A 175-year-old glassmaker, rewired for AI data centers.
Corning makes specialty glass, ceramics and optical fiber. AI data centers are now the engine: Optical Communications sales rose 32% to $2.07B last quarter, and the upgraded Springboard plan targets a $20B annual sales run rate by the end of 2026 and $40B by 2030. The catch is the cost of getting there, with about $2B of capex this year and a new $2B share-sale program, and a stock that went from $255 to $124 and back to $157 since late June.
Price, last 12 months
Daily closes with the 50-day average. Corning nearly tripled from about $86 a year ago to a $255 close on Jun 29, then fell to $124 on Jul 29 after its Q2 report. Since August it has traded mostly between $143 and $170.
Revenue and margins, by quarter
Revenue in US$ millions (GAAP net sales), with GAAP gross margin on the right axis. Corning's fiscal year is the calendar year. Corning guides on "core" sales, which use fixed or hedged currency rates and have run about $180–230M above GAAP sales in recent quarters. The last bar is my GAAP estimate for Q3 2026: the $4.9–5.0B core guide minus that gap.
| Quarter | Ended | Revenue, US$M | YoY | Gross margin | Op. margin | EPS (GAAP) |
|---|
Watch list
What moves the thesis, sorted by direction.
AI fiber demand
Enterprise Networks sales rose 65% to $1.27B, with Gen AI products growing faster. Corning has multiyear supply deals with Meta (up to $6B), Amazon, NVIDIA and, since September, AT&T (over $3B).
Margins rising
Core operating margin rose 190 bp to 20.9% and Optical net income grew 77%, faster than sales.
Solar ramp
Solar (Hemlock polysilicon plus US wafers) grew 90% but lost $7M after a plant shutdown. Management expects better profit from Q3, building toward more than $3B of revenue.
Funding the build-out
Capex is set at about $2B for 2026. Corning took a $1.0B customer prepayment, sold $500M of warrants to NVIDIA and set up a $2B at-the-market share program in September.
High expectations
At about 48 times 2026 core EPS consensus, little room is left for misses. In July an in-line guide sent the stock down 12% in a day.
Concentration and legacy units
The top two Optical customers were 28% of segment sales in 2025. Management expects handheld units to fall about 15% this year on memory prices, a drag on Gorilla Glass, and Life Sciences sales fell 15%.
Calendar
Q3 2026 earnings
Guide is $4.9–5.0B core sales and $0.85–0.89 core EPS; Q3 should reach the $20B annualized run rate a quarter early.
Ex-dividend
$0.28 a share, paid Dec 11. The dividend has been flat since 2023.
Q4 2026 earnings
Full-year results, the 2027 capex plan and a check on the end-2026 Springboard target. Last year's report came on Feb 3.
Sources
- Q2 2026 results (Corning, via Business Wire)
- Q2 2026 segment results (Quartr)
- Q3 2026 earnings preview: capex, funding, risks (Drillr)
- Quarterly income statement (Stock Analysis)
- AT&T and Corning fiber agreement (AT&T)
- $2B at-the-market program, 8-K (Stock Titan)
- Price, market cap, beta and analyst data: MarketBeat and Stocklake, as of Oct 9, 2026