Nvidia shares were under pressure ahead of Monday’s stock market open after China’s top regulatory authority said the U.S. chipmaker has violated the country’s antitrust rules. The State Administration for Market Regulation announced that following a preliminary investigation,

MADRID (Reuters) -Delegations from the U.S. and China were set to continue their talks in Madrid into a second day on Monday over trade tensions and an imminent deadline for Chinese divestment from the short-video app TikTok.