U.S.-listed optical communications stocks extended their gains in early trading, led by Ciena, which rose more than 9%, according to MSX.COM data cited by Odaily Planet Daily. Marvell Technology and Corning each gained more than 7%, while Coherent advanced nearly 7%. The move followed a prior session in which Lumentum Holdings closed 9.59% higher and Coherent rose 6.92%, as investors favored optical communications suppliers with visible AI infrastructure demand despite a Federal Reserve rate hike, a 0.45% S&P 500 decline and a 10-year Treasury yield above 5%.