Corning stock after-hours at EUR 140.23: plus 5.56 percent

Corning stock was at EUR 140.23 after-hours at 10:31 p.m. CEST on September 29, 2026, up 5.56 percent versus the Lang & Schwarz prior close. Corning and AT&T announced a fiber agreement.

Corning stock was at EUR 140.23 after-hours at 10:31 p.m. CEST on September 29, 2026, up 5.56 percent versus the Lang & Schwarz prior close of EUR 132.85.

Multi-year fiber agreement

Corning Incorporated and AT&T entered into a multi-year agreement valued at more than $3 billion. Under the agreement, Corning will supply the fiber and cable AT&T needs to expand its network and provide broadband connectivity as data demand grows, according to Corning.

AT&T said the agreement supports its commitment to bring fast, reliable internet to 60 million Americans by the end of 2030. The companies also said Corning’s U.S. workforce will produce the fiber while AT&T technicians build and maintain the networks, according to AT&T News.