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The Impact of Short Selling on Intraday Volatility: Evidence from the Istanbul Stock Exchange


  • Çankaya, Serkan
  • Eken, Hasan/M.
  • Ulusoy, Veysel


This paper examines the interrelation between short selling and volatility as differing from previous research in that it focuses on intraday activities rather than the daily price movements. We demonstrate that the effects of short selling activity changes during the two sessions of the day and rest of trading hours. The study also presents evidence that there is a considerable amount of short selling activity in the Istanbul Stock Exchange(ISE), particularly at the beginning of opening sessions, which significantly impacts the volatility of the market for the rest of the trading day.

Suggested Citation

  • Çankaya, Serkan & Eken, Hasan/M. & Ulusoy, Veysel, 2011. "The Impact of Short Selling on Intraday Volatility: Evidence from the Istanbul Stock Exchange," MPRA Paper 43658, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:43658

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    References listed on IDEAS

    1. Garman, Mark B & Klass, Michael J, 1980. "On the Estimation of Security Price Volatilities from Historical Data," The Journal of Business, University of Chicago Press, vol. 53(1), pages 67-78, January.
    2. Çankaya, Serkan & Ulusoy, Veysel & Eken, Hasan/M., 2011. "The Behavior of Istanbul Stock Exchange Market: An Intraday Volatility/Return Analysis Approach," MPRA Paper 43656, University Library of Munich, Germany.
    3. Arturo Bris & William N. Goetzmann & Ning Zhu, 2007. "Efficiency and the Bear: Short Sales and Markets Around the World," Journal of Finance, American Finance Association, vol. 62(3), pages 1029-1079, June.
    4. Michael J. Aitken & Alex Frino & Michael S. McCorry & Peter L. Swan, 1998. "Short Sales Are Almost Instantaneously Bad News: Evidence from the Australian Stock Exchange," Journal of Finance, American Finance Association, vol. 53(6), pages 2205-2223, December.
    5. Owen A. Lamont & Richard H. Thaler, 2003. "Can the Market Add and Subtract? Mispricing in Tech Stock Carve-outs," Journal of Political Economy, University of Chicago Press, vol. 111(2), pages 227-268, April.
    6. Miller, Edward M, 1977. "Risk, Uncertainty, and Divergence of Opinion," Journal of Finance, American Finance Association, vol. 32(4), pages 1151-1168, September.
    7. Jose A. Scheinkman & Wei Xiong, 2003. "Overconfidence and Speculative Bubbles," Journal of Political Economy, University of Chicago Press, vol. 111(6), pages 1183-1219, December.
    8. Danielsen, Bartley R. & Sorescu, Sorin M., 2001. "Why Do Option Introductions Depress Stock Prices? A Study of Diminishing Short Sale Constraints," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 36(04), pages 451-484, December.
    9. Pedro A. C. Saffi & Kari Sigurdsson, 2011. "Price Efficiency and Short Selling," Review of Financial Studies, Society for Financial Studies, vol. 24(3), pages 821-852.
    10. Ólan T. Henry & Michael McKenzie, 2006. "The Impact of Short Selling on the Price-Volume Relationship: Evidence from Hong Kong," The Journal of Business, University of Chicago Press, vol. 79(2), pages 671-692, March.
    11. Ekkehart Boehmer & Charles M. Jones & Xiaoyan Zhang, 2008. "Which Shorts Are Informed?," Journal of Finance, American Finance Association, vol. 63(2), pages 491-527, April.
    12. Diamond, Douglas W. & Verrecchia, Robert E., 1987. "Constraints on short-selling and asset price adjustment to private information," Journal of Financial Economics, Elsevier, vol. 18(2), pages 277-311, June.
    13. Seraina GRUENEWALD & Alexander F. WAGNER & Rolf H. WEBER, "undated". "Short Selling Regulation after the Financial Crisis – First Principles Revisited," Swiss Finance Institute Research Paper Series 09-28, Swiss Finance Institute.
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    Cited by:

    1. Guglielmo Caporale & Luis Gil-Alana & Alex Plastun & Inna Makarenko, 2016. "Intraday Anomalies and Market Efficiency: A Trading Robot Analysis," Computational Economics, Springer;Society for Computational Economics, vol. 47(2), pages 275-295, February.
    2. Baklaci, Hasan F. & Suer, Omur & Yelkenci, Tezer, 2016. "A closer insight into the causality between short selling trades and volatility," Finance Research Letters, Elsevier, vol. 17(C), pages 48-54.

    More about this item


    Short selling; Istanbul Stock Exchange; Intraday volatility; market efficiency; financial crises;

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • G01 - Financial Economics - - General - - - Financial Crises


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