I risultati del trimestre di Facebook superano le previsioni degli analisti

(Reuters) – Facebook Inc’s (FB.O) revenue grew 49 percent in the fourth quarter, as strength in mobile advertising helped the world’s largest Internet social network beat Wall Street’s target.
Shares of Facebook edged up less than 1 percent to $76.80 in after hours trading.
The company said on Wednesday it ended 2014 with 1.39 billion monthly users, with 86 percent of them accessing its service on smartphones and other mobile devices.
Mobile ads accounted for 69 percent of advertising revenue in the fourth quarter, or $2.48 billion.