US-listed optical-communications stocks opened lower; Ciena fell nearly 16%
after reporting earnings, POET dropped about 7%, Lumentum fell ~6%, Marvell and
Nokia were off more than 5%, and Corning declined over 4%.
2026-06-04
US-listed optical-communications stocks opened lower; Ciena fell nearly 16%
after reporting earnings, POET dropped about 7%, Lumentum fell ~6%, Marvell and
Nokia were off more than 5%, and Corning declined over 4%.