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Cited by 203

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Aggregate Short Interest and Market Valuations

Lamont, Owen A, Stein, Jeremy C·2004·American Economic Review

Abstract

We examine some basic data on the evolution of aggregate short interest, both during the dot-com era, and at other times in history. Total short interest moves in a countercyclical fashion. For example, short interest in NASDAQ stocks actually declines as the NASDAQ index approaches its peak. Moreover, this decline does not seem to reflect a substitution away from outright short-selling and towards put options, as the ratio of put-to-call volume displays the same countercyclical tendency. The evidence suggests that: i) arbitrageurs are reluctant to bet against aggregate mispricings; and ii) short-selling does not play a particularly helpful role in stabilizing the overall stock market.

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Metadata

Authors
Lamont, O. A., & Stein, J. C.
Venue
American Economic Review
Published
2004-04-01
Volume
94
Issue
2
Pages
29-32
ISSN
0002-8282 (ISSN-L)
OpenAlex
W3125633137
Cited by
203
References
1
FWCI
13.93
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Aggregate Short Interest and Market Valuations. https://app.cochat.ai/papers/10.1257/0002828041301759
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Lamont, O. A., & Stein, J. C. (2004). Aggregate Short Interest and Market Valuations. American Economic Review. https://doi.org/10.1257/0002828041301759

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