IDEAS home Printed from
   My bibliography  Save this article

Demand Curves for Stocks Do Slope Down: New Evidence from an Index Weights Adjustment


  • Aditya Kaul
  • Vikas Mehrotra
  • Randall Morck


Weights in the Toronto Stock Exchange 300 index are determined by the market values of the included stocks' public floats. In November 1996, the exchange implemented a previously announced revision of its definition of the public float. This revision, which increased the floats and the index weights of 31 stocks, conveyed no information and had no effect on the legal duties of shareholders. Affected stocks experienced statistically significant excess returns of 2.3 percent during the event week, and no price reversal occurred as trading volume returned to normal levels. These findings support downward sloping demand curves for stocks.

Suggested Citation

  • 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, April.
  • Handle: RePEc:bla:jfinan:v:55:y:2000:i:2:p:893-912
    DOI: 10.1111/0022-1082.00230

    Download full text from publisher

    File URL:
    Download Restriction: no

    Other versions of this item:

    References listed on IDEAS

    1. Lynch, Anthony W & Mendenhall, Richard R, 1997. "New Evidence on Stock Price Effects Associated with Changes in the S&P 500 Index," The Journal of Business, University of Chicago Press, vol. 70(3), pages 351-383, July.
    2. Scholes, Myron S, 1972. "The Market for Securities: Substitution versus Price Pressure and the Effects of Information on Share Prices," The Journal of Business, University of Chicago Press, vol. 45(2), pages 179-211, April.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Nawal Seif Kassim & Roslily Ramlee & Salina Kassim, 2017. "Impact of Inclusion into and Exclusion from the Shariah Index on a Stock Price and Trading Volume: An Event Study Approach," International Journal of Economics and Financial Issues, Econjournals, vol. 7(2), pages 40-51.
    2. Fernandes, Marcelo & Mergulhão, João, 2016. "Anticipatory effects in the FTSE 100 index revisions," Journal of Empirical Finance, Elsevier, vol. 37(C), pages 79-90.
    3. Zhang, Yue, 2015. "The securitization of gold and its potential impact on gold stocks," Journal of Banking & Finance, Elsevier, vol. 58(C), pages 309-326.
    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. Wang, Chuan & Murgulov, Zoltan & Haman, Janto, 2015. "Impact of changes in the CSI 300 Index constituents," Emerging Markets Review, Elsevier, vol. 24(C), pages 13-33.
    6. Ernan Haruvy & Charles N. Noussair & Owen Powell, 2014. "The Impact of Asset Repurchases and Issues in an Experimental Market," Review of Finance, European Finance Association, vol. 18(2), pages 681-713.
    7. Markus K. Brunnermeier & Lasse Heje Pedersen, 2005. "Predatory Trading," Journal of Finance, American Finance Association, vol. 60(4), pages 1825-1863, August.
    8. Ernest N. Biktimirov, 2004. "The Effect of Demand on Stock Prices: Evidence from Index Fund Rebalancing," The Financial Review, Eastern Finance Association, vol. 39(3), pages 455-472, August.
    9. Andrukovich, P., 2019. "The dynamics of stock price during their listing and delisting," Journal of the New Economic Association, New Economic Association, vol. 44(4), pages 50-76.
    10. Afego, Pyemo N., 2017. "Effects of changes in stock index compositions: A literature survey," International Review of Financial Analysis, Elsevier, vol. 52(C), pages 228-239.
    11. William B. Elliott & Bonnie F. Van Ness & Mark D. Walker & Richard S. Warr, 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.
    12. Terence C. Burnham & Harry Gakidis & Jeffrey Wurgler, 2017. "A Flexible and Customizable Method for Assessing Cognitive Abilities," Working Papers 17-10, Chapman University, Economic Science Institute.
    13. Ahluwalia, Eshan & Mishra, Ajay Kumar & Tripathy, Trilochan, 2020. "Institutional ownership, investor recognition and stock performance around index rebalancing: Evidence from Indian market," Journal of Multinational Financial Management, Elsevier, vol. 55(C).
    14. 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.
    15. Houdou Basse Mama & Stefan Mueller & Ulrich Pape, 2017. "What’s in the news? The ambiguity of the information content of index reconstitutions in Germany," Review of Quantitative Finance and Accounting, Springer, vol. 49(4), pages 1087-1119, November.
    16. Kappou, Konstantina & Brooks, Chris & Ward, Charles W.R., 2008. "A re-examination of the index effect: Gambling on additions to and deletions from the S&P 500's [`]gold seal'," Research in International Business and Finance, Elsevier, vol. 22(3), pages 325-350, September.
    17. Randall Morck & Fan Yang, 2001. "The Mysterious Growing Value of S&P 500 Membership," NBER Working Papers 8654, National Bureau of Economic Research, Inc.
    18. Crystal Lin & Kenneth Yung, 2006. "Equity Capital Flows and Demand for REITs," The Journal of Real Estate Finance and Economics, Springer, vol. 33(3), pages 275-291, November.
    19. Linus Wilson, 2011. "Stock demand curves and TARP returns," Journal of Financial Economic Policy, Emerald Group Publishing, vol. 3(3), pages 229-242, August.
    20. 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.

    More about this item


    Access and download statistics


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:bla:jfinan:v:55:y:2000:i:2:p:893-912. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Wiley Content Delivery). General contact details of provider: .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.