Teradyne is trading at $359.98 (-5.20%) in pre-market as semiconductor stocks fall 4.05%, making sector sentiment the clearest explanation.

  • AI executives called for slower frontier-model development, raising concerns about future infrastructure spending.
  • Broader risk-off pressure reflects higher oil prices, geopolitical tensions, and rate worries.
  • No fresh company-specific announcement was identified for September 14, 2026.