MSX.COM data showed broad losses across the sector, with Marvell Technology down more than 6% and Lumentum, Coherent, and Credo each falling more than 5%.
U.S. optical communications stocks opened lower and deepened their losses, led by Corning, which fell more than 8%. MSX.COM data also showed Marvell Technology down more than 6%, while Lumentum, Coherent, and Credo each declined more than 5%, pointing to broad weakness across the sector at the start of trading.