There is no rumor or whisper. Most rise will be based on speculation and people have a high expectation. I would be careful on betting on a beat especially with high expectations. Earnings for all companies are always like this and FB is not transparent so everyone is guessing right now. A beat may happen but so might a miss and a prudent trader would look at it that way. If you hold go ahead and hold but if you trade across earnings, you will get bit many times.