Reliable excess returns from active portfolio management derive from informed trading. We investigate the information content of informed trading in the equity market and the options market. We find that informed equity trading and options trading are positively correlated in the time-series,...

Extant research has focused on mutual fund managers' ability to time market returns or volatility. In this paper, we offer a new perspective on the traditional timing issue by examining fund managers' ability to time market wide liquidity. Using the CRSP mutual fund database, we find strong...

One of the main explanations for the idiosyncratic volatility (IVOL) puzzle (i.e., the negative relation between lagged IVOL and returns) is a missing risk factor. We show analytically that if IVOL proxies for a missing risk factor, then the negative relation between IVOL and returns should...