Rumors can be classified into two types, according to whether they can credibly predict impending events or not. The analysis of takeover rumors of publically traded US companies from 1990 to 2008 shows that these two types of rumors can be statistically distinguished by returns of rumored...

This study investigates the relationship between the volatility of stock market indexes and the trading volumes of their Exchange Traded Funds (ETFs). Using both OLS and GARCH approaches we demonstrate that the contemporaneous trading volume of S&P 500 ETFs is a key determinant of S&P 500...

Rumors can be classified into two types, according to whether they can credibly predict impending events or not. The analysis of takeover rumors of publicly traded US companies from 1990 to 2008 shows that these two types of rumors can be statistically distinguished by returns of rumored...