A Forward-Looking Factor Model for Volatility: Estimation and Implications for Predicting Disasters
Kadan, Ohad; Liu, Fang Ph.D; Tang, Xiaoxiao
We show that any factor structure for stock returns can be naturally translated into a factor structure for return volatility. We use this structure to propose a methodology for estimating forward-looking variances and covariances of both factors and individual assets from option prices at a high frequency. We implement the model empirically and show that our forward-looking volatility estimates provide useful predictions of rare disasters for both factors and individual stocks.
stock return; volatility; S&P 500 stocks; facture structure; Fam-MacBeth
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