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The Effect of Short Selling on Market Reactions to Earnings Announcements

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  • DENNIS J. LASSER
  • XUE WANG
  • YAN ZHANG

Abstract

This paper examines the effect of the inherent demand implied by short interest by studying how stock price reactions to earnings announcements depend on the level of short interest. We find that, for extreme good and bad news events, the inherent demand increases stock prices around the earnings announcement date, with the effect being stronger for good news relative to bad news. Specifically, the initial market reaction to an extreme positive earnings surprise is larger for firms with high levels of short interest. On the other hand, for an extreme negative earnings surprise event, the initial market reaction is less negative for heavily shorted firms. Furthermore, we find that the post†earnings†announcement drift is smaller (larger) in magnitude for extreme positive (negative) earnings surprises for the heavily shorted firms.

Suggested Citation

  • Dennis J. Lasser & Xue Wang & Yan Zhang, 2010. "The Effect of Short Selling on Market Reactions to Earnings Announcements," Contemporary Accounting Research, John Wiley & Sons, vol. 27(2), pages 348-348, June.
    • Handle: RePEc:wly:coacre:v:27:y:2010:i:2:p:348-348
    DOI: 10.1111/j.1911-3846.2010.01023_6.x
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    Cited by:

    1. Yanxi Li & Siu Kai Choy & Mingzhu Wang, 2022. "The potential built‐in supply effect from margin trading in the Chinese stock market," The Financial Review, Eastern Finance Association, vol. 57(4), pages 835-861, November.
    2. Baker, H. Kent & Ni, Yang & Saadi, Samir & Zhu, Hui, 2019. "Competitive earnings news and post-earnings announcement drift," International Review of Financial Analysis, Elsevier, vol. 63(C), pages 331-343.
    3. Shyu, Yih-Wen & Chan, Kam C. & Liang, Hsin-Yu, 2018. "Spillovers of price efficiency and informed trading from short sales to margin purchases in absence of uptick rule," Pacific-Basin Finance Journal, Elsevier, vol. 50(C), pages 163-183.
    4. Jonathan A. Milian, 2015. "Unsophisticated Arbitrageurs and Market Efficiency: Overreacting to a History of Underreaction?," Journal of Accounting Research, Wiley Blackwell, vol. 53(1), pages 175-220, March.
    5. Mazouz, Khelifa & Wu, Yuliang, 2022. "Why do firm fundamentals predict returns? Evidence from short selling activity," International Review of Financial Analysis, Elsevier, vol. 79(C).
    6. Wang, Heng Emily & Wang, Qin Emma & Wu, Wentao, 2022. "Short selling surrounding data breach announcements," Finance Research Letters, Elsevier, vol. 47(PB).
    7. Josef Fink, 2020. "A Review of the Post-Earnings-Announcement Drift," Working Paper Series, Social and Economic Sciences 2020-04, Faculty of Social and Economic Sciences, Karl-Franzens-University Graz.
    8. Fink, Josef, 2021. "A review of the Post-Earnings-Announcement Drift," Journal of Behavioral and Experimental Finance, Elsevier, vol. 29(C).
    9. Hae Mi Choi, 2020. "Short‐sale constraints and informational efficiency to private information: A natural experiment," The Financial Review, Eastern Finance Association, vol. 55(4), pages 625-643, November.
    10. Kelley Bergsma & Jitendra Tayal, 2019. "Short Interest and Lottery Stocks," Financial Management, Financial Management Association International, vol. 48(1), pages 187-227, March.
    11. Paul A. Griffin & Hyun A. Hong & Jeong-Bon Kim, 2016. "Price discovery in the CDS market: the informational role of equity short interest," Review of Accounting Studies, Springer, vol. 21(4), pages 1116-1148, December.
    12. Martineau, Charles, 2021. "Rest in Peace Post-Earnings Announcement Drift," SocArXiv z7k3p, Center for Open Science.

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