Abstract

http://ssrn.com/abstract=2089466
 
 

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The Role of Shorting, Firm Size, and Time on Market Anomalies


Ronen Israel


Interdisciplinary Center, Herzliyah

Tobias J. Moskowitz


University of Chicago - Booth School of Business

May 1, 2012

Chicago Booth Research Paper No. 12-22

Abstract:     
We examine the role of shorting, firm size, and time on the profitability of size, value, and momentum strategies. We find that long positions comprise almost all of size, 60% of value, and half of momentum profits. Shorting becomes less important for momentum and more important for value as firm size decreases. The value premium decreases with firm size and is weak among the largest stocks. Momentum profits, however, exhibit no reliable relation with size. These effects are robust over 86 years of U.S. equity data and almost 40 years of data across four international equity markets and five asset classes. Variation over time and across markets of these effects is consistent with random chance. We find little evidence that size, value, and momentum returns are significantly affected by changes in trading costs or institutional and hedge fund ownership over time.

Number of Pages in PDF File: 49

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Date posted: June 23, 2012  

Suggested Citation

Israel, Ronen and Moskowitz, Tobias J., The Role of Shorting, Firm Size, and Time on Market Anomalies (May 1, 2012). Chicago Booth Research Paper No. 12-22. Available at SSRN: http://ssrn.com/abstract=2089466 or http://dx.doi.org/10.2139/ssrn.2089466

Contact Information

Ronen Israel
Interdisciplinary Center, Herzliyah ( email )
P.O. Box 167
Herzliya, 46150
Israel
972-9-9527306 (Phone)
Tobias J. Moskowitz (Contact Author)
University of Chicago - Booth School of Business ( email )
5807 S. Woodlawn Avenue
Chicago, IL 60637
United States
773-834-2757 (Phone)
773-702-0458 (Fax)
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