CNBC Daily Open: Markets rocked as Nvidia slumps and Trump confirms tariffs

Nvidia shares plunged 8.5% on Thursday, wiping out $273 billion in value and giving the company a market capitalization of $2.94 trillion. That makes Apple the only member of the $3 trillion club. So far in 2025, Nvidia shares have lost 10% of their value, as the company faces investor concerns…