Yellen says investors should be very careful with…

Outgoing Federal Reserve Chair Janet Yellen holds a news conference after a two-day Federal Open Market Committee (FOMC) meeting in Washington, U.S. December 13, 2017.Jonathan Ernst | ReutersTreasury Secretary Janet Yellen told CNBC on Thursday…

Bill Gates likens GameStop frenzy to gambling, says…

Bill Gates told CNBC the Reddit-fueled trading mania in GameStop and other stocks was reminiscent of betting at a casino and not investing."People enjoy gambling. Sadly, it's a zero-sum game," the billionaire philanthropist told CNBC's…