COHH is trading 5.5% down on September 2, 2026 as renewed U.S.-Iran hostilities push Brent crude above $95, lifting inflation concerns and Treasury yields.

  • Risk aversion hit growth-sensitive technology and semiconductor shares; the Philadelphia Semiconductor Index fell 2.14%, and Nvidia, AMD, and Micron declined.
  • COHH targets 200% of Coherent’s daily return, amplifying weakness in COHR and the broader chip complex.
  • No separate COHR-specific catalyst is evident; macro risk aversion, higher rates, and semiconductor weakness drove the move.