Malkiel and Xu (1997) state that idiosyncratic volatility is highly correlated with size and that it plays a powerful role in explaining expected returns. In this paper we ask (a) whether idiosyncratic volatility is useful in explaining the variation in expected returns; and, (b) whether our...

In this paper we compare the performance of the traditional CAPM with the multifactor model of Fama and French (1996) for equities listed in the Shanghai Stock Exchange. We also investigate the explanatory power of idiosyncratic volatility and respond to the claim that multifactor model findings...