Umsatz und Gewinn über den Erwartungen ...
NEW YORK (CNNMoney)
Facebook's fourth-quarter earnings and sales beat Wall Street estimates, but mobile remains Wall Street's top focus -- and investors briefly freaked out when mobile user growth wasn't as robust as last quarter.
Shares of Facebook (FB) plunged as much as 10% in after-hours trading, but recovered to a more modest 4% drop. The number of monthly active users on Facebook's mobile site and apps grew 57% over the year to 680 million. Still, that wasn't as strong as the 61% over-the-year jump Facebook had in the third quarter.