AI stocks – A fresh sell-off in high-flying artificial-intelligence chip and memory shares pulled major U.S. indexes lower on Tuesday, reversing early gains as investors questioned whether the AI rally needed only a shake-out or is turning into a longer downturn.
For a moment on Tuesday, Wall Street looked like it might brush off the last round of panic. The S&P 500 was up about 1% early, and the day seemed to be tilting back toward its latest celebration: an all-time high set a week ago.
By 1 p.m. Eastern time, the mood had flipped. The S&P 500 sank 1.7%, trading farther from its record, while the Nasdaq composite slid 2.9%. The Dow Jones Industrial Average was down 408 points, or 0.8%.
The reversal tracked directly to one group of stocks that had been leading the market’s AI boom: companies selling computer chips, memory, and other building blocks. Shares that opened in the green quickly broke into losses as early momentum faded into a more crowded exit.
Micron Technology was the clearest example of how sharp the swing became. After jumping 4.2% at the start of the session, it turned and fell 7.6%. The same pattern sat behind the stock’s recent volatility: the day after it soared 9.9%, it plunged 13.3% two days before Tuesday.
The selling also spread across other AI winners. Marvell Technology dropped 13.3%, and Advanced Micro Devices sank 8.7% after both erased early-morning gains. Nvidia fell 3.1%. a key drag because the chip maker is the largest company on the S&P 500 by value and one of the most influential moves on the index.
That pressure landed at a moment when some investors are already debating how much optimism is left to squeeze out of the rally. Micron has tripled so far this year, drawing criticism that the move may have gone too far, too fast. After last week’s industrywide sell-off. the practical question traders now face is whether Tuesday’s drop is simply another shake-out to clear out excess enthusiasm—or the start of a longer downturn for AI stocks broadly.
Even as AI weakness weighed on the tape, other parts of the market kept finding reasons to move higher. More stocks in the S&P 500 rose than fell despite the sharp decline in the overall index. J.M. Smucker jumped 11.2% after reporting a stronger profit for the latest quarter than analysts expected. The company behind Folgers and Hostess benefited from higher prices it charged for coffee and sweet baked goods.
That optimism in consumer stocks came alongside deal-driven strength in biotech. Nuvalent surged 39.2% after GSK agreed to buy the biotech company for $10.6 billion. GSK shares that trade in New York rose 0.9%.
Outside the stock market’s AI universe. the day also carried a separate set of anxieties tied to energy. rates. and inflation. The weakness for AI stocks was partly cushioned by easing oil prices: Brent crude fell 2.7% to $91.66. Oil had been swinging on hopes and setbacks around whether the United States and Iran can reach a deal to reopen the Strait of Hormuz. which would allow oil tankers to resume delivering crude from the Persian Gulf to customers worldwide.
But the market’s nerves weren’t only about diplomacy. Oil pared losses after President Donald Trump said Iran was responsible for downing an American military helicopter near the Strait of Hormuz, and that the United States “must” respond to the attack.
High oil prices tied to the conflict with Iran have already contributed to a painful acceleration of inflation for U.S. shoppers. They have also pushed bond yields higher worldwide, adding pressure to stock prices. While Treasury yields eased slightly Tuesday as oil slipped. the 10-year Treasury yield fell to 4.54% from 4.56% late Monday—still above its 3.97% level from just before the war with Iran.
Investors are also watching upcoming inflation data. The next monthly updates on U.S. inflation will arrive later in the week, with consumer prices coming Wednesday and wholesale prices coming Thursday.
With inflation elevated and the U.S. job market seen as strong. Wall Street traders largely expect the Federal Reserve will need to raise its main interest rate at least once by the end of this year. Higher rates could restrain inflation, but they also threaten to slow parts of the economy and weigh on stock valuations.
That matters for the AI build-out too. The average long-term U.S. mortgage rate has climbed recently to its highest level in nine months, and borrowing costs can discourage construction plans—among them the building of AI data centers that are fueling growth.
While U.S. stocks struggled, markets abroad moved in step with shifting expectations. Indexes dipped in Europe after bigger moves in Asia.
In South Korea, the Kospi jumped 8.2% and nearly recovered Monday’s plunge of 8.3%. The index has been tied closely to the performance of big tech names like SK Hynix and Samsung Electronics.
Back in the U.S. the AI storyline isn’t only about prices—it is also about companies looking to cash in on demand. Several big-name AI firms are racing to list their stocks on a U.S. exchange at high prices. OpenAI, the maker of ChatGPT, said Monday it filed confidential paperwork with U.S. regulators for an initial public offering. SpaceX’s IPO could happen later this week.
AI stocks Wall Street S&P 500 Nasdaq Dow Micron Technology Nvidia Marvell Technology Advanced Micro Devices OpenAI IPO SpaceX IPO oil prices Brent crude Strait of Hormuz inflation Federal Reserve Treasury yields