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Review of Financial Studies Vol. 26 No. 6 2013

Shackling Short Sellers: The 2008 Shorting Ban

Ekkehart Boehmer1; Charles M. Jones2; Xiaoyan Zhang3

1 Ecole des Hautes Etudes Commerciales du Nord · 2 Columbia Business School · 3 Krannert School of Management Purdue University

Abstract

In September 2008, the U.S. Securities and Exchange Commission (SEC) temporarily banned most short sales in nearly 1,000 financial stocks. We examine the ban's effect on market quality, shorting activity, the aggressiveness of short sellers, and stock prices. The ban's effects are concentrated in larger stocks; there is little effect on firms in the lower half of the size distribution. Although shorting activity drops by about 77% in large-cap stocks, stock prices appear unaffected by the ban. All but the smallest quartile of firms subject to the ban suffer a severe degradation in market quality.

DOI
10.1093/rfs/hht017
Volume
26
Issue
6
Pages
1363-1400
Language
en
Sources
openalex crossref

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