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Title: Expected skewness and momentum

Author(s): Heiko Jacobs, Tobias Regele and Martin Weber

Publication Date: August 2016

Keyword(s): behavioral finance, Market Efficiency, Momentum, return predictability and Skewness

Programme Area(s): Financial Economics

Abstract: Motivated by the time-series insights of Daniel and Moskowitz (2016), we investigate the link between expected skewness and momentum in the cross-section. The alpha of skewness-enhanced (-weakened) momentum is about twice (half) as large as the traditional alpha. These findings are driven by the short leg. Portfolio sorts, Fama-MacBeth regressions, and the market reaction to earnings announcements suggest that expected skewness is an important determinant of momentum. Due to the simplicity of the approach, its economic magnitude, its existence among large stocks, and the success of risk management, the results are difficult to reconcile with the efficient market hypothesis.

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Bibliographic Reference

Jacobs, H, Regele, T and Weber, M. 2016. 'Expected skewness and momentum'. London, Centre for Economic Policy Research. https://cepr.org/active/publications/discussion_papers/dp.php?dpno=11455