https://www.cnbc.com/2017/11/02/wall-street-grows-wary-of-facebooks-growing-costs-to-combat-fake-news.html >Wall Street largely gushed over Facebook's comfortable earnings beat, but analysts are keeping a wary eye on the social network's growing investments in security and content. >Shares of Facebook fell 1.33 percent in premarket trading Thursday, despite its much better-than-expected results Wednesday after the bell. The stock closed at a record Wednesday, up 59 percent for the year.