U.S. stocks closed: The S&P 500 index set a new closing high, and the optical communication sector surged.

The three major U.S. stock indexes all closed higher, with the Dow Jones up 0.28%, the S&P 500 up 0.62%, and the Nasdaq up 1.3%. Among them, the S&P 500 index set a new closing high. The U.S. optical communications sector saw significant gains, with Coherent rising over 13%, Credo up over 8%, Lumentum increasing over 6%, Corning gaining over 5%, and Marvell Technology up over 3%.