Theory offers three main determinants of informationally driven trading volume at earnings announcements: pre-announcement difference in private information precision, belief divergence or differential interpretation, and signal strength. In this paper, we empirically test which theoretical...

We study the profitability of a strategy based on the earnings surprises. First, we attempt to identify variables, in addition to earnings surprise, that will improve our ability to predict post-earnings announcement returns. Second, we test a strategy based on the SUE effect using a...

The Post-Earnings Announcement Drift (PEAD) anomaly refers to the tendency of stock prices to continue drifting in the same direction as earnings surprises well through the subsequent earnings announcements; ignoring the autocorrelations in extreme earnings surprises across adjacent quarters....