Intraday price reversals for index futures in the US and Hong Kong

Alexander K W FUNG*, Debby M.Y. Mok, Kin Lam

*Corresponding author for this work

    Research output: Contribution to journalJournal articlepeer-review

    47 Citations (Scopus)


    We observe intraday price reversals following large price changes at the opening of the S&P 500 Futures market and the HSI Futures market. We note that the magnitude of subsequent price reversals is positively related to the initial price changes, and that the price reversals are not caused by a bid-ask spread, or by panic among investors. We also note that such price reversals can be exploited to give rise to profitable opportunities after transaction costs, even though these may not be very significant. This study shows that investor overreaction may be a universal phenomenon and irrational investor behavior like overreaction may also exist among groups of sophisticated investors.

    Original languageEnglish
    Pages (from-to)1179-1201
    Number of pages23
    JournalJournal of Banking and Finance
    Issue number7
    Publication statusPublished - Jul 2000

    Scopus Subject Areas

    • Finance
    • Economics and Econometrics

    User-Defined Keywords

    • G14
    • G15
    • Index futures
    • Market efficiency
    • Overreaction


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