Aggregate Short Interest and Market Valuations
AbstractWe 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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Bibliographic InfoArticle provided by American Economic Association in its journal American Economic Review.
Volume (Year): 94 (2004)
Issue (Month): 2 (May)
Other versions of this item:
- Owen A. Lamont & Jeremy C. Stein, 2003. "Aggregate Short Interest and Market Valuations," Harvard Institute of Economic Research Working Papers 2027, Harvard - Institute of Economic Research.
- Owen A. Lamont & Jeremy C. Stein, 2004. "Aggregate Short Interest and Market Valuations," NBER Working Papers 10218, National Bureau of Economic Research, Inc.
- G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
- G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
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