Based on full-displayed limit order book data from the electronic trading system Xetra, I study traders' tendency to herd in their decisions to buy or to sell securities around the time of news release. In more detail, I study the impact of company-specific, real-time messages routed by Reuters...

Using a large dataset of news releases, we study instances of investors' mistaken reaction, or misreaction, to news. We define misreaction as stock prices moving in the direction opposite to the news when it is released. We find that news tone predicts returns in the cross-section only upon the...