Rex Sinquefield

Rex Sinquefield
Born
Rex Andrew Sinquefield

September 7, 1944 (1944-09-07) (age 81)
Alma materSaint Louis University
University of Chicago
OccupationPresident of Show-Me Institute
Political partyRepublican

Rex Andrew Sinquefield (/ˈsɪŋkfld/; born September 7, 1944) is an American businessman, investor, and philanthropist who has been called an 'index-fund pioneer' for contributing to the early development and popularization of passively managed index funds among retail investors. Sinquefield was also a co-founder of Dimensional Fund Advisors. A member of the Republican Party, he is active in Missouri politics.