U.S. optical-communications sector rallied: Lumentum up 5%, Coherent up 6%, MARVELL (MRVL.O) and Corning (GLW.N) up about 5%.

2026-08-12

U.S. optical-communications sector rallied: Lumentum up 5%, Coherent up 6%, MARVELL (MRVL.O) and Corning (GLW.N) up about 5%.