COHH is trading at $6.39, up 5.16% before the August 21, 2026 open, with the move appearing primarily driven by a modest rebound in U.S. equity and Nasdaq futures after the August 20 selloff.
- The move appears driven by the rebound rather than fresh Coherent-specific news.
- Elevated Treasury yields remain a counterforce: the 10-year yield was around 4.7%, while the 30-year yield remained near 5.25%, pressuring growth-stock valuations.