Coherent is trading at $249.10, down 11.36%, amid a broader AI and semiconductor sell-off. - Investors are reassessing AI-infrastructure spending and funding risks; optical peers have also fallen. - Hotter-than-expected U.S. inflation revived rate-hike concerns and borrowing-cost worries for growth and technology stocks. - No clear company-specific catalyst was identified. Coherent announced its next earnings date, but not results or a guidance change.