Ultra Clean Holdings is trading 6.90% down at $86.50 after closing at $92.91 on August 13, 2026; no company-specific announcement dated August 14, 2026 was identified.
- The August 3 earnings release reported strong results and upbeat third-quarter guidance, so it does not explain this morning’s decline.
- Broader semiconductor weakness may be contributing, but available market context does not confirm a direct cause.