Rob Arnott

Rob Arnott is an investor and researcher who founded Research Affiliates in 2002 and is credited with pioneering fundamental indexing, an early form of the systematic strategies now called smart beta. He previously chaired First Quadrant, was a global equity strategist at Salomon Brothers and edited the Financial Analysts Journal from 2002 to 2006. In 2026 he became chairman of Syzygy Asset Management, relaunched after Research Affiliates sold its index business to TMX Group.