About
Brown McCullough is Portfolio Manager and Director at Ranger Investment Management, an employee-owned boutique investment firm based in Dallas that specializes in small- and micro-cap U.S. growth strategies. He leads portfolio management for the firm’s small- and micro-cap equities, including the Ranger Small Cap Fund (RFISX) and Ranger Micro Cap Fund (RFIMX), and sits on Ranger’s general partnership committee. His expertise is primarily in the technology sector, where he conducts fundamental research and investment selection for the firm’s growth-focused portfolios.
Prior to joining Ranger Investments in 2015, McCullough was a Senior Analyst at Cortex Capital Partners and Kleinheinz Capital Partners, with coverage responsibilities across the technology, media, and telecom sectors. He also held analyst roles at EMS Capital, North Sound Capital Management, and Montgomery Securities, where he focused on lodging and leisure industries, and was a Senior Financial Analyst and assistant to the CFO at Yahoo. This career trajectory reflects McCullough’s deep experience across public market investing and sector-focused research within U.S. and global equities.
McCullough holds an MBA from the Stanford University Graduate School of Business and a BA in Religious Studies from the University of Virginia. Known for his rigorous analytical approach and sector expertise in technology, he has contributed meaningfully to the firm’s investment performance and strategic direction. As a key decision maker, he is recognized for driving results in small-cap growth investing and for his leadership as Ranger Investment Management achieved multi-year top industry designations for its strategies.
Career History
| Organization | Role | Date Range | Details |
|---|---|---|---|
| Ranger Investment Management | Portfolio Manager | Feb 2023 to Present | — |
| Cortex Capital | Analyst | Jan 2013 to Present | — |
| Kleinheinz Capital Partners | Analyst | Jan 2011 to Present | — |
| Ranger Investments Inc | Sector Manager | Feb 2015 to Mar 2023 | — |
| EMS Capital | Investment Analyst | Jan 2007 to Dec 2011 | — |
| North Sound Capital | Managing Director | Jan 2003 to Jan 2006 | — |
| Yahoo! Inc. | Sr Analyst | Jan 2001 to Jan 2003 | — |
| Montgomery Securities | Investment Banking Analyst | Jan 1998 to Jan 2000 | — |
Education
Stanford University Graduate School of Business
MBA
2002 — 2004
University of Virginia
1994 — 1998
Skills & Expertise
Others at Ranger Investment Management, L.P. (5)
| Name | Role | Location |
|---|---|---|
K Kevin Zhu | Senior Analyst | Dallas, TX , United States |
| President and Portfolio Manager | Dallas, TX , United States | |
| Head Trader, Partner | Dallas, TX , United States | |
C Conrad Doenges | Chief Investment Officer and Portfolio Manager | Dallas, TX , United States |
D Devin Holland | Senior Analyst | TX , United States |