Strategic Trading As a Response to Short Sellers

Marco Di Maggio, Francesco A. Franzoni, Massimo Massa and Roberto Tubaldi
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Marco Di Maggio: Harvard Business School; National Bureau of Economic Research (NBER)
Francesco A. Franzoni: USI Lugano; Swiss Finance Institute; Centre for Economic Policy Research (CEPR)
Massimo Massa: INSEAD - Finance
Roberto Tubaldi: USI Lugano; Swiss Finance Institute

No 19-23, Swiss Finance Institute Research Paper Series from Swiss Finance Institute

Abstract: We study empirically informed traders’ reaction to the presence of short sellers in the market. We find that investors with positive views on a stock strategically slow down their trades when short sellers are present in the same stock. Moreover, they purchase larger amounts to take advantage of the price decline induced by short sellers. Furthermore, they break up their buy trades across multiple brokers, suggesting that they wish to hide from the short sellers. This behavior may impact price discovery, as we find a sizeable reduction of positive information impounding for stocks more exposed to short selling during information sensitive periods. The evidence is confirmed exploiting exogenous variation in short interest provided by the Reg SHO Pilot Program. The findings have relevance for the regulatory debate on the market impact of short selling.

Keywords: Short selling; Informed trading; Strategic traders; Institutional Investors; Market efficiency (search for similar items in EconPapers)
JEL-codes: G30 M41 (search for similar items in EconPapers)
Pages: 56 pages
Date: 2019-04, Revised 2019-05
New Economics Papers: this item is included in nep-mst
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Persistent link: https://EconPapers.repec.org/RePEc:chf:rpseri:rp1923

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