U.S. stock markets experienced a significant downturn as artificial intelligence (AI) shares plunged, dragging major indexes into their first consecutive losses in weeks. The S&P 500 fell sharply after reversing early morning gains, ending the day down more than one percent. The Dow Jones Industrial Average and Nasdaq Composite also posted notable declines, with the Nasdaq hit hardest by the tech-heavy sell-off.
Investor sentiment turned cautious following a period of extraordinary growth for AI-related stocks, which surged rapidly but have recently seen steep reversals. Concerns emerged that rapid price increases may have been unsustainable, sparking profit-taking and volatility. Market watchers debated whether this sell-off simply corrects an overheated sector or signals deeper, more prolonged weakness in AI stocks.
Stocks linked to AI hardware and semiconductor production showed particularly wild swings throughout the day. Super Micro Computer plunged sharply after announcing plans to raise a substantial sum through new stock and convertible preferred stock offerings, a move that typically dilutes existing shareholders. Meanwhile, Micron Technology fluctuated between gains and losses amid ongoing market turbulence, despite still posting strong year-to-date gains.
Semiconductor companies, which had initially buoyed the market with strong morning performances, trimmed gains or reversed course by the closing bell. For example, KLA curtailed an early surge to close near flat, while Nvidia, a key driver of the AI boom valued at nearly $5 trillion, experienced one of the heaviest sell-offs among large-cap tech stocks.
Additional market pressure may stem from investors reallocating funds ahead of anticipated initial public offerings by major AI-related companies, adding uncertainty to the trading environment. Rising oil prices also contributed to market unease, following geopolitical tensions with threats of further strikes in the Middle East.