
14.1 Amended Code of Business Conduct and Ethics. (Incorporated by reference from Exhibit 14.1 to

Form 10-K filed with the SEC on March 13, 2009; File No. 000-24498.)
Subsidiaries of the Company. (Filed herewith)

21.1
23.1 Consent of Independent Registered Public Accounting Firm, Plante & Moran, PLLC. (Filed

herewith)

31.1 Certification of Chief Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a). (Filed

herewith)

31.2 Certification of Chief Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a). (Filed

herewith)
Section 1350 Certifications. (Furnished herewith)

32.1

101.ins XBRL Instance Document.
101.xsd XBRL Taxonomy Extension Schema Document.
101.cal XBRL Taxonomy Extension Calculation Linkbase Document.
101.def XBRL Taxonomy Extension Definition Linkbase Document.
101.lab XBRL Taxonomy Extension Label Linkbase Document.
101.pre XBRL Taxonomy Extension Presentation Linkbase Document.

* Denotes management contract or compensatory plan or arrangement.
(b) Exhibits: Reference is made to Item 15(a)(3) above.
(c) Financial Statement Schedules: None required.

36

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant

has caused this report to be signed on its behalf by the undersigned, thereunto duly authorized:

DIAMOND HILL INVESTMENT GROUP, INC.
By: /S/ R. H. Dillon

R. H. Dillon, President, Chief Executive
Officer and a Director

March 9, 2012

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by

the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature

/S/ R. H. Dillon

R. H. Dillon

/S/ James F. Laird
James F. Laird

/S/ Gary R. Young

Gary R. Young

/S/ Lawrence E. Baumgartner

Lawrence E. Baumgartner

/S/ David P. Lauer

David P. Lauer

/S/ Peter J. Moran III

Peter J. Moran III

/S/ Donald B. Shackelford

Donald B. Shackelford

/S/ Frances A. Skinner

Frances A. Skinner

Title

Date

President, Chief Executive Officer,
and a Director

March 9, 2012

Chief Financial Officer, Treasurer,
Secretary, and a Director

March 9, 2012

Controller

March 9, 2012

March 9, 2012

March 9, 2012

March 9, 2012

March 9, 2012

March 9, 2012

Director

Director

Director

Director

Director

37

INVESTOR
INFORMATION

CORPORATE HEADQUARTERS
Diamond Hill Investment Group, Inc.
325 John H. McConnell Blvd., Suite 200
Columbus, OH 43215
614-255-3341
info@diamond-hill.com
www.diamond-hill.com

INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS
Plante & Moran, PLLC
Columbus, OH

FORM 10-K AND OTHER FINANCIAL REPORTS
The Company’s Annual Report on Form 10-K, as

filed with the U.S. Securities and Exchange Commission,
which includes the complete financial statements of the
company, has been included with the proxy materials mailed
to each shareholder.

Additional copies are available without charge by contact-

ing the Company at:

STOCK LISTING
Diamond Hill Investment Group, Inc. is listed
on the NASDAQ Global Select Market
Ticker Symbol: DHIL

325 John H. McConnell Blvd., Suite 200
Columbus, OH 43215
614.255.3333
info@diamond-hill.com

SHAREHOLDER INFORMATION
The Transfer Agent for Diamond Hill is
Continental Stock Transfer & Trust Company.
Shareholders who wish to transfer their stock or
change the name in which the shares are
registered should contact:

Continental Stock Transfer & Trust Co.
17 Battery Place
New York, NY 10004
212.509.4000

LEGAL COUNSEL
Vorys, Sater, Seymour and Pease LLP
Columbus, OH

WWW.diamond-hill.com

Diamond Hill Investment Group, Inc.
325 John H. McConnell Blvd., Suite 200
Columbus, OH 43215
614.255.3333