This study investigates the convergence process toward efficiency of daily top gainers. The convergence process toward efficiency is much clearer as a result of using a GARCH(1, 1) model compared to the OLS model, and exhibits a monotonic decline as the time interval increases. The...

Investors have been working hard to find the best trading strategy. Previous studies suggest that order imbalance can be a state variable in explaining cross sectional stock return. In this article, we examine dynamic relations between order imbalance, volatility and stock return of top gainers....

We examine the dynamic relationship between self-tender returns, volatility and order imbalances. Since market makers care more about volatilities than inventory risk, they tend to lower the bid-ask spread to mitigate volatility. This result is different from the previous argument whereby market...