Chip stocks sink as AI slowdown calls hit Broadcom and Nvidia; semis gauge down 5.9%

On September 14, 2026 a rout in large chip stocks, including Nvidia and Broadcom, pushed a semiconductor gauge down 5.9%. The selloff followed a call from Anthropic CEO Dario Amodei for AI developers to slow the pace of frontier AI development, which OpenAI's Sam Altman and xAI's Elon Musk endorsed. Oil above $105 Brent also weighed on markets. The article gives no individual move for Broadcom.

• Semiconductor gauge down 5.9% on September 14, 2026
• Trigger: Amodei's call to slow frontier AI development; Altman and Musk endorsed it
• Brent crude above $105 added to pressure on markets