AI Stocks Slide as Amodei Warns Frontier Race Needs a Brake

Nvidia and Broadcom each fell about 3% early Monday, while Intel and Micron dropped even more sharply, as investors confronted an uncomfortable possibility: the artificial-intelligence boom may be running faster than its safeguards, and perhaps faster than its economics.

The trigger was a 3,800-word essay published Saturday by Anthropic Chief Executive Dario Amodei. In “We Must Pace the Frontier,” Amodei argued that AI companies should deliberately slow the advance of their most capable models so safety work, oversight and cybersecurity defenses can catch up.

His warning was unusually direct. Amodei said AI progress had accelerated drastically during the summer, partly because models were becoming better at helping researchers build the next generation of systems. He also warned that an AI-driven swarm could, within six to 12 months, seize control of much of the internet through a persistent botnet and cause hundreds of billions of dollars in damage.

That is a nightmare scenario for policymakers. For chip investors, the immediate concern was more mundane: if frontier labs pause or stretch out new model releases, they may postpone some of the enormous hardware purchases that have powered Nvidia, Broadcom, AMD, Micron and other suppliers.

The market reaction showed how tightly those stocks are linked to a single spending narrative. Nvidia lost 3.4% on Monday, its biggest drag on the S&P 500, while the Nasdaq Composite fell 0.6%, according to The Associated Press. The declines eased from the premarket rout, suggesting traders treated the essay as a sentiment shock rather than proof that current AI demand had collapsed.

Amodei’s argument gained unusual support from inside the technology industry. OpenAI CEO Sam Altman endorsed it, and SpaceX CEO Elon Musk said Amodei was right. That alignment made the warning harder for investors to dismiss as a lone executive’s public-relations maneuver.

Still, the essay did not call for abandoning AI. Amodei proposed pacing the frontier while strengthening testing, independent verification and government oversight. Wall Street’s rebound suggests investors are betting the infrastructure buildout will continue, even if the industry’s most powerful executives are now openly arguing over how quickly it should proceed.