Facebook - Earnings - Money - 001

Facebook just reported its fourth quarter 2014 earnings, beating Wall Street expectations with 31 cents earnings per share (EPS) and revenue of $2.59 billion. Wall Street was calling for an EPS of 27 cents on revenue of $2.33 billion to $2.35 billion. The key figure here has been mobile growth, and that's been the case ever since Facebook's IPO when investors were looking for new areas to generate revenue.

Mobile monthly active users totaled 945 million people, up 39 percent over the same quarter last year. By comparison, monthly active users in total came in at 1.23 billion people, up 16 percent year-on-year. Mobile daily active users came in at 556 million people, also up 49 percent year-on-year. Mobile ad revenue represented 53 percent of all of Facebook's revenue for the year, which totaled $7.87. That figure itself was up 55 percent, again showing the power of Facebook's mobile ad opportunity. The company has increased its presence in the space through new ads on Instagram and more targeted advertising in the mobile News Feed.

"It was a great end to the year for Facebook," said Mark Zuckerberg, Facebook founder and CEO. "We're looking forward to our next decade and to helping connect the rest of the world." Zuckerberg has so far not addressed one concern: that teens are leaving the platform. At the rate of its mobile growth, though, perhaps older audiences are enough to stave off any real worry in that arena.