Yulin Long is a Vice president, Portfolio Manager and Head of Quantitative Research for American Century Investments®, a premier investment manager headquartered in Kansas City, Mo. Dr. Long joined the company in 2005. She became a senior quantitative analyst in 2007, a vice president and senior quantitative analyst in 2012, and a portfolio manager in 2013. Previously, she was an analyst focused on the development of an international stock selection model. Prior to that, she worked for Cornerstone Research as an associate conducting financial and accounting analysis for complex business litigation cases. Dr. Long earned a Ph.D. in accounting from Stanford University. She also has a Master of Philosophy degree in accounting from Hong Kong University of Science and Technology and a bachelor's degree in finance from Beijing University. She is a CFA charterholder.

Stephen Quance is chief investment officer - disciplined equity, senior vice president, and head of analytics & strategy implementation for American Century Investments®. Stephen co-manages the U.S. Disciplined Core Value, U.S. Disciplined Large Cap Core, U.S. Disciplined Large Cap Growth, U.S. Disciplined Small Cap Core, U.S. Utilities, Non-U.S. Disciplined Large Cap Value, Global Gold, and U.S. Low Volatility Equity strategies. He is also responsible for overseeing research, platform development and execution capabilities for all strategies managed by the Disciplined Equity group. Prior to joining American Century Investments in 2023, Stephen was the global director of factor investing at Invesco Ltd., responsible for maintaining and coordinating the factor investing research agenda across investment centers globally. He joined Invesco as their director of factor investing, Asia Pacific. Prior to Invesco, Stephen was a vice president and portfolio manager with Dimensional Fund Advisors. He started in the industry as a financial advisor with UBS AG and has worked in the industry since 2003. Stephen holds a bachelor's degree in civil and environmental engineering from Rice University and a master's degree in business administration from the University of Texas, McCombs School of Business.

Mattia contributes to the portfolio management of all strategies and funds managed by the Disciplined Equity group. Before joining American Century in 2024, Mattia was with Vanguard Asset Management where he held responsibilities in portfolio management and research within their Quantitative Equity Group. He initially joined Vanguard as an investment risk analyst. Prior to Vanguard, Mattia was a senior consultant in Ernst & Young’s Capital Markets Group and also served as an MTS fixed income indices associate with the London Stock Exchange Group. He has worked in the industry since 2011. Mattia earned a bachelor’s degree in political science from LUISS Guido Carli University in Rome, a master’s degree in political science and political economy from the London School of Economics, and a master’s degree in economics and law from the University of Bologna. He is a CFA© charterholder and member of the CFA Institute and holds a Certificate in Quantitative Finance (CQF).