COHH is trading 3.05% higher in after-hours trading on September 16, 2026, as AI-related optical and datacenter infrastructure stocks continue to strengthen.
- COHH tracks 2x Coherent’s daily performance; COHR was reported up as much as 6.08% on September 16 amid resilient AI infrastructure demand.
- The Federal Reserve’s 25-basis-point hike and elevated yields remain risks, while broader technology sentiment was modestly positive.
- The move is best attributed to a sector-led rebound, with daily resets amplifying COHH’s 13.56% regular-session gain.