On October 9, 2026, the three major U.S. stock indices experienced a collective upward surge at the opening bell, with the optical communication sector emerging as a standout performer. Notably, Lumentum's stock soared by over 7%, fueled by the company's CEO's revelation that its optical component production capacity is fully booked until early 2029. Furthermore, the CEO highlighted that the demand gap for certain products is expected to persist well into next year and extend through 2028.

Capitalizing on this positive momentum, Coherent's stock climbed more than 5%. Meanwhile, other optical communication companies, including Corning, Ciena, and Credo, also witnessed gains exceeding 2%. In addition to these developments, SpaceX's stock rose by over 2% following the company's announcement of its acquisition of a nationwide low-band spectrum asset package in the United States. This strategic move is poised to propel SpaceX's Starlink service deeper into the U.S. telecommunications market.