Onto Innovation is trading 4% down at $217.22, amid renewed semiconductor pressure as investors reassess AI-infrastructure spending.
- European chipmakers and equipment suppliers also fell. Recent concerns about the cost and financing of AI investment have weighed on chip stocks, keeping the sector volatile.
- Reuters described Monday’s rebound as following a bruising sell-off, underscoring sharp sentiment reversals. No clear company-specific catalyst was found for the October 20 move.