Biography

Brad Stevens is a Portfolio Manager and Co-Head of the Disciplined Alpha Team at Loomis, Sayles & Company. Prior to being named Co-Head of the team in 2025, he was a Credit Portfolio Manager on the team, responsible for idea generation and security selection within his sectors. Brad began his investment industry career in 2000. He joined Loomis Sayles in 2010 from the California Public Employees’ Retirement System, where he was an investment officer in credit. Previously, Brad traded equity options at Timber Hill LLC. He earned a BA in economics from Denison University and an MBA from Columbia Business School. Brad is a CFAĀ® charterholder.

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Latest Insights by Brad Stevens, CFA

Alpha Engine Perspectives The Role of Portfolio Impact (PI) in the Disciplined Alpha Strategy
September 22, 2025 • 22 min read

The Role of Portfolio Impact (PI) in the Disciplined Alpha Strategy

We use Portfolio Impact (PI), a transparent and relatively straightforward risk measure, to help understand portfolio-level sector risk and issue-specific (idiosyncratic) risk.
Disciplined Alpha

About the Disciplined Alpha Team

Investors on the Disciplined Alpha team

Seth Timen
Co-Head of Disciplined Alpha Team, Portfolio Manager
Andrew Henwood, CFA
Credit Portfolio Manager
Sudhir Bhat, CFA
Mortgage Portfolio Manager
Marc Frank, CFA
Senior Credit Trader
Brian Gibbs, CFA
Senior Credit Trader
Matthew Boynton
Portfolio Manager
Bruce Saldinger
Quantitative Analyst
Jonathan Kimbro, CAIA
Investment Director
Mirsada Durakovic
Credit Portfolio Manager
Timi Ajibola
Securitized Portfolio Manager
Philip Lok
Securitized Products Trader
Camden Wang, PhD
Quantitative Analyst
Gabriela Servin-Cendejas
Senior Investment Associate
Marguerite Hanlon
Investment Associate
Valerie Banas
Trading Assistant