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Analysis of Firm Risk around S&P 500 Index Changes


  • Stoyu I. Ivanov

    () (San Jose State University)


In this study we extend the work of Vijh (1994), Barberis, Shleifer, and Wurgler (2005), Denis, McConnell, Ovtchinnikov and Yu (2003) and Geppert, Ivanov and Karels (2011) by examining the effects of the addition to or deletion from the S&P 500 index on the firm's Fama - French four factor model loadings before and after the event. We find that added to and deleted from the S&P 500 index firms experience unique sensitivity to the Small cap minus Big cap (SMB) and momentum (UMD) factors. This finding and robustness tests indicate that addition to and deletion from the S&P 500 index have a unique and profound fundamental effect on the added and deleted firm.

Suggested Citation

  • Stoyu I. Ivanov, 2012. "Analysis of Firm Risk around S&P 500 Index Changes," Economics Bulletin, AccessEcon, vol. 32(2), pages 1576-1589.
  • Handle: RePEc:ebl:ecbull:eb-12-00390

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    References listed on IDEAS

    1. Campbell, John Y, 1991. "A Variance Decomposition for Stock Returns," Economic Journal, Royal Economic Society, vol. 101(405), pages 157-179, March.
    2. Carhart, Mark M, 1997. " On Persistence in Mutual Fund Performance," Journal of Finance, American Finance Association, vol. 52(1), pages 57-82, March.
    3. Fama, Eugene F & French, Kenneth R, 1996. " Multifactor Explanations of Asset Pricing Anomalies," Journal of Finance, American Finance Association, vol. 51(1), pages 55-84, March.
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    More about this item


    Beta Changes; S&P500 Constituents Changes; Fama-French Factor Loadings;

    JEL classification:

    • G1 - Financial Economics - - General Financial Markets
    • G3 - Financial Economics - - Corporate Finance and Governance


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