On June 29, Corning rose 3.94% in regular trading, trading at approximately $228.85/share, with turnover of $1.3 billion.

On the news front, Corning officially launched its next-generation glass optical interconnect component GlassBridge on June 28 and released a detailed technical overview. The component utilizes waveguides embedded within glass to directly connect photonic integrated circuits (PICs) with optical fibers, addressing the multi-fold dimensional mismatch between the two, targeting coupling loss below 2dB. It is specifically designed for co-packaged optics (CPO) and glass-substrate semiconductor packaging architectures.

Corning has previously signed multi-billion-dollar long-term supply agreements with hyperscale cloud operators including Meta, NVIDIA, and Amazon. The market views this as a signal that the value center of next-generation AI optical interconnects is shifting from midstream optical components toward specialty glass materials, continuing to boost the company's valuation expectations. Wall Street analysts note that while near-term impact on existing CPO solutions remains limited over 1-2 years, GlassBridge could bring disruptive substitution pressure to traditional fiber array unit manufacturers upon commercialization between 2028 and 2030.

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