The Oakmark Funds are advised by Harris Associates L.P. an autonomous subsidiary of Natixis Investment Managers, L.P.
Learn more about the principles and philosophy behind our funds at HarrisAssoc.com.
Partner and Portfolio Manager
Robert Bierig has been a manager of the Oakmark Fund and the Oakmark Select Fund since 2022 and the Oakmark U.S. Large Cap ETF since 2024. He is also a portfolio manager and U.S. investment analyst at Harris | Oakmark as well as a vice president of the Oakmark Funds.
He joined Harris | Oakmark in 2012 after serving as managing principal at Amethyst Capital, managing director at GEICO Investments, investor at Frist Capital, investment analyst at ESL Investments and investment banking analyst at Morgan Stanley.
Mr. Bierig earned a B.A. in economics from Duke University (2000).
Insights
January 21, 2026
Robert Bierig highlights how recent market strength has been driven by a small group of high-momentum stocks, creating unique challenges - and opportunities -...
Insights
October 15, 2025
Today’s S&P 500 is increasingly concentrated. Robert Bierig highlights how the Russell 1000 Value offers diversification—and why value stocks may be a compelling option...
At Oakmark, we don’t have an opinion about how equities will perform this year, if a recession will start or if the political parties will produce pro-growth candidates during the next election cycle. As long-term investors, we don’t think it matters.
Commentary
Oakmark Fund: Second Quarter 2026
June 30, 2026
Quarterly update on performance, key contributors and detractors, and portfolio positioning.
Oakmark Select Fund: Second Quarter 2026
June 30, 2026
Quarterly update on performance, key contributors and detractors, and portfolio positioning.
Oakmark Fund: First Quarter 2026
March 31, 2026
Quarterly update on performance, key contributors and detractors, and portfolio positioning.