Facebook certainly isn't struggling, but Wall Street can't seem to make up its mind. The tech giant reported big earnings on Wednesday, beating analysts' expectations. Fourth-quarter revenue was $1.59 billion—showing 40 percent growth. But after the report, stock of Facebook fell more than 5 percent (it recovered later). Expectations for this quarter are already high, as mobile advertising rises and Facebooks works to become profitable in the mobile era.
big money Brendan Smialowski/AFP/Getty