Onto Innovation is trading 4.47% up at $280 after a broad semiconductor-sector rally led by Asian chipmakers.

  • South Korea’s KOSPI rose 4.61% and Japan’s Nikkei gained 2.12%, supported by renewed optimism around AI infrastructure and memory-chip demand.
  • No clear company-specific announcement was identified on September 8, 2026; the move appears sector-driven despite the broader U.S. market being modestly weaker.