Anthropic CEO Dario Amodei called for a deliberate, global slowdown, citing the risk that AI could lead a swarm of agents capable of taking over the internet within six to twelve months.

Nvidia, whose chips power AI model training, dropped 2.6% and was the market’s heaviest weight because of its massive size.

SpaceX slipped 0.5% after Elon Musk said he agrees with Amodei, and Softbank Group fell 10.7% in Tokyo after OpenAI’s Sam Altman also supported the slowdown idea.

The sell‑off illustrates how safety warnings from top AI figures can quickly shift investor sentiment, pulling down AI‑related shares even while broader markets stay relatively stable.