Coherent is trading 6.17% down at $334.07 after releasing fiscal fourth-quarter and full-year 2026 results following the August 12, 2026 market close.
- Fourth-quarter revenue reached $2.05 billion, beating estimates, with record results, margin expansion, and strong AI-driven networking demand.
- The broader market was modestly higher, so market-wide weakness does not explain the decline.
- The earnings release is the clearest catalyst, but the specific investor concern was not identified in available coverage.