Key Points
- Major indices declined Monday: Nasdaq down 1.3%, Dow off 256 points, S&P 500 lost 0.8%
- Dario Amodei, Anthropic’s CEO, released an extensive 3,800-word essay advocating for reduced speed in AI advancement
- Sam Altman of OpenAI and Elon Musk expressed agreement with Amodei’s perspective
- OpenAI postponed its public debut until 2027 citing safety considerations; Anthropic maintains fall Nasdaq listing plans
- Crude oil climbed toward $108 following Saudi Arabia’s pipeline closure, intensifying market stress
US tech stocks experienced significant declines Monday following public statements from leading AI company executives urging the industry to decelerate artificial intelligence development. The unexpected stance surprised market participants and triggered semiconductor stock losses.
The Nasdaq Composite index retreated 1.3%. The S&P 500 declined 0.8%, while the Dow Jones Industrial Average shed approximately 256 points, representing a 0.49% decrease.

Over the weekend, Dario Amodei, who leads Anthropic, released a comprehensive 3,800-word essay. His central argument advocated for AI companies to reduce the velocity of model improvements, allowing adequate time to address safety considerations.
“We must slow the pace at which we improve the capabilities of AI models,” Amodei stated. He emphasized that advancement would remain rapid, but the additional time should be utilized effectively.
OpenAI’s Sam Altman endorsed Amodei’s viewpoint through a statement on X. Elon Musk similarly expressed his support. This consensus among industry leaders created tension with Wall Street’s growth projections.
Safety Discussion Unsettles Market Sentiment
Investors had anticipated continued rapid AI development momentum. The sudden advocacy for deceleration sparked uncertainty regarding AI companies’ future spending on infrastructure, semiconductors, and data facilities.
Semiconductor manufacturers experienced notable declines. Nvidia shares participated in the wider technology sector retreat. Asian markets saw Samsung decline more than 4%, with SK Hynix posting similar losses.
Some market observers maintained composure. Jeffrey Favuzza, a senior vice president at Jefferies, indicated no definitive evidence suggesting capital expenditure would actually decrease. He pointed out that Amodei’s essay didn’t propose stopping model training entirely.
Mizuho’s Jordan Klein advised investors against overreacting, emphasizing that “actions speak louder than words.” He distinguished between publishing opinions and implementing actual investment reductions.
Public Offering Timelines and Energy Markets Compound Volatility
The developments influenced initial public offering schedules. Altman revealed to Fortune that OpenAI would postpone its market debut to 2027, citing AI safety considerations. Meanwhile, Anthropic continues preparing for its autumn listing and has selected Nasdaq as its trading venue.
Energy markets contributed additional volatility Monday. Brent crude approached $108 per barrel after Saudi Arabia closed a critical pipeline. Persistent Middle Eastern tensions continued elevating energy costs.
Market participants now focus attention on the Federal Reserve. Interest rate increase probability reached 88% after Friday’s inflation report. Fed Chairman Kevin Warsh indicated he wouldn’t provide forward guidance before Wednesday’s policy announcement.
Investors are adopting a wait-and-see approach, reducing positions until greater certainty emerges.


