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The Factor Structure in Equity Options
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DOI：10.1093/rfs/hhx089.png)
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Abstract
En 中文
Equity options display a strong factor structure. The first principal components of the equity volatility levels, skews, and term structures explain a substantial fraction of the cross-sectional variation. Furthermore, these principal components are highly correlated with the S&P 500 index option volatility, skew, and term structure, respectively. We develop an equity option valuation model that captures this factor structure. The model predicts that firms with higher market betas have higher implied volatilities, steeper moneyness slopes, and a term structure that covaries more with the market. The model provides a good fit, and the equity option data support the model's cross-sectional implications.
Keywords:
STOCHASTIC VOLATILITY
TERM STRUCTURE
RISK PREMIA
MODELS
INFORMATION
DYNAMICS
MARKETS
FEARS
GARCH
PRICE
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