About
Aaron Monroe, CFA, is a Portfolio Manager at Diamond Hill Capital Management, where he co-manages the Small Cap strategy. He has been with Diamond Hill since 2007, initially serving as an equity trader before transitioning to portfolio management. Monroe is based in the United States and works closely with clients to deliver long-term outperformance through fundamental equity research.
His primary focus is on U.S. small-cap equities, analyzing companies within the Russell 2000 Index and seeking durable, profitable businesses with strong management alignment. Monroe employs a disciplined, repeatable investment process with emphasis on both qualitative attributes and the intrinsic value of portfolio holdings, investing across a variety of sectors while targeting companies with positive long-term opportunities.
Before joining Diamond Hill, Monroe held roles as a consulting group analyst. He holds the Chartered Financial Analyst (CFA) designation, reflecting his broad expertise in equity analysis, portfolio management, and fundamental research. Through his leadership in small-cap strategies, Monroe has contributed to delivering strong client outcomes and maintaining the firm's reputation for rigorous, business-first investment approaches.
Career History
| Organization | Role | Date Range | Details | 
|---|---|---|---|
| Diamond Hill | Portfolio Manager | Feb 2019 to Present | Portfolio Manager of the Diamond Hill Small Cap Strategy | 
| Diamond Hill | Consumer Team Sector Leader | Dec 2017 to Dec 2020 | Manager of the Consumer Team | 
| Diamond Hill Capital Management | Portfolio Manager and Research Analyst | Dec 2008 to Dec 2020 | Portfolio Management Focus of Consumer Businesses with Research Specialization in Restaurants, Gaming, Lodging and Leisure. | 
| Diamond Hill | Research Analyst | Dec 2008 to Dec 2020 | Research Analyst for Consumer Team | 
| Diamond Hill | Equity Trader | Jun 2007 to Dec 2008 | Equity trade execution for the Diamond Hill Strategies | 
| Smith Barney | Consulting Group Analyst | Jan 2006 to Jan 2007 | — | 
| Duff & Phelps | Associate | Jan 2005 to Jan 2005 | — | 
Education
The Ohio State University
Bachelor of Business Administration (B.B.A.), Finance, Accounting and Economics
2000 — 2004
Others at Diamond Hill Capital Management Inc. (23)
| Name | Role | Location | 
|---|---|---|
| Analyst | New York, NY , United States | |
| AArthur Cheng | Portfolio Manager | Los Angeles, CA , United States | 
| Research Analyst | Columbus, OH , United States | |
| DDana Wainer | Accounting and Business Analyst | Columbus, OH , United States | 
| Managing Director - Information Technology | Columbus, OH , United States | |
| KKrishna Mohanraj | Portfolio Manager | Groveport, OH , United States | 
| KKristen Christman | Senior Product Analyst | Columbus, OH , United States | 
|  | Portfolio Manager | Columbus, OH , United States | 
| PPatrick Trencansky | Senior Performance Analyst | Jacksonville, FL , United States | 
| Portfolio Manager | Columbus, OH , United States |