MTUM is trading at $314.95, down 1.58%, as AI-executive calls to slow frontier-AI development rattled technology shares and renewed concerns about AI valuations and chip demand.

  • Semiconductor stocks were particularly weak: Intel, AMD and NVIDIA fell in premarket trading as investors unwound crowded AI positions.
  • Sector pressure contrasted with a nearly flat broader market; Columbus Day’s low-volume session and closed bond market may have amplified moves.
  • Micron also faced reported competitive pressure from China’s ChangXin Memory Technologies.