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What Drives the S&P 500 Inclusion Effect? An Analytical Survey


  • William B. Elliott
  • Bonnie F. Ness
  • Mark D. Walker
  • Richard S. Wan


We present an analytical survey of the explanations-price pressure, downward-sloping demand curves, improved liquidity, improved operating performance, and increased investor awareness-for the increase in stock value associated with inclusion in the S&P 500 Index. We find that increased investor awareness is the primary factor behind the cross-section of abnormal announcement returns. We also find some evidence of temporary price pressure around the inclusion date. We find no evidence that long-run downward-sloping demand curves for stocks, anticipated improvements in operating performance, or increased liquidity are related to the cross-section of announcement or inclusion returns. Copyright (c) 2006 Financial Management Association International.

Suggested Citation

  • William B. Elliott & Bonnie F. Ness & Mark D. Walker & Richard S. Wan, 2006. "What Drives the S&P 500 Inclusion Effect? An Analytical Survey," Financial Management, Financial Management Association International, vol. 35(4), pages 31-48, December.
  • Handle: RePEc:bla:finmgt:v:35:y:2006:i:4:p:31-48

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    Cited by:

    1. repec:eee:finana:v:52:y:2017:i:c:p:228-239 is not listed on IDEAS
    2. Chen, Haiwei & Ngo, Thanh, 2017. "Leverage-based index revisions: The case of Dow Jones Islamic Market World Index," Global Finance Journal, Elsevier, vol. 32(C), pages 16-34.
    3. Levy, Tamir & Yagil, Joseph, 2013. "Changing the methodology of equity indices—The case of the Tel-Aviv Stock Exchange," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 26(C), pages 91-99.
    4. Azevedo, Alcino & Karim, Mohamad & Gregoriou, Andros & Rhodes, Mark, 2014. "Stock price and volume effects associated with changes in the composition of the FTSE Bursa Malaysian KLCI," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 28(C), pages 20-35.
    5. repec:eco:journ1:2017-02-06 is not listed on IDEAS
    6. Honghui Chen & Vijay Singal & Robert F. Whitelaw, 2015. "Comovement Revisited," NBER Working Papers 21281, National Bureau of Economic Research, Inc.
    7. Huseynov, Fariz & Sardarli, Sabuhi & Zhang, Wei, 2017. "Does index addition affect corporate tax avoidance?," Journal of Corporate Finance, Elsevier, vol. 43(C), pages 241-259.
    8. Karel Hrazdil, 2010. "S&P 500 index inclusion announcements: does the S&P committee tell us something new?," Managerial Finance, Emerald Group Publishing, vol. 36(5), pages 368-393, April.
    9. repec:ibf:ijbfre:v:11:y:2017:i:2:p:81-92 is not listed on IDEAS
    10. repec:ibn:ijefaa:v:9:y:2017:i:4:p:185-190 is not listed on IDEAS
    11. repec:kap:rqfnac:v:49:y:2017:i:4:d:10.1007_s11156-017-0617-1 is not listed on IDEAS
    12. Kot, Hung Wan & Leung, Harry K.M. & Tang, Gordon Y.N., 2015. "The long-term performance of index additions and deletions: Evidence from the Hang Seng Index," International Review of Financial Analysis, Elsevier, vol. 42(C), pages 407-420.
    13. Chen, Honghui & Singal, Vijay & Whitelaw, Robert F., 2016. "Comovement revisited," Journal of Financial Economics, Elsevier, vol. 121(3), pages 624-644.
    14. Chen, Wei-Kuang & Lin, Ching-Ting, 2016. "Asymmetric responses to stock index reconstitutions: Evidence from the CSI 300 index additions and deletions," Pacific-Basin Finance Journal, Elsevier, vol. 40(PA), pages 36-48.
    15. Chan, Kalok & Kot, Hung Wan & Tang, Gordon Y.N., 2013. "A comprehensive long-term analysis of S&P 500 index additions and deletions," Journal of Banking & Finance, Elsevier, vol. 37(12), pages 4920-4930.

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