We show that the average difference between the implied volatilities of call and put options on individual equities, which we term the implied volatility spread (IVS), has strong predictive power for stock market returns at horizons between one and six months, with monthly in-sample and...

This paper proposes a new explanation of the negative correlation between VIX betas and expected stock returns documented by Ang et al. (2006). While the relation has been widely cited as the proof that market volatility risk is priced in the cross-section of stocks, we find this view highly...

We propose that differences between overnight and daytime returns are the result of return extrapolation. After high daytime returns, morning order imbalances are high in the first 15 minutes of regular trading the next day, which is consistent with higher overnight returns. The effect is...

This paper develops a new approach to explain why risk factors constructed from option returns are priced in the stock market. We decompose an option- based factor into three main components and identify the one responsible for the beta-return relationship. Applying this method to the bear risk...