Implied volatility surfaces and market activity over time

Thierry Ané () and Chiraz Labidi ()

Journal of Economics and Finance, 2001, vol. 25, issue 3, 259-275

Abstract: An impressive body of the literature has investigated the patterns of changes in implied volatilities across strike prices and maturities. Although such studies try to explain the existence of the volatility skew and term structure, they remain silent about the evolution of the volatility surface as time goes by and market variables move. Relying on a technique of signal processing called Independent Component Analysis, we extract volatility modes that account for most of the variations in the shape of the surface. We then relate the magnitude of volatility changes along those modes to market activity. Copyright Academy of Economics and Finance 2001

Date: 2001
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DOI: 10.1007/BF02745888

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