Ultra Clean Holdings is trading 10.21% lower at $48.08, amid reported semiconductor-equipment weakness following Lam Research’s outlook; no company-specific announcement explaining the drop was identified.
- A premarket report had shares down 5.21% at $49.50, citing Lam’s supply constraints and expected significant decline in China revenue.
- Yahoo Finance also reported Lam’s outlook. Technology shares were under pressure, but SOXX was up 2.55%, making the sector explanation less certain.