Wei Li, Ph.D., CFA, Senior Portfolio Manager at Charles Schwab Investment Management Inc. Prior to joining CSIM in 2012, Ms. Li spent more than ten years at Barclays Global Investors (now known as BlackRock, Inc.), where she held a number of positions. From 2001 to 2009, she worked in various roles in the Global Advanced Active group, including portfolio management and quantitative research for both U.S. and international equity markets. After 2009, she worked in the defined contribution research and product development area for almost two years.

Iain Clayton, CFA, FRM, Senior Portfolio Manager, joined Charles Schwab Investment Management Inc in 2013, Mr. Clayton spent more than five years at SSI Investment Management, where he was a portfolio manager and director of quantitative research. In these roles, Mr. Clayton co-managed multiple investment strategies and developed quantitative models and valuation approaches. From 2004 to 2008, he worked as a portfolio manager and director at RCM Capital Management (now known as Allianz Global Investors) and helped manage various equity portfolios and developed fundamental-based stock selection models. Prior to that, he was a vice president at Eureka Investment Advisors for almost three years and also served as a senior quantitative analyst/assistant portfolio manager. He has also worked as a quantitative research analyst at RCM Capital Management.