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Market Structure, Informed Trading, and Analysts' Recommendations


  • Kim, Sok Tae
  • Lin, Ji-Chai
  • Slovin, Myron B.


We examine stock price behavior in response to initial coverage, buy recommendations that are pre-released to important clients before the stock market opens, and find a strong positive valuation effect at the open. On average, it takes five minutes of trading for NYSE/AMEX stocks and 15 minutes for NASDAQ stocks to reflect the private information contained in these analyst recommendations, so when informational asymmetry is high, the centralized call market is more efficient than a competitive, but fragmented dealer market. Public news release leaves share prices unaltered. Overall, competition among informed traders causes private information to be rapidly incorporated into stock prices.

Suggested Citation

  • Kim, Sok Tae & Lin, Ji-Chai & Slovin, Myron B., 1997. "Market Structure, Informed Trading, and Analysts' Recommendations," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 32(04), pages 507-524, December.
  • Handle: RePEc:cup:jfinqa:v:32:y:1997:i:04:p:507-524_00

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    Cited by:

    1. Hansen, Robert S., 2015. "What is the value of sell-side analysts? Evidence from coverage changes – A discussion," Journal of Accounting and Economics, Elsevier, vol. 60(2), pages 58-64.
    2. repec:kap:rqfnac:v:50:y:2018:i:3:d:10.1007_s11156-017-0644-y is not listed on IDEAS
    3. AltInkIlIç, Oya & Hansen, Robert S., 2009. "On the information role of stock recommendation revisions," Journal of Accounting and Economics, Elsevier, vol. 48(1), pages 17-36, October.
    4. repec:exl:2manag:v:17:y:2016:i:1:p:123-148 is not listed on IDEAS
    5. repec:kap:iaecre:v:20:y:2014:i:4:p:369-384 is not listed on IDEAS
    6. Thomas Pöppe & Michael Aitken & Dirk Schiereck & Ingo Wiegand, 2016. "A PIN per day shows what news convey: the intraday probability of informed trading," Review of Quantitative Finance and Accounting, Springer, vol. 47(4), pages 1187-1220, November.
    7. Stübinger, Johannes & Walter, Dominik & Knoll, Julian, 2017. "Financial market predictions with Factorization Machines: Trading the opening hour based on overnight social media data," FAU Discussion Papers in Economics 19/2017, Friedrich-Alexander University Erlangen-Nuremberg, Institute for Economics.
    8. Son, Byung-Gak & Sodhi, ManMohan & Kocabasoglu-Hillmer, Canan & Lee, Tae-Hee, 2016. "Supply chain information in analyst reports on publicly traded companies," International Journal of Production Economics, Elsevier, vol. 171(P3), pages 350-360.
    9. Devos, Erik & Hao, Wei & Prevost, Andrew K. & Wongchoti, Udomsak, 2015. "Stock return synchronicity and the market response to analyst recommendation revisions," Journal of Banking & Finance, Elsevier, vol. 58(C), pages 376-389.
    10. Dridi, Ramdan & Germain, Laurent, 2004. "Bullish/Bearish Strategies of Trading: A Nonlinear Equilibrium," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 39(04), pages 873-886, December.
    11. repec:uts:finphd:34 is not listed on IDEAS
    12. Ramnath, Sundaresh & Rock, Steve & Shane, Philip, 2008. "The financial analyst forecasting literature: A taxonomy with suggestions for further research," International Journal of Forecasting, Elsevier, vol. 24(1), pages 34-75.
    13. Brockman, Paul & Howe, John S. & Mortal, Sandra, 2008. "Stock market liquidity and the decision to repurchase," Journal of Corporate Finance, Elsevier, vol. 14(4), pages 446-459, September.
    14. repec:wsi:qjfxxx:v:04:y:2014:i:04:n:s2010139214500189 is not listed on IDEAS
    15. Patrick J. Kelly, 2014. "Information Efficiency and Firm-Specific Return Variation," Quarterly Journal of Finance (QJF), World Scientific Publishing Co. Pte. Ltd., vol. 4(04), pages 1-44.
    16. Alexandre de Carvalho & Alberto Sanyuan Suen & Felippe Gallo, 2016. "Market Efficiency in Brazil: some evidence from high-frequency data," Working Papers Series 431, Central Bank of Brazil, Research Department.
    17. Gilbert, Aaron & Tourani-Rad, Alireza & Wisniewski, Tomasz Piotr, 2006. "Do insiders crowd out analysts?," Finance Research Letters, Elsevier, vol. 3(1), pages 40-48, March.
    18. Wisniewski, Tomasz Piotr & Lambe, Brendan, 2013. "The role of media in the credit crunch: The case of the banking sector," Journal of Economic Behavior & Organization, Elsevier, vol. 85(C), pages 163-175.
    19. Busse, Jeffrey A. & Clifton Green, T., 2002. "Market efficiency in real time," Journal of Financial Economics, Elsevier, vol. 65(3), pages 415-437, September.
    20. Andreas Höfer & Andreas Oehler, 2014. "Analyst Recommendations and Regulation: Scopes for European Policy Makers to Enhance Investor Protection," International Advances in Economic Research, Springer;International Atlantic Economic Society, vol. 20(4), pages 369-384, November.
    21. Irvine, Paul J., 2003. "The incremental impact of analyst initiation of coverage," Journal of Corporate Finance, Elsevier, vol. 9(4), pages 431-451, September.
    22. Lipson, Marc L., 2003. "Market microstructure and corporate finance," Journal of Corporate Finance, Elsevier, vol. 9(4), pages 377-384, September.

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