
Wall St tumbles, Nvidia drops after new US chip export curbs
By Lisa Pauline Mattackal and Purvi Agarwal(Reuters) - Wall Street’s main indexes slid on Wednesday, with chipmakers leading declines as Nvidia (NASDAQ:NVDA) warned of steep charges from new U.S. curbs on its chip exports to China, making it one of the biggest casualties of the trade war between the two countries.Global chip stocks took a battering as U.S. President Donald Trump’s shifting tra ...