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Implied Volatility in Options Markets and Conditional Heteroscedasticity in Stock Markets

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  • Choi, Seungmook
  • Wohar, Mark E

Abstract

This study examines whether or not the volatility of stock index returns forecasted by a GARCH-M specification is consistent with the implied volatility observed in options markets. Recent data for the New York Stock Exchange Composite Index and Standard & Poor's 500 Index and their options are employed. The patterns of the term structure of implied volatility are compared with those of volatility estimates obtained from the GARCH process. The results indicate that the GARCH process appears to partially explain the variation of implied volatilities and the term structure of implied volatilities. Copyright 1992 by MIT Press.

Suggested Citation

  • Choi, Seungmook & Wohar, Mark E, 1992. "Implied Volatility in Options Markets and Conditional Heteroscedasticity in Stock Markets," The Financial Review, Eastern Finance Association, vol. 27(4), pages 503-530, November.
    • Handle: RePEc:bla:finrev:v:27:y:1992:i:4:p:503-30
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    Cited by:

    1. Carl H. Korkpoe & Peterson Owusu Junior, 2018. "Behaviour of Johannesburg Stock Exchange All Share Index Returns - An Asymmetric GARCH and News Impact Effects Approach," SPOUDAI Journal of Economics and Business, SPOUDAI Journal of Economics and Business, University of Piraeus, vol. 68(1), pages 26-42, January-M.

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