After the …nancialization of commodity futures markets in 2004-05 oil volatility has become a strong predictor of returns and volatility of the overall stock market.Furthermore, stocks'exposure to oil volatility risk now drives the cross-section of expected returns. The di¤erence in average return between the quintile of stocks with low exposure and high exposure to oil volatility is signi…cant at 0.66% per month, and oil volatility risk carries a signi…cant risk premium of -0.60% per month. In the post…nancialization period, oil volatility risk is strongly related with various measures of funding liquidity constraints suggesting an economic channel for the e¤ect. JEL Classi…cations: G12, G13, E44, Q02