John Ameriks

Principal and Head of Quantitative Equity
The Vanguard Group

John Ameriks is a principal and head of Vanguard Quantitative Equity Group. His team manages or co-manages Vanguard active stock funds using quantitative methods.

He previously served as head of investment counseling and research, developing the firm’s advice methodology and conducting investment research. His published research includes articles in the American Economic Review, the Quarterly Journal of Economics, and the Journal of Finance. He is co-editor, with Olivia Mitchell of Wharton, of Recalibrating Retirement Spending and Saving. Ameriks’ current research interests include quantitative equity investment strategies, behavioral economics, issues in retirement finance, and solutions-oriented single-fund investments.

Before joining Vanguard in 2003, he was a senior research fellow at the TIAA-CREF Institute. He earned a bachelor’s degree from Stanford University, and an MA, an MPhil, and a doctorate in economics from Columbia University.