Corning’s optical business jumps 44% as AI data centers demand more fiber
Corning’s Optical Communications segment posted a 44% year-over-year sales increase to $2.38 billion in the third quarter of 2026, driven by demand for high-density optical fiber used in AI data centers.
Corning reported third-quarter core sales of $5.08 billion, a 19% increase from the same period a year earlier, with core earnings per share reaching $0.91.
The company’s Optical Communications segment was the standout performer, with sales jumping 44% to $2.38 billion, a figure that outpaced the growth of GPU shipments.
Sales in the enterprise networks portion of the Optical Communications segment surged 84%, a growth rate that has outpaced GPU shipment growth and suggests data center designs are becoming more connectivity-intensive.
The 84% jump in enterprise networks is the figure worth watching most closely. If that segment keeps outrunning GPU shipment growth, it would suggest data center designs are becoming more connectivity-intensive over time, not just larger.
Strategic agreements and outlook
Corning has secured multibillion-dollar agreements with Verizon, AT&T, and Nvidia, providing significant revenue visibility and stability amid investor concerns about AI capital spending.
The company guided fourth-quarter core sales to a range of $5.2 billion to $5.3 billion, implying roughly 19% growth, and set longer-term targets of $30 billion in annualized sales by the end of 2028 and $40 billion by 2030.
Corning’s market capitalization has been volatile throughout 2026, having fallen roughly 50% from its June highs, reflecting broader investor unease about whether AI spending will continue at its current pace.
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