Index composition changes and the cost of incumbency
This paper provides evidence of information effects and portfolio rebalancing effects that occur when stocks are added to or excluded from the S&P 500 index and finds that incumbents in the index realize negative excess returns when S&P revises the composition of the index. We also find that for incumbents that are in the same industry as the added firm, the price-pressure effects are mitigated by positive industry-level information and momentum effects. For index exclusions, the magnitude of the loss sustained by incumbents from the same industry as the excluded firm is larger than that realized by the non-industry incumbents, as the negative information and momentum effects reinforce the price-pressure effects. Our results suggest that changes in the composition of the index are not information-free events; however, the portfolio rebalancing effects dominate the industry information effects.
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- Eckbo, B. Espen, 1983. "Horizontal mergers, collusion, and stockholder wealth," Journal of Financial Economics, Elsevier, vol. 11(1-4), pages 241-273, April.
- Firth, Michael, 1996. "Dividend Changes, Abnormal Returns, and Intra-lndustry Firm Valuations," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 31(02), pages 189-211, June.
- Hertzel, Michael G, 1991. " The Effects of Stock Repurchases on Rival Firms," Journal of Finance, American Finance Association, vol. 46(2), pages 707-16, June.
- Liu, Shinhua, 2009. "Index membership and predictability of stock returns: The case of the Nikkei 225," Pacific-Basin Finance Journal, Elsevier, vol. 17(3), pages 338-351, June.
- Aditya Kaul & Vikas Mehrotra & Randall Morck, 1999.
"Demand Curves for Stocks Do Slope Down: New Evidence From An Index Weights Adjustment,"
Harvard Institute of Economic Research Working Papers
1884, Harvard - Institute of Economic Research.
- Aditya Kaul & Vikas Mehrotra & Randall Morck, 2000. "Demand Curves for Stocks "Do "Slope Down: New Evidence from an Index Weights Adjustment," Journal of Finance, American Finance Association, vol. 55(2), pages 893-912, 04.
- Asem, Ebenezer, 2009. "Dividends and price momentum," Journal of Banking & Finance, Elsevier, vol. 33(3), pages 486-494, March.
- Eckel, Catherine & Eckel, Doug & Singal, Vijay, 1997. "Privatization and efficiency: Industry effects of the sale of British Airways," Journal of Financial Economics, Elsevier, vol. 43(2), pages 275-298, February.
- Ding, Bill & Shawky, Hany A. & Tian, Jianbo, 2009. "Liquidity shocks, size and the relative performance of hedge fund strategies," Journal of Banking & Finance, Elsevier, vol. 33(5), pages 883-891, May.
- Shleifer, Andrei, 1986. " Do Demand Curves for Stocks Slope Down?," Journal of Finance, American Finance Association, vol. 41(3), pages 579-90, July.
- Jeffrey Wurgler & Ekaterina Zhuravskaya, 2000.
"Does Arbitrage Flatten Demand Curves for Stocks?,"
Yale School of Management Working Papers
ysm152, Yale School of Management, revised 01 Nov 2001.
- Brent W. Ambrose & Dong Wook Lee & Joe Peek, 2007. "Comovement After Joining an Index: Spillovers of Nonfundamental Effects," Real Estate Economics, American Real Estate and Urban Economics Association, vol. 35(1), pages 57-90, 03.
- Li, Xiafei & Miffre, Joëlle & Brooks, Chris & O'Sullivan, Niall, 2008.
"Momentum profits and time-varying unsystematic risk,"
Journal of Banking & Finance,
Elsevier, vol. 32(4), pages 541-558, April.
- Xiafei Li & Chris Brooks & Joelle Miffre, 2006. "Momentum Profits and Time-Varying Unsystematic Risk," ICMA Centre Discussion Papers in Finance icma-dp2006-09, Henley Business School, Reading University, revised Sep 2006.
- Aharony, Joseph & Swary, Itzhak, 1983. "Contagion Effects of Bank Failures: Evidence from Capital Markets," The Journal of Business, University of Chicago Press, vol. 56(3), pages 305-22, July.
- Otchere, Isaac, 2009. "Competitive and value effects of bank privatization in developed countries," Journal of Banking & Finance, Elsevier, vol. 33(12), pages 2373-2385, December.
- Rakowski, David & Wang, Xiaoxin, 2009. "The dynamics of short-term mutual fund flows and returns: A time-series and cross-sectional investigation," Journal of Banking & Finance, Elsevier, vol. 33(11), pages 2102-2109, November.
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