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Journal of Financial Economics Vol. 96 No. 1 2010

The good news in short interest

Ekkehart Boehmer1,2; Zsuzsa R. Huszár; Bradford D. Jordan3

1 University of Oregon · 2 Ecole des Hautes Etudes Commerciales du Nord · 3 University of Kentucky

open access

Abstract

Stocks with relatively high short interest subsequently experience negative abnormal returns, but the effect can be transient and of debatable economic significance. In contrast, relatively heavily traded stocks with low short interest experience both statistically and economically significant positive abnormal returns. These positive returns are often larger (in absolute value) than the negative returns observed for heavily shorted stocks. Thus, the positive information associated with low short interest, which is publicly available, is only slowly incorporated into prices, which raises a broader market efficiency issue. Our results also cast doubt on existing theories of the impact of short sale constraints.

DOI
10.1016/j.jfineco.2009.12.002
Volume
96
Issue
1
Pages
80-97
Language
en
Sources
crossref bibtex:phds-export.bib openalex

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