US Optical Communications Stocks Fall on Aug 6, 2026; Coherent Down Over 3%
US optical communications stocks declined in early trading on August 6, 2026. Coherent led the drop with shares falling more than 3%, while Lumentum and Marvell Technology each lost over 2%. Corning also slipped, down more than 1%. The sector-wide weakness reflected broad selling pressure across key optical component makers at the market open.
US optical communications stocks fell in early trading on August 6, 2026. Coherent shares dropped more than 3%, while Lumentum and Marvell Technology each declined over 2%, and Corning fell more than 1%.