This paper documents the motivation, the construction, and the profitability of an investment strategy based on investor attention in the options market. Using the option volume after a one-week dormant period as a proxy for investor attention, we show that heightened investor attention after...

Using a broad sample of merger announcements, I find unusual option volume right before these announcements, an abnormality which provides new information about the pre-merger stock price runup beyond what is incorporated in the stock market. I also find that there exists abnormal option pricing...

This paper investigates insider trading before scheduled versus unscheduled corporate announcements to explore how corporate insiders utilize their private information when the amount of liquidity trading is varying over time in a predictable way. Using a comprehensive insider trading database...

Using a broad sample of merger announcements, I find unusual option volume right before these announcements. The abnormal option volume provides new information about the pre-merger stock price runup beyond what is incorporated in the stock market. I also find that there exists abnormal option...

Using a comprehensive sample of Chinese seasoned equity offerings, we compare three major equity flotation methods employed by listed firms in China: public offering, rights offering, and private placements. The dominant flotation method changed significantly around 2005. We examine the...

Using a broad sample of earnings announcements, we find that option call and put implied volatilities become increasingly misaligned as the earnings announcement dates (EAD) get closer. The percentage deviation between call and put implied volatilities increases monotonically in the one-month...

We examine the central prediction of the pecking order theory of financing among firms in two distinct life cycle stages, namely growth and maturity. In general, we find that firms in both stages follow the pecking order. More specifically, we find that within a life cycle stage and after...

Firm life-cycle concept has been used in a variety of disciplines, including economics, finance and accounting, and also in the real-world investment. This paper develops a new methodology of measuring firm life-cycle stages. By comparing a firm's status at each point of its development with its...

We design modified value investing strategies in emerging equity markets by comparing a country's value weight with its market capitalization weight among a group of emerging countries. These strategies can be easily tested and implemented by using various country index funds. Our proposed...