GOLDMAN SACHS: Here's how to make a killing this earnings season

Scott Olson / Getty Images You'd think that investors would have trading on corporate earnings down to a science by now. Think again, says Goldman Sachs. Investors are frequently ill-positioned for the preannouncements companies often make leading up to their scheduled earnings releases, Katherine Fogertey and the Goldman derivatives team wrote in a client note on Thursday. They've gleaned this information from the options market. While traders are braced for increased volatility during the peri...