Using the details of vesting terms, we document that stock options granted in high investor sentiment periods tend to have shorter vesting periods and durations, and are more likely to vest completely or have a significantly larger fraction vested within one year of the grant date, relative to...

We develop statistical methods to detect informed trading in options markets. We apply these methods to 31 companies from various sectors over 14 years analyzing approximately 9.6 million option prices. We find that option informed trading tends to cluster prior to certain events, takes place...

This appendix extends the empirical results in Chesney, Crameri, and Mancini (2011). Informed trading activities on put and call options are analyzed for 19 companies in the banking and insurance sectors from January 1996 to September 2009. Our empirical findings suggest that certain events such...

Contrary to classic financial strategy based on the rational behaviour of economic agents, behavioural finance offers a more pragmatic vision of markets, notably by applying psychology.It is now fairly widely acknowledged that the assumption of market efficiency upon which classic financial...

We study how short-term changes in institutional owner attention affect managers' disclosure choices. Holding institutional ownership constant and controlling for industry-quarter effects, we find that managers respond to attention by increasing the number of forecasts and 8-K filings. Rather...

We provide detailed descriptions, including over 550 mathematical formulas, for over 150 trading strategies across a host of asset classes (and trading styles). This includes stocks, options, fixed income, futures, ETFs, indexes, commodities, foreign exchange, convertibles, structured assets,...

Recent research on blockholders focuses on activist hedge funds and documents positive stock but negative bond returns. This study investigates the role of blockholder heterogeneity on security market effects and target firm follow-on activities across three important dimensions: identity,...

We survey the textual sentiment literature, comparing and contrasting the various information sources, content analysis methods, and empirical models that have been used to date. We summarize the important and influential findings about how textual sentiment impacts on individual, firm-level and...

Firms under the threat of hedge fund activism on average experience significant losses of outstanding bondholder wealth: bond yield and default probability rises while bond prices and ratings deteriorate. Under-threat firms receive inferior terms when initiating new loans. These observations are...

This paper investigates the role of institutional trading in the emergence of hedge fund activism – an important corporate governance mechanism. We demonstrate that institutional sales raise a firm's probability of becoming an activist target. Further, by exploiting the funding circumstances...