COHR ▲ +2.4% - Coherent Corp. $COHR - Coherent Expands Pluggable Optical Line Systems Portfolio with Full C-Band Amplification to Enable AI Datacenter Networks Coherent announced an expansion of its pluggable optical line systems portfolio to include full C-Band amplification capabilities designed for AI datacenter networks, driving the stock up 2.4%. The addition addresses growing demand for higher-capacity optical infrastructure needed to support the rapid scaling of artificial intelligence and machine learning workloads in data centers. 17-SEP-2026 04:05 PM ET