This paper studies the relation between the uncertainty of volatility, measured as the volatility of volatility, and future delta-hedged equity option returns. We find that delta-hedged option returns consistently decrease in uncertainty of volatility. Our results hold for different measures of...

This paper studies the effects of default risk on equity option returns. We show that there is a cross-sectional and a time-series relation between default risk and option returns. In the cross-section, expected delta-hedged equity option returns have a negative relation with default risk...

This paper proposes a GARCH-jump mixed model for individual stock returns that takes into account four types of risks: the systematic and idiosyncratic jumps and the systematic and idiosyncratic diffusive volatility. By considering a general pricing kernel with all underlying risk factors, we...

We find that an option-based equity tail risk factor is priced in the cross section of currency returns. Currencies highly exposed to this factor offer a low risk premium because they hedge against equity tail risk. In a reduced-form model, we show that a long-short portfolio that buys...