This study finds that firm life stage affects investor behavior around earnings announcements. Introduction and decline stage companies exhibit significantly less positive cumulative abnormal returns (CARs) around positive earnings surprises and more negative CARs around negative earnings...

Behavioral theories contend that the human decision-making process tends to both incorporate anchor points and improperly weight low probability events. In this study, we find evidence that equity option market investors anchor to prices and incorporate a probability weighting function similar...

Our study explores whether the disposition effect occurs in U.S. equity option markets. The disposition effect implies past winning securities will be undervalued and past losing securities will be overvalued. By adapting Grinblatt and Han's [2005] unrealized capital gains proxy to the option...

We examine how informed traders trade in the option market around news announcements. We show that their profits depend on whether positions are long or short, whether trades take place before or after news releases, and whether events are scheduled or unscheduled. We predict and find that...

In 2018 a currency crisis occurred in Turkey, accompanied by varied and differential trading amongst investors. We classify investors as foreign or local investors as well as individual or institutional and examine trading behavior and associated returns leading up to, during and after the...