<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>ex991-0426.txt
<DESCRIPTION>PRESS RELEASE
<TEXT>
                                      ^
                                 Diamond Hill
                                 ------------
                                 Investments


FOR IMMEDIATE RELEASE:
                                     Investor Contact:
                                     James F. Laird - Chief Financial Officer
                                     614-255-3353 (jlaird@diamond-hill.com)

DIAMOND HILL INVESTMENT GROUP, INC. REPORTS RESULTS FOR FIRST QUARTER 2013

	Columbus, Ohio - April 26, 2013 - Diamond Hill Investment Group, Inc.
(the "Company") (NASDAQ:DHIL) today reported unaudited results for the quarter
ended March 31, 2013.  The Company plans to file its Form 10-Q on Friday,
May 3, 2013 and we urge investors to read and consider the information in that
filing.  Whenever possible, we will post our report on a Friday afternoon so
that investors have a maximum amount of time to digest the information contained
therein.

<TABLE>
<CAPTION>
                                          Three Months Ended
                                               March 31,
                                          2013          2012            Change
<S>                                     <C>           <C>                 <C>
Revenue		                        $18,356,174   $16,614,220         10%
    Net operating income                  6,627,615     6,020,540         10%
    Operating margin                            36%           36%
Investment income                         1,824,659     1,271,731
Net income                                5,330,733     4,611,353         16%
Earnings per share                            $1.67         $1.52         10%
</TABLE>

<TABLE>
<CAPTION>
                                                            As Of
                                     March 31, 2013    December 31, 2012    March 31, 2012
<S>                                     <C>               <C>                  <C>
Assets under management (millions)        $10,574            $9,429               $9,360
Book value per share <F1>                  $10.23             $6.86                $9.42
Total outstanding shares                3,242,674         3,169,987            3,096,178

<FN>
<F1>
An $8 per share special dividend was paid in December 2012.
</FN>
</TABLE>

<TABLE>
Change in Assets Under Management
<CAPTION>
                                           For the Three Months Ended March 31,
(in millions)                                        2013        2012
<S>                                                  <C>         <C>
AUM at beginning of the period		             $ 9,429     $ 8,671
Net cash inflows (outflows)
     proprietary funds                                   142          70
     sub-advised funds                                   (37)        (60)
     institutional accounts                              (33)       (113)
                                                          72        (103)
Net market appreciation and income                     1,073         792
Increase during the period                             1,145         689
AUM at end of the period                             $10,574 	 $ 9,360
</TABLE>


About Diamond Hill:
Diamond Hill is an independent investment management firm with significant
employee ownership and $10.6 billion in assets under management as of
March 31, 2013.  The firm provides investment management services to
institutions and individuals through mutual funds, institutional separate
accounts, and private investment funds.  Diamond Hill's entire investment team
shares the same intrinsic value investment philosophy focused on absolute
returns, and the firm's interests are firmly aligned with its clients through
significant investment in its strategies.  For more information on
Diamond Hill, visit www.diamond-hill.com.


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 Diamond Hill Investment Group, Inc. (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 income and the
tax impact related to the investment income. The Company believes that "net
operating income after tax" provides a good representation of the Company's
operating performance, as it excludes the impact of investment income on
financial results. The amount of the investment portfolio 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.

<TABLE>
<CAPTION>
                                                Three Months Ended March 31,
(in thousands, except per share data)                 2013       2012
<S>                                                 <C>        <C>
Net operating income, GAAP basis                    $  6,628   $  6,021
Non-GAAP adjustments:
Tax provision excluding impact of investment income    2,448      2,213
Net operating income after tax, non-GAAP basis      $  4,180      3,808

Net operating income after tax per share,
non-GAAP basis                                      $   1.31   $   1.26
</TABLE>

The tax provision excluding impact of investment income is calculated by
applying the tax rate from the income statement to net operating income.

The Company's management does not promote that investors consider the above
non-GAAP financial measures alone, or as a substitute for, financial
information prepared in accordance with GAAP.

                 ----------------------------------------
Throughout this press release, 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, technology developments, 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.


325 John H. McConnell Blvd, Suite 200, Columbus, Ohio 43215
614-255-3333 info@diamond-hill.com





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