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Squeezing Shorts Through Social News Platforms

Author

Listed:
  • Angel Tengulov

    (Vanderbilt University - Finance)

  • Franklin Allen

    (Imperial College London)

  • Eric Nowak

    (Swiss Finance Institute; University of Lugano)

  • Matteo Pirovano

    (Universita della Svizzera italiana (USI Lugano); Swiss Finance Institute)

Abstract

At the end of January 2021, a group of stocks listed on US stock exchanges experienced sudden surges in their stock prices, which - coupled with high short interest – led to brief short squeeze episodes. We argue that these short squeezes were the result of coordinated trading by investors, who discussed their trading strategies on social news platforms. In addition, option markets played a central role in these events. Using hand-collected data we provide the first rigorous academic study of these short-squeezes and show that they significantly impeded market quality not only of the stocks at issue but also of their competitors. This evidence calls for tighter monitoring of social news platforms and a better understanding of the interlinkages between these platforms, derivatives markets and equity markets.

Suggested Citation

  • Angel Tengulov & Franklin Allen & Eric Nowak & Matteo Pirovano, 2021. "Squeezing Shorts Through Social News Platforms," Swiss Finance Institute Research Paper Series 21-31, Swiss Finance Institute.
    • Handle: RePEc:chf:rpseri:rp2131
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    File URL: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3823151
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    Cited by:

    1. Baig, Ahmed S. & Blau, Benjamin M. & Butt, Hassan A. & Yasin, Awaid, 2022. "Do retail traders destabilize financial markets? An investigation surrounding the COVID-19 pandemic," Journal of Banking & Finance, Elsevier, vol. 144(C).
    2. Aloosh, Arash & Ouzan, Samuel & Shahzad, Syed Jawad Hussain, 2022. "Bubbles across Meme Stocks and Cryptocurrencies," Finance Research Letters, Elsevier, vol. 49(C).
    3. Baig, Ahmed S. & Blau, Benjamin M. & Butt, Hassan A. & Yasin, Awaid, 2023. "Reprint of: Do retail traders destabilize financial markets? An investigation surrounding the COVID-19 pandemic," Journal of Banking & Finance, Elsevier, vol. 147(C).
    4. Aloosh, Arash & Choi, Hyung-Eun & Ouzan, Samuel, 2023. "The tail wagging the dog: How do meme stocks affect market efficiency?," International Review of Economics & Finance, Elsevier, vol. 87(C), pages 68-78.
    5. Daniel Bradley & Jan Hanousek & Russell Jame & Zicheng Xiao, 2024. "Place Your Bets? The Value of Investment Research on Reddit’s Wallstreetbets," The Review of Financial Studies, Society for Financial Studies, vol. 37(5), pages 1409-1459.

    More about this item

    Keywords

    Limits to arbitrage; Short selling; Short squeeze; Gamma squeeze; Social news platforms;
    All these keywords.

    JEL classification:

    • G10 - Financial Economics - - General Financial Markets - - - General (includes Measurement and Data)
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G13 - Financial Economics - - General Financial Markets - - - Contingent Pricing; Futures Pricing
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G18 - Financial Economics - - General Financial Markets - - - Government Policy and Regulation

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