This paper investigates the influence of information asymmetry on the cross-sectional variation of volume-return relation. We find that the dynamic volume-return relation within medium-size trades has the most significant response to the degree of information asymmetry. We also show that the...

We study the volume-volatility relation by splitting volume into the number of trades and the average trade size at individual and institutional level, and realized volatility into its continuous and jump components. We find that the number of trades is the most important variable driving...

In this paper we examine the information content of extreme trading activity in the Chinese stock market. We find that zero-investment portfolios that are constructed by buying high-volume and selling low-volume stocks do not generate positive returns (high-volume return premium), which is...