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Tech megacaps lose $770 billion in value as Nasdaq plunges 3.6%
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.
Kevin Stankiewicz | CNBC
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.”
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.
In late September, Nvidia, which makes graphics processing units for training AI models, became the first company to reach a market cap of $4.5 trillion. Nvidia alone saw its market capitalization decline by nearly $229 billion on Friday. Nvidia was down another 1% in extended trading following Trump’s post.
OpenAI counts on Nvidia’s GPUs from a series of cloud suppliers, including Microsoft. OpenAI is only seeing rising demand.
In September it introduced the Sora 2 video creation app, and this week the company said it now has over 800 million weekly users. But Microsoft must buy infrastructure to operate its cloud data centers. Microsoft’s market cap dropped by $85 billion on Friday.
The sell-off wiped out Amazon’s gains for the year. That stock is now down 2% so far in 2025. It competes with Microsoft to rent out GPUs from its cloud data centers, but it doesn’t have major business with OpenAI. The online retailer is now worth $121 billion less than it was on Thursday.
“There continues to be a lot of noise about the impact that tariffs will have on retail prices and consumption,” Amazon CEO Andy Jassy told analysts in July. “Much of it thus far has been wrong and misreported. As we said before, it’s impossible to know what will happen.”
Tesla, which introduced lower-priced vehicles on Tuesday, saw its market capitalization sink by $71 billion.
The automaker reports third-quarter results on Oct. 22, with Microsoft earnings scheduled for the following week. Nvidia reports in November.
Google parent Alphabet and Facebook owner Meta fell 2% and almost 4%, respectively.
WATCH: Pres. Trump: Calculating massive increase of tariffs on Chinese products into U.S.
