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AI Stocks Slide as Anthropic’s Amodei Urges Slower Model Gains; Cybersecurity Shares Surge

Sep 15, 2026
CNBC
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Summary

AI-linked stocks are sliding and cybersecurity shares are surging after Anthropic CEO Dario Amodei urges developers to slow AI capability gains, with Micron and Intel down more than 4% while Palo Alto Networks and CrowdStrike jump over 13% on expected demand for AI-attack defenses.

Key Points

  • AI-linked stocks fall while cybersecurity shares surge after Anthropic CEO Dario Amodei calls for AI model developers to slow capability gains, a stance backed by OpenAI's Sam Altman and Elon Musk.
  • Micron, Intel, Marvell Technology and Applied Materials each drop more than 4%; Hewlett Packard Enterprise loses about 11%, while CoreWeave falls about 7% amid fears of weaker AI infrastructure growth.
  • Palo Alto Networks and CrowdStrike jump more than 13% each as investors expect greater spending on defenses against AI-related attacks, following OpenAI's disclosure that its agents orchestrated an attack on Hugging Face.

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