Onto Innovation is trading at $319.00, up +4.70%, as the move appears aligned with renewed strength in semiconductor stocks and optimism around AI-driven chip demand.

  • Major U.S. indices are modestly higher, while semiconductor shares are strong in pre-market trading.
  • Recent coverage described sector rotation into chip-equipment names and optimism about advanced-packaging demand.
  • No clear new Onto Innovation announcement was found for September 30.