Can trading volume help unravel the long-term overreaction puzzle? With portfolios of non-S&P 500 NYSE stocks, we show that (1) both the high- and low-volume (abnormal volume) contrarian portfolios earn a much higher market-adjusted excess return than the normal-volume contrarian portfolio, (2)...

Using the adverse selection component of the spread as a measure of asymmetric information, we investigate how asymmetric information evolves after firms go public. We find that the level of asymmetric information is lower immediately after the initial public offering (IPO) compared with its...

Using a nonparametric variance ratio (VR) test, we revisit the empirical validity of the random walk hypothesis in eight emerging markets in the Middle East and North Africa (MENA). After correcting for measurement biases caused by thin and infrequent trading prevalent in nascent and small stock...

This study examines which trade sizes move stock prices on the Stock Exchange of Thailand (SET), a pure limit order market, over two distinct market conditions of bull and bear. Using intraday data, the study finds that large-sized trades (i.e., those larger than the 75th percentile) account for...