Corning reports 44% growth in third-quarter optical-communications sales

Corning (GLW) reported third-quarter results on October 27, 2026, with optical-communications sales rising 44% from a year earlier to $2.38 billion. This business supplies materials such as optical fiber, which carries data using light; coverage linked strong demand to the AI infrastructure buildout.^[1][2]

Company-wide core sales rose 19% to $5.08 billion, and core earnings per share reached $0.91, above analysts' $0.89 estimate. “Core” refers to the company's adjusted performance measures.^[1][3] Corning expects AI demand to support adjusted earnings in the fourth quarter as well.^[2]

AI data centers need fast connections to move data between servers, so expansion drives purchases of fiber and related networking materials. Corning's 44% optical-sales growth shows that spending reaching supplier revenue; reported margin expansion also indicates that growth is feeding through to profitability.^[1][2][4]

That provides a positive demand benchmark for other optical-networking suppliers. Their ability to benefit similarly depends on how widely their products are used in AI data-center projects and whether they can control costs as deliveries increase.^[2][4]

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