🔴 Ultra Clean Holdings is trading 4.45% down in after-hours trading — no company-specific catalyst identified

Ultra Clean Holdings is trading 4.45% down now at $88.78 after closing at $92.91 on August 13, 2026; the after-hours decline’s catalyst remains unclear.

• The regular-session gain followed a semiconductor-sector rally as AI-demand concerns eased.
• The Philadelphia Semiconductor Index rose 2.5% on August 12, supported by stronger AI infrastructure earnings and spending plans.
• No new company-specific announcement or earnings release was found for August 13.