Advanced Search
MyIDEAS: Login

Are Insiders' Trades Informative?

Contents:

Author Info

  • Josef Lakonishok
  • Inmoo Lee
Registered author(s):

    Abstract

    We document insider trading activities of all companies listed on the NYSE, Amex, and Nasdaq exchanges during the 1975-1995 period. Insider trading is common, and in more than half the sample firms, there is at least some insider activity in a given year. In general, very little market movement is observed when insiders trade and when they report their trades to the SEC. Insiders in aggregate are contrarian investors. However, they predict market movements better than simple contrarian strategies. Insiders also seem to be able to predict cross-sectional stock returns. The result, however, is driven by insider's ability to predict returns in smaller firms. In addition, insider purchases are more informative than insider sales.

    Download Info

    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: http://www.nber.org/papers/w6656.pdf
    Download Restriction: no

    Bibliographic Info

    Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 6656.

    as in new window
    Length:
    Date of creation: Jul 1998
    Date of revision:
    Publication status: published as Review of Financial Studies, Volume: 14 Issue: 1 Pages: 79-111 (2001)
    Handle: RePEc:nbr:nberwo:6656

    Note: AP
    Contact details of provider:
    Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.
    Phone: 617-868-3900
    Email:
    Web page: http://www.nber.org
    More information through EDIRC

    Related research

    Keywords:

    References

    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. Finnerty, Joseph E, 1976. "Insiders and Market Efficiency," Journal of Finance, American Finance Association, vol. 31(4), pages 1141-48, September.
    2. Chan, Louis K C & Lakonishok, Josef, 1995. " The Behavior of Stock Prices around Institutional Trades," Journal of Finance, American Finance Association, vol. 50(4), pages 1147-74, September.
    3. Conrad, Jennifer & Kaul, Gautam, 1993. " Long-Term Market Overreaction or Biases in Computed Returns?," Journal of Finance, American Finance Association, vol. 48(1), pages 39-63, March.
    4. Seyhun, H Nejat, 1988. "The Information Content of Aggregate Insider Trading," The Journal of Business, University of Chicago Press, vol. 61(1), pages 1-24, January.
    5. Whitney K. Newey & Kenneth D. West, 1986. "A Simple, Positive Semi-Definite, Heteroskedasticity and AutocorrelationConsistent Covariance Matrix," NBER Technical Working Papers 0055, National Bureau of Economic Research, Inc.
    6. Loughran, Tim, 1997. "Book-to-Market across Firm Size, Exchange, and Seasonality: Is There an Effect?," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 32(03), pages 249-268, September.
    7. Lee, Inmoo & Loughran, Tim, 1998. "Performance following convertible bond issuance," Journal of Corporate Finance, Elsevier, vol. 4(2), pages 185-207, June.
    8. Lee, Inmoo, 1997. " Do Firms Knowingly Sell Overvalued Equity?," Journal of Finance, American Finance Association, vol. 52(4), pages 1439-66, September.
    9. De Bondt, Werner F M & Thaler, Richard, 1985. " Does the Stock Market Overreact?," Journal of Finance, American Finance Association, vol. 40(3), pages 793-805, July.
    10. Seyhun, H Nejat, 1992. "Why Does Aggregate Insider Trading Predict Future Stock Returns?," The Quarterly Journal of Economics, MIT Press, vol. 107(4), pages 1303-31, November.
    11. Lakonishok, Josef & Shleifer, Andrei & Vishny, Robert W, 1994. " Contrarian Investment, Extrapolation, and Risk," Journal of Finance, American Finance Association, vol. 49(5), pages 1541-78, December.
    12. Ritter, Jay R, 1991. " The Long-run Performance of Initial Public Offerings," Journal of Finance, American Finance Association, vol. 46(1), pages 3-27, March.
    13. Loughran, Tim & Ritter, Jay R, 1995. " The New Issues Puzzle," Journal of Finance, American Finance Association, vol. 50(1), pages 23-51, March.
    14. Fama, Eugene F & French, Kenneth R, 1988. "Permanent and Temporary Components of Stock Prices," Journal of Political Economy, University of Chicago Press, vol. 96(2), pages 246-73, April.
    15. Fama, Eugene F. & French, Kenneth R., 1993. "Common risk factors in the returns on stocks and bonds," Journal of Financial Economics, Elsevier, vol. 33(1), pages 3-56, February.
    16. David Ikenberry & Josef Lakonishok & Theo Vermaelen, 1994. "Market Underreaction to Open Market Share Repurchases," NBER Working Papers 4965, National Bureau of Economic Research, Inc.
    17. Lin, Ji-Chai & Howe, John S, 1990. " Insider Trading in the OTC Market," Journal of Finance, American Finance Association, vol. 45(4), pages 1273-84, September.
    18. Jaffe, Jeffrey F, 1974. "Special Information and Insider Trading," The Journal of Business, University of Chicago Press, vol. 47(3), pages 410-28, July.
    19. James M. Poterba & Lawrence H. Summers, 1987. "Mean Reversion in Stock Prices: Evidence and Implications," NBER Working Papers 2343, National Bureau of Economic Research, Inc.
    20. Chopra, Navin & Lakonishok, Josef & Ritter, Jay R., 1992. "Measuring abnormal performance : Do stocks overreact?," Journal of Financial Economics, Elsevier, vol. 31(2), pages 235-268, April.
    21. Kothari, S. P. & Warner, Jerold B., 1997. "Measuring long-horizon security price performance," Journal of Financial Economics, Elsevier, vol. 43(3), pages 301-339, March.
    22. Rozeff, Michael S & Zaman, Mir A, 1988. "Market Efficiency and Insider Trading: New Evidence," The Journal of Business, University of Chicago Press, vol. 61(1), pages 25-44, January.
    23. Ikenberry, David L. & Rankine, Graeme & Stice, Earl K., 1996. "What Do Stock Splits Really Signal?," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 31(03), pages 357-375, September.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as in new window

    Cited by:
    1. Leslie A. Jeng & Andrew Metrick & Richard Zeckhauser, 1999. "The Profits to Insider Trading: A Performance-Evaluation Perspective," Harvard Institute of Economic Research Working Papers 1858, Harvard - Institute of Economic Research.
    2. Henryk Gurgul & PaweĊ‚ Majdosz, 2007. "The informational content of insider trading disclosures: empirical results for the Polish stock market," Central European Journal of Operations Research, Springer, vol. 15(1), pages 1-19, March.
    3. Leslie A. Jeng & Andrew Metrick & Richard Zeckhauser, . "Estimating the Returns to Insider Trading," Rodney L. White Center for Financial Research Working Papers 19-99, Wharton School Rodney L. White Center for Financial Research.
    4. Xiang, Jihong & He, Jia & Cao, Min, 2002. "Continuous overreaction, insiders trading activities and momentum strategies," Journal of Multinational Financial Management, Elsevier, vol. 12(4-5), pages 429-449.

    Lists

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

    Statistics

    Access and download statistics

    Corrections

    When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:6656. 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: ().

    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.