Facebook's quarterly profit, revenue beat estimates

Facebook Inc reported higher-than-expected quarterly profit and revenue as the world's largest social network continues to benefit from its aggressive push into mobiles and video. Facebook's shares were up 2.7 percent at $136.78 after the bell on Wednesday. Mobile ad revenue accounted for 84 percent of company's total advertising revenue of $8.63 billion in the fourth quarter ended Dec. 31, compared with 80 percent a year earlier.