...So Jung Kim; Sun-Joong Yoon This study analyzes whether KOSPI200 option returns can be predicted by call-put implied volatility spreads. Doran et al. (2013) show that call-put implied volatility spreads predict the option returns of a specific moneyness as well as underlying asset returns in the US...

... of the reference entity. Empirically, I find crosssectional evidence that the current increase in CDS-to-debt ratios can predict a decrease in stock prices and an increase in CDS premia of the reference firms in the next week. Greater predictability for firms with investment grade credit ratings or low CDS-to-debt...