The purpose of this paper is to examine the wealth effect of the Check Clearing for the 21st Century Act, also known as Check 21, on bank stock return. We use event study analysis on thirty-four U.S. bank stocks listed on the New York Stock Exchange. Our analysis reveals that Check 21 is...

The informed options trading hypothesis posits that option prices lead stock prices. In this paper, we extended the research on this hypothesis to open-market share repurchases. Empirical tests showed that the implied volatility spread was not significantly related to buy-and-hold abnormal stock...

This paper examines whether share repurchase announcements are signals of undervaluation or insiders’ opportunistic activities by investigating insider trading patterns surrounding buyback announcements in Vietnam. Consistent with the insider opportunism hypothesis, we show that insiders are...