Abstract

http://ssrn.com/abstract=2322830
 


 



Retail Short Selling and Stock Prices


Eric K. Kelley


University of Tennessee

Paul C. Tetlock


Columbia Business School - Finance and Economics

May 1, 2016

Columbia Business School Research Paper No. 13-70

Abstract:     
Using proprietary data on millions of trades by retail investors, we provide the first large-scale evidence that retail short selling predicts negative stock returns. A portfolio that mimics weekly retail shorting earns an annualized risk-adjusted return of 9%. The predictive ability of retail short selling persists after controlling for known predictors of returns, including institutional short selling. In contrast to institutional shorting, retail shorting best predicts returns in small stocks and those that are heavily bought by other retail investors. Our findings are consistent with retail short sellers having unique insights into the retail investor community and small firms' fundamentals.

Number of Pages in PDF File: 52

Keywords: short selling, retail investor, informed trading, return predictability, market efficiency

JEL Classification: G00, G10, G12, G14


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Date posted: September 11, 2013 ; Last revised: May 6, 2016

Suggested Citation

Kelley, Eric K. and Tetlock, Paul C., Retail Short Selling and Stock Prices (May 1, 2016). Columbia Business School Research Paper No. 13-70. Available at SSRN: http://ssrn.com/abstract=2322830 or http://dx.doi.org/10.2139/ssrn.2322830

Contact Information

Eric K. Kelley
University of Tennessee ( email )
916 Volunteer Blvd
Knoxville, TN 37996
United States
Paul C. Tetlock (Contact Author)
Columbia Business School - Finance and Economics ( email )
3022 Broadway
New York, NY 10027
United States
212-854-9895 (Fax)
HOME PAGE: http://www0.gsb.columbia.edu/faculty/ptetlock/

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