Micron, Boeing and Kenvue rise premarket; Nvidia falls

Published 23/09/2025, 12:00
© Reuters

Investing.com -- U.S. stock futures steadied Tuesday at elevated levels, ahead of a speech by Federal Reserve Chair Jerome Powell and the release of key activity data.

Here are some of the biggest premarket U.S. stock movers today:

  • Nvidia (NASDAQ:NVDA) stock fell 0.7% after hitting an intraday record high in the previous session. The AI chip leader agreed to a tie-up with OpenAI to invest up to $100 billion in and supply it with data center chips.

  • Micron Technology (NASDAQ:MU) stock rose 1% ahead of the chip maker’s latest quarterly results, which are set to offer more insight into the trajectory of the AI boom after the close.

  • Boeing (NYSE:BA) stock rose 2.8% after U.S. ambassador to China David Perdue said the U.S. and China are in the final stages of negotiations over a “huge” order from the U.S. aircraft manufacturer.

  • Kenvue (NYSE:KVUE) stock soared 5.7%, bouncing after a record low the day before, even as U.S. President Donald Trump linked its Tylenol drug to autism risk during pregnancy at a White House press conference.

  • Firefly Aerospace (NASDAQ:FLY) stock slumped 11% on the back of its financial results, the first to come out since the rocket maker’s Nasdaq debut in early August. It posted a wider loss and lower-than-expected revenue in its second quarter.

  • Johnson & Johnson (NYSE:JNJ) stock rose 0.8% after Bloomberg reported that the drug maker will withdraw a device to treat acid reflux disease from markets outside the U.S.for commercial reasons.

  • Alvotech (NASDAQ:ALVO) stock rose 4.6% after Deutsche Bank upgraded its stance on the biotech company to “buy” from “hold”, saying the market “is beginning to look less generic.”

  • Vistra Energy (NYSE:VST) stock fell 2.3% after Jefferies downgraded its stance on the power producer to “hold” from “buy”, voicing concerns about the lack of announcement for a data center deal for its Comanche Peak nuclear power plant.

  • CoreWeave (NASDAQ:CRWV) stock rose 3% after Wells Fargo upgraded the cloud computing company to “overweight” from “equal-weight”, saying the “demand signals are growing too strong to ignore.”

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