Nvidia CEO Jensen Huang delivers the keynote for the Nvidia GPU Technology Conference at the SAP Center in San Jose, California, on March 18, 2025.Brittany Hosea-small | ReutersTechnology stocks dropped Wednesday, led by a 7% plunge in Nvidia, as the chipmaking sector signaled that President Donald Trump's sweeping tariff plans could hamper semiconductor demand.Nvidia revealed in a filing Tuesday that it take a $5.5 billion charge in the first quarter tied to exporting its H20 graphics processin...