Joseph Gerakos, University of Chicago Booth
Adair Morse, University of Chicago Booth
Using data on $18 trillion of assets under management, we show that actively managed institutional accounts outperformed strategy benchmarks by 88 (44) basis points on a gross (net) basis during the period 2000–2012. Estimates from a Sharpe (1992) model imply that asset managers’ outperformance came from factor exposures. If institutions had instead implemented mean variance efficient portfolios using index and institutional mutual funds available during the sample period, they would not have earned higher Sharpe ratios. Our results are consistent with the average asset manager having skill, managers competing for institutional capital, and institutions engaging in costly search to identify skilled managers.