A trader works during the Fed rate announcement on the floor at the New York Stock Exchange (NYSE) in New York, U.S., March 20, 2019. Reuters/Brendan McDermid Short sellers have lost more than $13 billion betting against a handful of artificial intelligence stocks this year. Shares of Nvidia have soared more than 150% in 2023 and sparked an AI frenzy after its bullish forecast. These are the five AI stocks that have caused a world of pain for bearish investors. The frenzy for stocks with exposure to artificial intelligence have created dizzying gains for investors this year, as well as...