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Volatility Information Trading in the Option Market




This paper investigates informed trading on stock volatility in the option market. We construct non-market maker net demand for volatility from the trading volume of individual equity options and find that this demand is informative about the future realized volatility of underlying stocks. We also find that the impact of volatility demand on option prices is positive. More importantly, the price impact increases by 40% as informational asymmetry about stock volatility intensifies in the days leading up to earnings announcements and diminishes to its normal level soon after the volatility uncertainty is resolved. Copyright (c) 2008 by The American Finance Association.

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  • Sophie X. Ni & Jun Pan & Allen M. Poteshman, 2008. "Volatility Information Trading in the Option Market," Journal of Finance, American Finance Association, vol. 63(3), pages 1059-1091, June.
  • Handle: RePEc:bla:jfinan:v:63:y:2008:i:3:p:1059-1091

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    References listed on IDEAS

    1. Malcolm Baker & Jeremy C. Stein & Jeffrey Wurgler, 2003. "When Does the Market Matter? Stock Prices and the Investment of Equity-Dependent Firms," The Quarterly Journal of Economics, Oxford University Press, vol. 118(3), pages 969-1005.
    2. Malcolm Baker & Jeffrey Wurgler, 2006. "Investor Sentiment and the Cross-Section of Stock Returns," Journal of Finance, American Finance Association, vol. 61(4), pages 1645-1680, August.
    3. Raghuram G. Rajan, 1994. "Why Bank Credit Policies Fluctuate: A Theory and Some Evidence," The Quarterly Journal of Economics, Oxford University Press, vol. 109(2), pages 399-441.
    4. Bengt Holmström, 1999. "Managerial Incentive Problems: A Dynamic Perspective," Review of Economic Studies, Oxford University Press, vol. 66(1), pages 169-182.
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