Buy-Side Competition and Momentum Profits

Gerard Hoberg, Nitin Kumar and Nagpurnanand Prabhala

The Review of Financial Studies, 2022, vol. 35, issue 1, 254-298

Abstract: We show that a new measure of buy-side competition explains momentum profits. The momentum quintile spread is 1.11% when competition is low and negligible when competition is high. Better alphas are attained with superior Sharpe and Sortino ratios, with no negative skewness, and in more investible strategies featuring value-weighted portfolios and large capitalization stocks. Stock characteristics traditionally related to momentum do not explain our results. Tests based on long-term reversals, the trading patterns of funds, their style peers, distant funds, and retail investors suggest that slow information diffusion explains the large momentum spreads and momentum reversals in low competition markets.

JEL-codes: G11 G14 G23 (search for similar items in EconPapers)
Date: 2022
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