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...

Financial decisions can be used to convey information to uninformed market participants aiming to mitigate pricing inefficiencies. Corporate share repurchases are particularly interesting since they have emerged as an integral component of corporate payout policy with a global spread. The...

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...