Wall Street falls as Nvidia AI optimism fades

America’s top stock market indexes have slumped after initially surging earlier in the session.Mr Dalio said a “tightening of monetary policy” or another “need for cash” could end up causing the bubble to burst.“We are in that territory but don’t have the pricking of the bubble yet.” he added. “A lot can go up before the bubble bursts.”“Don’t sell just because there’s a bubble,” Mr Dalio told investors, as he suggested stock markets could still rise.However, the billionaire hedge fund manager said investors ...