Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 Form 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 Commission file number 000-24498 DIAMOND HILL INVESTMENT GROUP, INC. (Exact name of registrant as specified in its charter) | --- | |--------------------------------------------------------------------------------------------------------------------------------| | | | Ohio | | ...