Indexes drop as Fed's Powell says growth appears to be slowing; Nvidia tumbles
NEW YORK (Reuters) -U.S. stocks ended sharply lower on Wednesday as Nvidia warned about steep charges from new U.S. curbs on its chip exports to China and Federal Reserve Chair Jerome Powell said U.S. economic growth appears to be slowing. Powell, in remarks for the Economic Club of Chicago, said larger-than-expected tariffs likely mean higher inflation and slower growth. The Fed chair's afternoon comments sparked further selling in stocks, which had already been under pressure from a sharp drop in shares of Nvidia and other chipmakers.