Mr. Arnott is the founder and chairman of Research Affiliates, a subadvisor to PIMCO. In 2002, he established Research Affiliates as a research-intensive asset management firm that focuses on innovative asset allocation and alternative indexation products. He previously served as chairman of First Quadrant, as president of TSA Capital Management (now part of Analytic Investors), and as vice president at The Boston Company. He also was global equity strategist at Salomon Brothers. He has published more than 100 articles in journals.

Chris Brightman, Chief Executive Officer, Research Affiliates, since July 2021, and Chief Investment Officer since April 2014. Previously at Research Affiliates, Mr. Brightman served as a Managing Director and Head of Investment Management. Prior to joining Research Affiliates in 2010, Mr. Brightman was chief executive officer of the University of Virginia Investment Management Company.