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Detecting insider trading: The theory and validation in Korea Exchange

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  • Park, Young S.
  • Lee, Jaehyun
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    Abstract

    This paper provides an empirical basis for identifying insider transactions by deriving a theoretical model, which incorporates the relationship between insider transactions and time series of stock returns. Thus, this model enables us detecting insider transactions by applying stock return time series. We show that when there is an insider transaction in the market, time series can be derived as an ARMA(1,1) process having closed solution coefficients. For validation of the model, we test publicly released insider transactions and reverse takeover events using the minute-by-minute stock price data. The selected events show higher pass rate of the detection criteria than the current detection system which shows that our model produces smaller Type II error than the existing post transaction-based cumulative abnormal return model.

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    Bibliographic Info

    Article provided by Elsevier in its journal Journal of Banking & Finance.

    Volume (Year): 34 (2010)
    Issue (Month): 9 (September)
    Pages: 2110-2120

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    Handle: RePEc:eee:jbfina:v:34:y:2010:i:9:p:2110-2120

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    Web page: http://www.elsevier.com/locate/jbf

    Related research

    Keywords: Insider trading Surveillance ARMA;

    References

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    1. Wassim Daher & Leonard J. Mirman, 2004. "Market structure and insider trading," Cahiers de la Maison des Sciences Economiques b04025, Université Panthéon-Sorbonne (Paris 1).
    2. Lee, Yi-Tsung & Liu, Yu-Jane & Roll, Richard & Subrahmanyam, Avanidhar, 2004. "Order Imbalances and Market Efficiency: Evidence from the Taiwan Stock Exchange," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 39(02), pages 327-341, June.
    3. Daher, Wassim & Mirman, Leonard J., 2006. "Cournot duopoly and insider trading with two insiders," The Quarterly Review of Economics and Finance, Elsevier, vol. 46(4), pages 530-551, September.
    4. Szakmary, Andrew C. & Shen, Qian & Sharma, Subhash C., 2010. "Trend-following trading strategies in commodity futures: A re-examination," Journal of Banking & Finance, Elsevier, vol. 34(2), pages 409-426, February.
    5. Lakonishok, Josef & Lee, Inmoo, 2001. "Are Insider Trades Informative?," Review of Financial Studies, Society for Financial Studies, vol. 14(1), pages 79-111.
    6. Wang, Leonard F.S. & Wang, Ya-Chin & Ren, Shuang, 2009. "Stackelberg financial-leader in insider trading model," International Review of Economics & Finance, Elsevier, vol. 18(1), pages 123-131, January.
    7. Harris, Richard D.F. & Yilmaz, Fatih, 2009. "A momentum trading strategy based on the low frequency component of the exchange rate," Journal of Banking & Finance, Elsevier, vol. 33(9), pages 1575-1585, September.
    8. Meulbroek, Lisa K, 1992. " An Empirical Analysis of Illegal Insider Trading," Journal of Finance, American Finance Association, vol. 47(5), pages 1661-99, December.
    9. Tarun Chordia, 2001. "Market Liquidity and Trading Activity," Journal of Finance, American Finance Association, vol. 56(2), pages 501-530, 04.
    10. Huddart, Steven & Hughes, John S & Levine, Carolyn B, 2001. "Public Disclosure and Dissimulation of Insider Trades," Econometrica, Econometric Society, vol. 69(3), pages 665-81, May.
    11. Seyhun, H Nejat & Bradley, Michael, 1997. "Corporate Bankruptcy and Insider Trading," The Journal of Business, University of Chicago Press, vol. 70(2), pages 189-216, April.
    12. Brockman, Paul & Yan, Xuemin (Sterling), 2009. "Block ownership and firm-specific information," Journal of Banking & Finance, Elsevier, vol. 33(2), pages 308-316, February.
    13. Seyhun, H. Nejat, 1986. "Insiders' profits, costs of trading, and market efficiency," Journal of Financial Economics, Elsevier, vol. 16(2), pages 189-212, June.
    14. Markus K. Brunnermeier, 2005. "Information Leakage and Market Efficiency," Review of Financial Studies, Society for Financial Studies, vol. 18(2), pages 417-457.
    15. Aktas, Nihat & de Bodt, Eric & Van Oppens, Hervé, 2008. "Legal insider trading and market efficiency," Journal of Banking & Finance, Elsevier, vol. 32(7), pages 1379-1392, July.
    16. Kyle, Albert S, 1985. "Continuous Auctions and Insider Trading," Econometrica, Econometric Society, vol. 53(6), pages 1315-35, November.
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    Citations

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    Cited by:
    1. Lyudmila A. Glik & Oleg L. Kritski, 2014. "Detecting informed activities in European-style option tradings," Papers 1403.3294, arXiv.org.
    2. Olmo, Jose & Pilbeam, Keith & Pouliot, William, 2011. "Detecting the presence of insider trading via structural break tests," Journal of Banking & Finance, Elsevier, vol. 35(11), pages 2820-2828, November.
    3. Lyudmila A. Glik & Oleg L. Kritski, 2014. "Finding informed traders in futures and their inderlying assets in intraday trading," Papers 1402.6583, arXiv.org.

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