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Do Hedge Funds Manipulate Stock Prices?

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Author Info

  • Itzhak Ben-David

    (Ohio State University)

  • Francesco A. Franzoni

    (University of Lugano and Swiss Finance Institute)

  • Augustin Landier

    (Toulouse School of Economics)

  • Rabih Moussawi

    (University of Pennsylvania - The Wharton School)

Abstract

We provide evidence suggesting that some hedge funds manipulate stock prices on critical reporting dates. Stocks in the top quartile of hedge fund holdings exhibit abnormal returns of 0.30% on the last day of the quarter and a reversal of 0.25% on the following day. A significant part of the return is earned during the last minutes of trading. Analysis of intraday volume and order imbalance provides further evidence consistent with manipulation. These patterns are stronger for funds that have higher incentives to improve their ranking relative to their peers.

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Bibliographic Info

Paper provided by Swiss Finance Institute in its series Swiss Finance Institute Research Paper Series with number 11-53.

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Length: 47 pages
Date of creation:
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Handle: RePEc:chf:rpseri:rp1153

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Web page: http://www.SwissFinanceInstitute.ch
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Related research

Keywords: Hedge fund; Manipulation; Stock; Reporting; Manager; Monthly returns; Competition; Inflation; Fraud; Performance reporting; Investors; Returns;

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References

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  1. Agarwal, Vikas & Fos, Vyacheslav & Jiang, Wei, 2010. "Inferring reporting biases in hedge fund databases from hedge fund equity holdings," CFR Working Papers 10-08, University of Cologne, Centre for Financial Research (CFR).
  2. Ippolito, Richard A, 1992. "Consumer Reaction to Measures of Poor Quality: Evidence from the Mutual Fund Industry," Journal of Law and Economics, University of Chicago Press, vol. 35(1), pages 45-70, April.
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  4. Getmansky, Mila & Lo, Andrew W. & Makarov, Igor, 2004. "An econometric model of serial correlation and illiquidity in hedge fund returns," Journal of Financial Economics, Elsevier, vol. 74(3), pages 529-609, December.
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  6. Bollen, Nicolas P. B. & Pool, Veronika K., 2008. "Conditional Return Smoothing in the Hedge Fund Industry," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 43(02), pages 267-298, June.
  7. Campbell, John Y & Ramadorai, Tarun & Schwartz, Allie, 2007. "Caught On Tape: Institutional Trading, Stock Returns, and Earnings Announcements," CEPR Discussion Papers 6390, C.E.P.R. Discussion Papers.
  8. Holmstrom, Bengt & Milgrom, Paul, 1991. "Multitask Principal-Agent Analyses: Incentive Contracts, Asset Ownership, and Job Design," Journal of Law, Economics and Organization, Oxford University Press, vol. 7(0), pages 24-52, Special I.
  9. Holmstrom, Bengt, 1999. "Managerial Incentive Problems: A Dynamic Perspective," Review of Economic Studies, Wiley Blackwell, vol. 66(1), pages 169-82, January.
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  11. Markus K. Brunnermeier & Stefan Nagel, 2004. "Hedge Funds and the Technology Bubble," Journal of Finance, American Finance Association, vol. 59(5), pages 2013-2040, October.
  12. Mark M. Carhart & Ron Kaniel & David K. Musto & Adam V. Reed, 2002. "Leaning for the Tape: Evidence of Gaming Behavior in Equity Mutual Funds," Journal of Finance, American Finance Association, vol. 57(2), pages 661-693, 04.
  13. Xiaoyan Ni, Sophie & Pearson, Neil D. & Poteshman, Allen M., 2005. "Stock price clustering on option expiration dates," Journal of Financial Economics, Elsevier, vol. 78(1), pages 49-87, October.
  14. Erik R. Sirri & Peter Tufano, 1998. "Costly Search and Mutual Fund Flows," Journal of Finance, American Finance Association, vol. 53(5), pages 1589-1622, October.
  15. Itzhak Ben-David & Francesco Franzoni & Rabih Moussawi, 2012. "Hedge Fund Stock Trading in the Financial Crisis of 2007--2009," Review of Financial Studies, Society for Financial Studies, vol. 25(1), pages 1-54.
  16. Daniel, Kent, et al, 1997. " Measuring Mutual Fund Performance with Characteristic-Based Benchmarks," Journal of Finance, American Finance Association, vol. 52(3), pages 1035-58, July.
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Cited by:
  1. Stivers, Chris & Sun, Licheng, 2013. "Returns and option activity over the option-expiration week for S&P 100 stocks," Journal of Banking & Finance, Elsevier, vol. 37(11), pages 4226-4240.

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