Jensen Huang, CEO of Nvidia, speaking with CNBC's Jim Cramer during a CNBC Investing Club with Jim Cramer event at the New York Stock Exchange on Oct. 7th, 2025.
Shares of Amazon , Nvidia and Tesla each dropped around 5% on Friday, as tech's megacaps lost $770 billion in market cap, following President Donald Trump's threats for increased tariffs on Chinese goods.
With tech's trillion-dollar companies occupying an increasingly large slice of the U.S. market, their declines send the Nasdaq down 3.6% and the S&P 500 down 2.7%. For both indexes, it was the worst day since April, when Trump said he would slap "reciprocal" duties on U.S. trading partners.
After market close on Friday, Trump declared in a social media post that the U.S. would impose a 100% tariff on China and on Nov. 1 it would apply export controls "on any and all critical software."
Amazon, Nvidia and Tesla all slipped about 2% in extended trading following the post.
The president's latest threats are disrupting, at least briefly, what had been a sustained rally in tech, built on hundreds of billions of dollars in planned spending on artificial intelligence infrastructure.