We find no evidence of monthly return reversals for the top quintile of small- and large-cap stocks ranked by turnover. Indeed, stocks in the top decile of turnover display short-term momentum. We argue these findings arise from a combination of effects. First, short-term reversals stem from...

DeMiguel et al. (2009) report that naive diversification dominates mean-variance optimization in out-of-sample asset allocation tests. Our analysis suggests that this is largely due to their research design, which focuses on portfolios that are subject to high estimation risk and extreme...

DeMiguel et al. (2009) report that naive diversification dominates mean-variance optimization in out-of-sample asset allocation tests. Our analysis suggests that this is largely due to their research design, which focuses on mean-variance efficient portfolios that are subject to high estimation...