Robert Arnott

Research Affiliates; fundamental indexing, value re-anchoring

Founder and chairman of Research Affiliates, an asset management firm overseeing strategies tied to hundreds of billions in assets. Arnott developed the RAFI (Research Affiliates Fundamental Index) methodology, which weights securities by economic footprint—sales, cash flow, dividends, book value—rather than price. He is a prolific researcher on value re-anchoring, factor investing, and the hidden costs of passive cap-weighted benchmarks.