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...

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 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...

Shareholders' approval rates on M&A deals are informative, because they are predictive of the acquirer's post-merger operating performance. Since the passing of the deal is salient information while the specific approval rate is not, investors may misprice the detailed voting outcome due to...

We propose a theory in which each stock's environmental, social, and governance (ESG) score plays two roles: 1) providing information about firm fundamentals and 2) affecting investor preferences. The solution to the investor's portfolio problem is characterized by an ESG-efficient frontier,...

This paper mainly studies goodwill as an intangible asset, and considers that goodwill and sales contain information about enterprise value. The results show that goodwill can predict the future return rate of China's stock market, indicating that investors in China’s stock market underact to...

Although many papers have examined the Saudi stock market, to date none have explored the influence of religiosity on the behavior of stock prices, taking into account the dominance of individual investors. These characteristics distinguish the Saudi stock market from other mature and immature...