-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 QDN1M2zayEd0bpItVgQi3SfQCDKx0HB0uSv0BzmGQxlBkyZWH7XdNahfgyG2ppvA
 XelPO16JAipSFciXSxm7Qg==

<SEC-DOCUMENT>0000950152-08-010487.txt : 20081219
<SEC-HEADER>0000950152-08-010487.hdr.sgml : 20081219
<ACCEPTANCE-DATETIME>20081219135857
ACCESSION NUMBER:		0000950152-08-010487
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20081219
DATE AS OF CHANGE:		20081219
EFFECTIVENESS DATE:		20081219

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DIAMOND HILL INVESTMENT GROUP INC
		CENTRAL INDEX KEY:			0000909108
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		IRS NUMBER:				650190407
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-156331
		FILM NUMBER:		081260287

	BUSINESS ADDRESS:	
		STREET 1:		325 JOHN H MCCONNELL BLVD
		STREET 2:		SUITE 200
		CITY:			COLUMBUS
		STATE:			OH
		ZIP:			43215
		BUSINESS PHONE:		6142553333

	MAIL ADDRESS:	
		STREET 1:		325 JOHN H MCCONNELL BLVD
		STREET 2:		SUITE 200
		CITY:			COLUMBUS
		STATE:			OH
		ZIP:			43215

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	BANC STOCK GROUP INC
		DATE OF NAME CHANGE:	19971016

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HEARTLAND GROUP OF COMPANIES INC
		DATE OF NAME CHANGE:	19940301

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HEARTLAND FINANCIAL GROUP INC
		DATE OF NAME CHANGE:	19930714
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>l34915asv8.htm
<DESCRIPTION>FORM S-8
<TEXT>
<HTML>
<HEAD>
<TITLE>FORM S-8</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->
<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>As filed with the Securities and Exchange Commission on December&nbsp;19, 2008</B>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Registration No.&nbsp;333-</B><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U>
</DIV><br>


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>






<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>Form&nbsp;S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>Registration Statement<BR>
Under the Securities Act of 1933</B>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>DIAMOND HILL INVESTMENT GROUP, INC.</B>
</DIV>

<DIV align="center" style="font-size: 10pt"><B>(Exact name of Registrant as specified in its charter)</B></DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="31%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="31%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="31%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Ohio</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>325 John H. McConnell Blvd., Ste 200</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>65-0190407</B></TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><B>(State of incorporation)</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>Columbus, Ohio 43215</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>(I.R.S. Employer Identification No.)</B></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>(Address, including zip code, of Registrant&#146;s principal executive offices)</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>2005 EMPLOYEE AND DIRECTOR EQUITY INCENTIVE PLAN<BR>
(Full title of the Plan)</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>R. H. Dillon<BR>
Chief Executive Officer<BR>
Diamond Hill Investment Group, Inc.<BR>
325 John H. McConnell Blvd., Suite&nbsp;200<BR>
Columbus, Ohio 43215<BR>
(614)&nbsp;255-3333<BR>
(Name, address and telephone number, including area code, of agent for service)</B></DIV>




<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 0%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 &#147;large
accelerated filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148; in Rule&nbsp;12b-2 of the
Exchange Act. (Check one):
</DIV>



<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom" style="font-size: 1px">
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="22%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="left" valign="top">Large accelerated filer <FONT face="Wingdings">&#111;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Accelerated filer
<FONT face="Wingdings">&#254;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Non-accelerated filer <FONT face="Wingdings">&#111;</FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap>Smaller reporting company <FONT face="Wingdings">&#111;</FONT></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top" nowrap>(Do not check if a smaller reporting company)</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>
<DIV align="center" style="font-size: 10pt; margin-top: 12pt">CALCULATION OF REGISTRATION FEE</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom" style="font-size: 1px">
    <TD width="1%">&nbsp;</TD>
    <TD width="54%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Proposed Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Proposed Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Amount of</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>Title of Securities</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Amount to be</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Offering Price</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Aggregate Offering</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Registration</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>to be Registered</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Registered (1)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Per Share(2)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Price</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Fee</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock, no par value issuable under the
2005 Employee and Director Equity Incentive
Plan</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">279,716</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">59.85</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">16,741,002.60</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">657.92</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000"><DIV style="margin-left:30px; text-indent:-15px">TOTAL</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 0px solid #000000">279,716 </TD>
    <TD nowrap style="border-top: 0px solid #000000"><B>(3)</B></TD>
    <TD style="border-right: 2px solid #000000; border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 0px solid #000000">$</TD>
    <TD align="right" style="border-top: 0px solid #000000">59.85</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 0px solid #000000">$</TD>
    <TD align="right" style="border-top: 0px solid #000000">16,741,002.60</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 0px solid #000000">$</TD>
    <TD align="right" style="border-top: 0px solid #000000">000.00</TD>
    <TD nowrap style="border-top: 0px solid #000000"><B>(4)</B></TD>
    <TD width="1%" style="border-top: 0px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>This Registration Statement shall also cover any additional shares of Common Stock which
become issuable under the Plan being registered pursuant to this Registration Statement by
reason of any stock dividend, stock split, recapitalization or any other similar transaction
effected without the receipt of consideration which results in an increase in the number of
the Registrant&#146;s outstanding shares of Common Stock.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Estimated in accordance with Rule 457(h) solely for the purpose of calculating the filing fee
on the basis of $59.85 per share, which represents the average of the high and the low prices
of the Registrant&#146;s Common Stock reported on the NASDAQ Global Markets on December&nbsp;15, 2008.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Consists of additional shares authorized under the evergreen provision of the 2005 Employee
and Director Equity Incentive Plan (the &#147;Plan&#148;). Pursuant to such provision, on the last day
of the Fiscal Year beginning in 2005, the number of shares authorized for issuance under the
Plan is automatically increased by a number equal to the lesser of: (A)&nbsp;100,000 Shares, (B)&nbsp;5%
of the Company&#146;s total outstanding Shares on such date, or (C)&nbsp;a lesser amount determined by
the Board of Directors of the Company.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(4)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>On August&nbsp;12, 2005, the Registrant filed with the Securities and Exchange Commission under
the Securities Act of 1933, as amended, a Registration Statement on Form S-8 (File No.
333-127473) (the &#147;Registration Statement&#148;) registering 500,000 shares of its Common Stock, no
par value, for issuance under its Plan. On May&nbsp;12, 2006, the Registrant filed Post-Effective
Amendment No.&nbsp;1 to the Registrant&#146;s Registration Statement registering 87,795 additional
 shares of its Common Stock, no par value, for issuance under the Plan (the &#147;S-8 POS 1&#148;). A
filing fee of $396.62 was paid in connection with $3,706,705 of Common Stock that was not sold
under the S-8 POS 1. On February&nbsp;13, 2007, the Registrant filed Post-Effective Amendment No 2
to the Registrant&#146;s Registration Statement registering 91,921 additional shares of its Common
Stock, no par value, for issuance under the Plan (the &#147;S-8 POS 2&#148;). A filing fee of $1,094.20
was paid in connection with $10,226,211 of Common Stock that was not sold under the S-8 POS 2.
Pursuant to Rule 457(p) under the Securities Act, the $1490.82 aggregate filing fees for such
unsold Common Stock under S-8 POS 1 and S-8 POS 2 is entitled to be used to offset future
filing fees. The entire $657.92 filing fee due in connection with this Registration Statement
is being paid through offset against the $1490.82. The unused $832.90 remaining after the
filing of this Registration Statement may be used to offset future registration fees in
accordance with Rule&nbsp;457(p).</TD>
</TR>

</TABLE>
</DIV>

<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>







<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXPLANATORY NOTE</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This Registration Statement is being filed for the purpose of registering an additional
279,716 shares of Common Stock of Diamond Hill Investment Group, Inc. (&#147;the Company&#148; or
&#147;Registrant&#148;) authorized for issuance under its 2005 Employee and Director Equity Incentive Plan
(the &#147;Plan&#148;). These additional shares have become authorized for issuance as a result of the
operation of the &#147;evergreen&#148; provision contained in the Plan. This provision provides for annual
increases in the shares authorized for issuance under the Plan pursuant to a specified formula.
Following the registration of these additional shares, the Company will have registered an
aggregate of 779,716 shares to be issued upon exercise of all outstanding options to purchase
Common Stock granted under the Plan.
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>

</DIV>
<!-- link2 "Item&nbsp;3. Incorporation of Documents By Reference" -->
<DIV align="left"><A NAME="000"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents By Reference</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following documents filed by the Company with the Commission are incorporated by reference
into this Registration Statement:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Annual Report on Form 10-K for the fiscal year ended December
31, 2007, filed with the Commission on March&nbsp;14, 2008.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Quarterly Report on Form 10-Q for the quarter ended March&nbsp;31,
2008, filed with the Commission on May&nbsp;9, 2008.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(c)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Quarterly Report on Form 10-Q for the quarter ended June&nbsp;30,
2008, filed with the Commission on August&nbsp;8, 2008.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(d)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Quarterly Report on Form 10-Q for the quarter ended September&nbsp;30,
2008, filed with the Commission on November&nbsp;7, 2008.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(e)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>All other reports filed pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act of 1934, as amended, (the &#147;Act&#148;), since December&nbsp;31, 2007, except for
information furnished under Current Reports on Form 8-K, which is not deemed filed and
not incorporated herein by reference.</TD>
</TR>

</TABLE>
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>


<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In addition, any document filed by the Company with the Commission pursuant to Sections&nbsp;13(a),
13(c), 14 or 15(d) of the Exchange Act subsequent to the date hereof, but prior to the filing of a
post-effective amendment to this Registration Statement which indicates that all shares of the
Company&#146;s Common Stock registered hereunder have been sold or that deregisters all such shares of
Common Stock then remaining unsold, will be deemed to be incorporated by reference herein and to be
a part hereof from the date of filing of such documents. Any statement contained herein or in a
document, all or a portion of which is incorporated or deemed to be incorporated by reference
herein shall be deemed to be modified or superseded for purposes of this Registration Statement to
the extent that a statement contained herein or in any other subsequently filed document which also
is or is deemed to be incorporated by reference herein modifies or supersedes such statement. Any
such statement so modified or superseded shall not be deemed, except as so modified or amended, to
constitute a part of this Registration Statement.
</DIV>
<!-- link2 "Item&nbsp;8. Exhibits" -->

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. </B><U><B>Exhibits</B></U><B>.</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="88%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" colspan="3"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">4.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Diamond Hill Investment Group, Inc. 2005 Employee and Director
Equity Incentive Plan*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">5.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Opinion of Counsel as to legality of securities being registered.</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of Independent Registered Public Accounting Firm.</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of Counsel (contained in Exhibit&nbsp;5.1).</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">24.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Power of Attorney (included on signature page hereto).</DIV></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">*</TD>
    <TD>&nbsp;</TD>
    <TD>Previously filed and incorporated by reference from the Company&#146;s Registration Statement filed
August&nbsp;12, 2005 (File No.&nbsp;333-127473), with the Securities and Exchange Commission under the
Securities Act of 1933, as amended.</TD>
</TR>

</TABLE>


<!-- link1 "SIGNATURES" -->

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Columbus, State of Ohio, on December&nbsp;19, 2008.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left"><B>DIAMOND HILL INVESTMENT GROUP, INC.</B><BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ R. H. Dillon
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left" nowrap>R. H. Dillon, President and Chief Executive Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">(Principal Executive Officer)&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">             /s/ James F. Laird, Jr.
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">James F. Laird, Jr., Chief Financial Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">(Principal Financial and Accounting Officer)&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>POWER OF ATTORNEY</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Each person whose signature appears below hereby constitutes and appoints each of R. H. Dillon
and James F. Laird, Jr., his or her true and lawful attorney-in-fact and agent, with full power of
substitution and resubstitution, for such person and in his or her name, place and stead, in any
and all capacities, in connection with this Registration Statement, including to sign and file in
the name and on behalf of the undersigned as director or officer of the Registrant this
Registration Statement, with all exhibits hereto, and other documents in connection herewith, with
the Securities and Exchange Commission and any applicable securities exchange or securities
self-regulatory body, granting unto said attorney-in-fact and agent, full power and authority to do
and perform each and every act and things requisite or necessary to be done in and about the
premises, as fully to all intents and purposes as he or she might or could do in person, hereby
ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has
been signed by the following persons on December&nbsp;19, 2008 in the capacities indicated:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="34%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="61%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Signature</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Title</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ R. H. Dillon
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
(R. H. Dillon)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director, President and Chief Executive Officer</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ David P. Lauer
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
(David P. Lauer)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Dr.&nbsp;James G. Mathias
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
(Dr.&nbsp;James G. Mathias)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Diane D. Reynolds
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
(Diane D. Reynolds)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ David R. Meuse
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
(David R. Meuse)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Donald B. Shackelford
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
(Donald B. Shackelford)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>l34915aexv5w1.htm
<DESCRIPTION>EX-5.1
<TEXT>
<HTML>
<HEAD>
<TITLE>EX-5.1</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><U><B>EXHIBIT 5.1</B></U>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt">December&nbsp;19, 2008
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Diamond Hill Investment Group, Inc.<BR>
325 John H. McConnell Blvd., Suite&nbsp;200<BR>
Columbus, Ohio 43215

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Re: Registration Statement on Form&nbsp;S-8</B>
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Ladies and Gentlemen:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have examined the Registration Statement on Form S-8 to be filed by you with the Securities
and Exchange Commission on or about December&nbsp;19, 2008 (the &#147;Registration Statement&#148;), under the
Securities Act of 1933, as amended, in connection with the issuance of 100,000 additional shares
(the &#147;Shares&#148;) of common stock, no par value, upon exercise of options granted under the 2005
Employee and Director Equity Incentive Plan (the &#147;Plan&#148;). As your legal counsel, we have examined
the proceedings taken and are familiar with the proceedings proposed to be taken by you in
connection with the proposed sale and issuance of the Shares pursuant to the Plan.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;It is our opinion that, when issued and sold in the manner referred to in the Plan, the Shares
will be legally and validly issued, fully paid and nonassessable.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We consent to the use of this opinion as an exhibit to the Registration Statement and further
consent to the use of our name wherever appearing in the Registration Statement.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This opinion constitutes our professional opinion as to certain legal consequences of, and the
applicability of certain laws to, the matters specifically referred to herein. It is not, however,
a guaranty and should not be construed as such. The law covered by the opinions expressed herein is
limited to the law of the State of Ohio, as of the date of this letter. This opinion is rendered as
of the date hereof, and we undertake no, and hereby disclaim any, obligation to advise you of any
changes in, or new developments that might affect, any matters or opinions set forth herein.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">Very truly yours,

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">SCHOTTENSTEIN, ZOX &#038; DUNN CO., LPA

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">/s/ Schottenstein, Zox &#038; Dunn Co., LPA

</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>l34915aexv23w1.htm
<DESCRIPTION>EX-23.1
<TEXT>
<HTML>
<HEAD>
<TITLE>EX-23.1</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><U><B>EXHIBIT 23.1</B></U>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CONSENT OF PLANTE &#038; MORAN, PLLC, INDEPENDENT REGISTERED<BR>
PUBLIC ACCOUNTING FIRM</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">We consent to the incorporation by reference in the Registration Statement on Form S-8 pertaining
to the Diamond Hill Investment Group, Inc. 2005 Employee and Director Equity Incentive Plan of our
report dated March&nbsp;7, 2008, regarding the financial statements of Diamond Hill Investment Group,
Inc. which appear in Diamond Hill Investment Group, Inc.&#146;s Annual Report on Form 10-K for the
fiscal year ended December&nbsp;31, 2007, filed with the Securities and Exchange Commission on March&nbsp;14,
2008.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">December&nbsp;19, 2008<BR>
Columbus, Ohio
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">PLANTE &#038; MORAN, PLLC

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">/s/ Plante &#038; Moran, PLLC

</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>



</BODY>
</HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
