We contribute to the growing debate on the relation between macroeconomic risk and stock price momentum. Not only is momentum seasonal, so is its net factor exposure. We show that winners and losers only differ in macroeconomic factor loadings during January, the one month when losers...

The prevailing view of implied volatility comovements, IVC, defined as the correlation between a firm's implied volatility and the market's implied volatility, is that they indicate the presence of systematic volatility risk to the firm's investors. We take a different stance and conjecture that...