UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _______________________ FORM 8-K CURRENT REPORT _______________________ PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 3, 2010 Diamond Hill Investment Group, Inc. ------------------------------------------------------------------------------ (Exact Name of Registrant as Specified in its Charter) Ohio ------------------------------------------------------------------------------ (State or Other Jurisdiction of Incorporation) 000-24498 65-0190407 ------------------------------------------------------------------------------ (Commission File Number) (I.R.S. Employer Identification No.) 325 John H. McConnell Blvd, Suite 200, Columbus, Ohio 43215 ------------------------------------------------------------------------------ (Address of Principal Executive Offices) (Zip Code) Registrant's Telephone Number, Including Area Code: (614) 255-3333 ------------------------------------------------------------------------------ (Former Name or Former Address, if Changed Since Last Report) Item 8.01. Other Events ---------- -------------------------------------------- As of April 30, 2010, preliminary assets under management totaled $7.009 billion. Following is a summary as of April 30, 2010 (in millions): Separate Accounts $ 2,753 Mutual Funds 4,044 Private Investment Funds 212 -------- Total $ 7,009 Investment Strategy ------------------- Small Cap $ 777 Small-Mid Cap 174 Large Cap 3,102 Select 430 Long-Short 2,353 Strategic and Fixed Income 173 -------- Total $ 7,009 SIGNATURE --------- Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. DIAMOND HILL INVESTMENT GROUP, INC. Date: May 3, 2010 By: /s/ James F. Laird ------------------------------- James F. Laird, Chief Financial Officer and Secretary