ASML shares fell 6.1% by 2:29 a.m. ET on Sept. 14, 2026, after AI executives led by Anthropic's Dario Amodei called for slower development of frontier models.
The decline outpaced the broader market -- the S&P 500 was down 0.3% and the Nasdaq Composite 0.2% over the same stretch.
ASML makes the chip-manufacturing equipment used to fabricate AI processors, so a slower AI build-out threatens equipment orders if chipmakers scale back capacity.
ASML Holding (NASDAQ: ASML) stock fell on Monday after leading AI executives from around the industry called for slowing the development of its most advanced models. As of 2:29 p.m. ET on Sept. 14, 2026, ASML shares were down 6.2%, while the S&P 500 and Nasdaq Composite were down 0.3% and 0.2%, respectively.
The CEO of Anthropic, Dario Amodei, called for a slowdown in the development of AI in an essay posted to X. He laid out his concerns over the rapid pace of the advanced technology, saying the industry must collaborate to ensure that its capabilities don't run ahead of our ability to understand and control it.
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Amodei proposed a series of measures ranging from embedding safety monitors in AI labs to international agreements "in which participating governments agree to substantially limit the overall rate of AI development." He acknowledges that any steps taken would "not be easy" but that "we owe it to humanity to try."
ASML makes the advanced chip-manufacturing equipment used to fabricate the powerful semiconductors that run AI models. If pacing their development reduces model training or data-center construction, chipmakers may need less capacity. That could mean fewer ASML systems.
Still, I think today's reaction is overblown. ASML is still a solid addition to a well-balanced portfolio.
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Johnny Rice has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends ASML and Alphabet. The Motley Fool has a disclosure policy.