B · Normal
[U.S. optical communications sector fell before the opening, with Corning and Marvell Technology falling more than 3%] On September 28, the optical communications sector of the United States fell before the opening, with Corning, Coherent, and Marvell Technology falling more than 3%, Lumentum falling more than 2%, and Ciena falling nearly 2%.
U.S. stock trends 🕐 2026-09-28 16:05

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