20 Nov 2025
1h 20m

Episode 384: Mamdouh Medhat - A Profitability Retrospective, and Private Fund Performance

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The Rational Reminder Podcast

In this episode of The Rational Reminder Podcast, Benjamin Felix and Cameron Passmore interview Mamdouh Medhat, a researcher and investment manager at Dimensional Fund Advisors, about his research on profitability, global diversification, and private investments. The discussion covers a retrospective analysis of the profitability premium, its relationship to quality, defensive strategies, and value investing. Medhat shares insights on tilting towards or away from countries based on aggregate characteristics and delves into private market fund performance, including the importance of benchmark choice and public market factor exposures. The conversation also explores the diversification benefits of private assets and the criteria for predicting successful managers.

Outlines

Part 1: Introduction and Profitability Premium

Part 2: Value Underperformance and Practical Implications

Part 3: Private Markets and Factor Exposures

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