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The Asymmetry of the Price Impact of Block Trades and the Bid-Ask Spread. Evidence from the London Stock Exchange

Author

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  • Andros Gregoriou

    (Brunel Business School, Economics and Finance Section, Brunel University)

Abstract

In this paper we examine the price impact of block trades for FTSE 100 firms over the time period 1998-2004. Resembling previous research we find evidence of an asymmetric price impact between block purchases and sales. We suggest that bid-ask bias may be a new conjecture to the asymmetry in the differences in buyer and seller initiated trades.

Suggested Citation

  • Andros Gregoriou, 2007. "The Asymmetry of the Price Impact of Block Trades and the Bid-Ask Spread. Evidence from the London Stock Exchange," Money Macro and Finance (MMF) Research Group Conference 2006 76, Money Macro and Finance Research Group.
  • Handle: RePEc:mmf:mmfc06:76
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    File URL: http://repec.org/mmf2006/up.25250.1145441479.pdf
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    References listed on IDEAS

    as
    1. Engle, Robert F. & Patton, Andrew J., 2004. "Impacts of trades in an error-correction model of quote prices," Journal of Financial Markets, Elsevier, vol. 7(1), pages 1-25, January.
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    3. Gemmill, Gordon, 1996. "Transparency and Liquidity: A Study of Block Trades on the London Stock Exchange under Different Publication Rules," Journal of Finance, American Finance Association, vol. 51(5), pages 1765-1790, December.
    4. Heflin, Frank & Shaw, Kenneth W., 2000. "Blockholder Ownership and Market Liquidity," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 35(4), pages 621-633, December.
    5. Keim, Donald B & Madhaven, Ananth, 1996. "The Upstairs Market for Large-Block Transactions: Analysis and Measurement of Price Effects," The Review of Financial Studies, Society for Financial Studies, vol. 9(1), pages 1-36.
    6. Lease, Ronald C & Masulis, Ronald W & Page, John R, 1991. "An Investigation of Market Microstructure Impacts on Event Study Returns," Journal of Finance, American Finance Association, vol. 46(4), pages 1523-1536, September.
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    8. Ellis, Katrina & Michaely, Roni & O'Hara, Maureen, 2000. "The Accuracy of Trade Classification Rules: Evidence from Nasdaq," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 35(4), pages 529-551, December.
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    More about this item

    Keywords

    Block Trades; Bid-Ask Bias; Asymmetry; Market Microstructure;
    All these keywords.

    JEL classification:

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

    NEP fields

    This paper has been announced in the following NEP Reports:

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