Why are investors still pouring money into active funds despite numerous findings of underperformance and growing supply of low-cost passive alternatives? Recent equity fund studies explain this behavior with a positive activity-performance relation. This study is the first consistently...

This study introduces an innovative approach to measuring the “style-shifting activity” (SSA) of mutual funds using daily returns. Applying our new measure to a comprehensive sample of 2631 active US equity mutual funds, we show (i) that SSA predicts future performance, especially for...

Measuring the performance of stock portfolios that include options is challenging due to options' nonlinearity in the underlying, their exposure to volatility risk, and their time decay. Our contribution to the literature is twofold: First, we provide a theoretically rigorous derivation of the...