Onto Innovation is trading 10.82% lower at $180.49, with no company-specific announcement explaining the drop. - The company is scheduled to report third-quarter results on November 9. - Semiconductor-sector pressure is tied to election-driven concerns about tighter data-center permitting and uncertainty over future AI infrastructure demand. - MarketWatch reported losses among several chip stocks, but this backdrop does not establish the cause of Onto Innovation’s larger move.