Corning rose 8.61%, while Coherent, Lumentum and Applied Optoelectronics gained more than 9%, according to MSX.COM data cited by Odaily.
U.S. optical communications stocks extended their gains in premarket trading, with the sector's advance continuing to widen. Corning rose 8.61%, Coherent climbed 13.35%, Lumentum gained 9.89%, and Applied Optoelectronics jumped 13.84%, according to MSX.COM data cited by Odaily.