Value investing redefined

The Oakmark family of mutual funds is an extension of Harris Associates’ value-focused approach to investing. For more about our selection of funds, visit

The Oakmark Funds

111 South Wacker Drive, Suite 4600
Chicago, Illinois 60606
1-800-OAKMARK (625-6275)

Jason Siegendorf portrait

Jason S. Siegendorf

Head of Trading Analytics

  • B.S., Carnegie Mellon University, 1998
  • M.S., University of Chicago, 2007
  • Manager of Trading Technology at Harris Associates, 2012-16; Senior Analyst at DASH Financial, 2011-12; Capital Markets Consultant at Deloitte, 2010-11; Trader and Software Developer at Cornerstone Trading Group, 2000-10; Trading Floor Clerk with Flash Trading, 1999-2000
  • 24 years of investment experience
  • Joined Harris Associates in 2012
See all team members

We do value investing differently

At Harris Associates, 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.