Corning Beats Guidance: Q3 Core Sales Up 19% to $5.08B, Q4 Outlook $5.2-5.3B
GLW sits 71% above its 52-week low of $77.39.
Summary
Corning beat Q3 guidance with core sales up 19% to $5.08B and core EPS up 36% to $0.91, led by 44% Optical Communications growth, and guided Q4 to $5.2-5.3B in core sales and $0.96-$1.00 in core EPS.
Key Events · Earnings and Guidance · GLW
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Q3 Beats Guidance on Optical Strength
Core sales rose 19% year over year to $5.08B and core EPS rose 36% to $0.91, with GAAP EPS of $0.78 up 56%.
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Optical Communications Up 44%, Gen AI Doubles
Optical Communications sales reached $2.38B (+44% YoY) with $532M net income; Enterprise Networks grew 84% and Gen AI product sales grew more than 100% year over year.
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Q4 Outlook: $5.2-5.3B Sales, $0.96-$1.00 EPS
Management guides Q4 core sales to $5.2-5.3B (~19% growth) and core EPS to $0.96-$1.00 (~36% growth), implying no deceleration from Q3.
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Margins Expand, Free Cash Flow $661M
Core gross margin rose 150bps to 40.5% and core operating margin 310bps to 22.7%; adjusted free cash flow was $661M in Q3 and $2.27B through nine months against $545M of quarterly capex.
Analysis · GLW · Manufacturing
Q3 came in above Corning's own guidance, and the Q4 outlook implies no slowdown: core sales of $5.2-5.3B would be roughly 19% growth, with core EPS of $0.96-$1.00 roughly 36% growth. Optical Communications is the engine, with sales up 44% to $2.38B and Gen AI product sales more than doubling year over year — the AI datacenter buildout is now the dominant driver of the whole company. Margins expanded sharply (core gross margin 40.5%, core operating margin 22.7%), and adjusted free cash flow reached $661M in the quarter and $2.27B through nine months, funding heavy capex ($545M in Q3) largely from operations. The soft spot is Solar: sales grew 37%, but the segment posted a $7M net loss as the production ramp ran slower than planned, so the path to the stated $3B+ Solar revenue stream is the item to track. Against the backdrop of the $2.0B at-the-market program launched 2026-09-11, strong cash generation and four new multibillion-dollar customer agreements reduce the urgency to lean on that equity overhang.
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At the time of this filing, GLW was trading at $132.65 on NYSE in the Manufacturing sector, with a market capitalization of approximately $110B. The 52-week trading range was $77.39 to $271.78. This filing was assessed with positive market sentiment and an importance score of 8 out of 10.