IDEAS home Printed from
MyIDEAS: Login to save this paper or follow this series

Get Shorty? - Market Impact of the 2008-09 U.K. Short Selling Ban

  • Hansson, Fredrik


    (Centre for Finance and)

  • Rüdow Fors, Erik


    (Centre for Finance and)

Registered author(s):

    In September 2008, during one of the most intense periods of the financial crisis, the Financial Services Authority (FSA) decided to ban short-selling in financial stocks during four months in the U.K. market. The aim of the ban was to guard against instability and calm the market. This paper examines the effect of the ban on the banned stocks in terms of returns and market quality measured by abnormal returns, volatility, bid-ask spreads and volumes using intraday data. Event study methods and panel regressions are used to isolate the effects of the ban as specifically as possible. We do not find evidence of any effects of the ban on abnormal returns and volatilities, largely due to the extreme levels of noise during the financial crisis. However, we do find strong evidence that the bid-ask spreads in the affected stocks widened during the ban and that the trading activity in the banned stocks decreased.

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

    File URL:
    Download Restriction: no

    Paper provided by University of Gothenburg, Department of Economics in its series Working Papers in Economics with number 365.

    in new window

    Length: 40 pages
    Date of creation: 11 Jun 2009
    Date of revision:
    Handle: RePEc:hhs:gunwpe:0365
    Contact details of provider: Postal: Department of Economics, School of Business, Economics and Law, University of Gothenburg, Box 640, SE 405 30 GÖTEBORG, Sweden
    Phone: 031-773 10 00
    Web page:

    More information through EDIRC

    References listed on IDEAS
    Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

    as in new window
    1. Jones, Charles M. & Lamont, Owen A., 2002. "Short-sale constraints and stock returns," Journal of Financial Economics, Elsevier, vol. 66(2-3), pages 207-239.
    2. Lauren Cohen & Karl B. Diether & Christopher J. Malloy, 2007. "Supply and Demand Shifts in the Shorting Market," Journal of Finance, American Finance Association, vol. 62(5), pages 2061-2096, October.
    3. A. Craig MacKinlay, 1997. "Event Studies in Economics and Finance," Journal of Economic Literature, American Economic Association, vol. 35(1), pages 13-39, March.
    4. Ho, Kim Wai, 1996. "Short-sales restrictions and volatility The case of the Stock Exchange of Singapore," Pacific-Basin Finance Journal, Elsevier, vol. 4(4), pages 377-391, December.
    5. 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.
    6. Arturo Bris & William N. Goetzmann & Ning Zhu, 2003. "Efficiency and the Bear: Short Sales and Markets around the World," Yale School of Management Working Papers ysm321, Yale School of Management.
    7. Au, Andrea S. & Doukas, John A. & Onayev, Zhan, 2009. "Daily short interest, idiosyncratic risk, and stock returns," Journal of Financial Markets, Elsevier, vol. 12(2), pages 290-316, May.
    8. Foster, F Douglas & Viswanathan, S, 1993. " Variations in Trading Volume, Return Volatility, and Trading Costs: Evidence on Recent Price Formation Models," Journal of Finance, American Finance Association, vol. 48(1), pages 187-211, March.
    9. Miller, Edward M, 1977. "Risk, Uncertainty, and Divergence of Opinion," Journal of Finance, American Finance Association, vol. 32(4), pages 1151-68, September.
    10. Brown, Stephen J. & Warner, Jerold B., 1985. "Using daily stock returns : The case of event studies," Journal of Financial Economics, Elsevier, vol. 14(1), pages 3-31, March.
    11. Bollen, Bernard & Inder, Brett, 2002. "Estimating daily volatility in financial markets utilizing intraday data," Journal of Empirical Finance, Elsevier, vol. 9(5), pages 551-562, December.
    12. Lee, Charles M C & Ready, Mark J, 1991. " Inferring Trade Direction from Intraday Data," Journal of Finance, American Finance Association, vol. 46(2), pages 733-46, June.
    13. Asquith, Paul & Pathak, Parag A. & Ritter, Jay R., 2005. "Short interest, institutional ownership, and stock returns," Journal of Financial Economics, Elsevier, vol. 78(2), pages 243-276, November.
    14. Brown, Stephen J. & Warner, Jerold B., 1980. "Measuring security price performance," Journal of Financial Economics, Elsevier, vol. 8(3), pages 205-258, September.
    15. 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.
    16. Ekkehart Boehmer & Charles M. Jones & Xiaoyan Zhang, 2008. "Which Shorts Are Informed?," Journal of Finance, American Finance Association, vol. 63(2), pages 491-527, 04.
    17. Andersen T. G & Bollerslev T. & Diebold F. X & Labys P., 2001. "The Distribution of Realized Exchange Rate Volatility," Journal of the American Statistical Association, American Statistical Association, vol. 96, pages 42-55, March.
    18. Eric C. Chang & Joseph W. Cheng & Yinghui Yu, 2007. "Short-Sales Constraints and Price Discovery: Evidence from the Hong Kong Market," Journal of Finance, American Finance Association, vol. 62(5), pages 2097-2121, October.
    19. Ole E. Barndorff-Nielsen & Neil Shephard, 2001. "Non-Gaussian Ornstein-Uhlenbeck-based models and some of their uses in financial economics," Journal of the Royal Statistical Society Series B, Royal Statistical Society, vol. 63(2), pages 167-241.
    20. Parkinson, Michael, 1980. "The Extreme Value Method for Estimating the Variance of the Rate of Return," The Journal of Business, University of Chicago Press, vol. 53(1), pages 61-65, January.
    21. Huang, Roger D. & Stoll, Hans R., 2001. "Tick Size, Bid-Ask Spreads, and Market Structure," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 36(04), pages 503-522, December.
    Full references (including those not matched with items on IDEAS)

    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

    When requesting a correction, please mention this item's handle: RePEc:hhs:gunwpe:0365. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Marie Andersson)

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.