10-Q · May 1, 2026
Corning Incorporated reported strong financial results for Q1 2026, with core net sales increasing 20% year-over-year to $4.14 billion, and core EPS rising 30% to $0.70. Notable growth was observed in Optical…
Earnings analysis · 10-Q
GLW earnings analysis
Filed July 29, 2026 · Our reading of the company's report
The latest report
Corning posted strong Q2 growth, with GAAP sales rising 17% year over year to $4.505 billion and GAAP EPS increasing to $0.64 from $0.54; core EPS rose 30% to $0.78. Optical Communications was the primary earnings…
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Corning posted strong Q2 growth, with GAAP sales rising 17% year over year to $4.505 billion and GAAP EPS increasing to $0.64 from $0.54; core EPS rose 30% to $0.78. Optical Communications was the primary earnings engine, fueled by Generative AI demand, while Solar produced outsized revenue growth but incurred a $7 million segment loss as capacity ramp costs rose. Liquidity and six-month cash generation improved substantially, although the $1.0 billion customer deposit boosted operating cash flow and management now expects approximately $2.0 billion of 2026 capex.
Gross and operating margin
How much of each revenue dollar the business keeps.
One point per quarterly or annual filing. Both margins are shares of that report's revenue.
From revenue to operating profit
Where each $100 of revenue went in this report.
Cost of sales, operating expenses, and what remained. Figures are rounded to whole dollars.
Where revenue came from
The business segments reported by the company.
Shares of the segments disclosed in this filing, largest first.
How we read each report
Our analysis across the last few reports.
Our model's reading of each filing, not the share price or the market's reaction. Annual and quarterly reports each occupy one position.
Reported figures
- Earnings per share
- $0.64
What stood out
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Double-digit sales growth and higher EPS
GAAP net sales were $4.505 billion, up $643 million (17%) from $3.862 billion a year earlier and up $365 million (9%) from $4.140 billion in Q1 2026. GAAP diluted EPS rose to $0.64 from $0.54 year over year; core EPS increased to $0.78 from $0.60.
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Margins stable year over year, operating leverage
Gross margin dollars increased $236 million (17%) to $1.628 billion while gross margin held near 36% versus 36% a year ago. Implied operating margin was approximately 16.0%, up from 14.8% in Q2 2025 and 15.4% in Q1 2026, based on $721 million of gross profit less SG&A and RD&E.
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AI-driven Optical Communications accelerates
Optical Communications delivered $2.072 billion of sales, up 32%, and segment net income rose $191 million, or 77%, to $438 million. Management attributed the growth to strong Enterprise demand for Generative AI products.
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Solar provides substantial incremental sales
Solar sales nearly doubled to $438 million, up $207 million or 90%, driven by polysilicon, wafer, and module sales. This was the second-largest contributor to the consolidated $643 million sales increase.
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Operating cash flow strengthened materially
Six-month operating cash flow climbed to $2.079 billion from $859 million, aided by higher net income and a $1.0 billion upfront customer deposit. Less $754 million of capital expenditures, calculated six-month free cash flow was $1.325 billion.
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Liquidity remains ample and leverage improved
Liquidity included $2.504 billion of cash and $1.500 billion of revolver availability at June 30, 2026, with no commercial paper or revolver borrowings outstanding. Total debt was essentially flat at $8.424 billion versus $8.434 billion at year-end, while debt to capital improved to 39% from 41%.
What to watch
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Solar capacity ramp remains loss-making
Solar remained unprofitable despite 90% sales growth: segment net income was a $7 million loss versus $2 million of income a year earlier. Management cited temporarily higher costs to ramp capacity, which also partially offset the $157 million increase in core net income.
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Life Sciences decline widened losses
Life Sciences and Emerging Growth Businesses sales fell $51 million, or 15%, to $294 million, while segment net income moved to a $21 million loss from $6 million of income. Management attributed the decline to Pharmaceutical Technologies.
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Capex intensity increases materially
Investment requirements are rising: six-month capital expenditures were $754 million, up $238 million year over year, and management expects approximately $2.0 billion for full-year 2026. That expected spend is about 23% of six-month sales of $8.649 billion when annualized on the reported sales base, creating execution and return-on-capital risk.
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Cash conversion partly supported by customer funding
Working-capital balances increased as inventories rose to $3.426 billion from $3.077 billion and receivables rose to $2.932 billion from $2.779 billion. Although days sales outstanding improved to 59 from 60, six-month operating cash flow included a $1.0 billion upfront customer deposit and $611 million of accelerated receivable collections.
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No formal risk-factor update in the 10-Q
Item 1A did not disclose new or revised risk factors, instead referring readers to the 2025 Form 10-K. The filing continues to identify customer demand, solar facility ramp and profitability targets, trade tensions, and the ability to pace capital spending as forward-looking risks.
Management's outlook
The 10-Q provides no explicit revenue or EPS outlook. Management expects 2026 capital expenditures of approximately $2.0 billion; it also expects voluntary 2026 pension contributions of $40 million domestically and $9 million internationally.
Earlier filings 4
10-Q · August 2, 2024
Corning reported Q2 net sales of $3,251 million and diluted EPS of $0.12. Revenue was roughly flat year-over-year (+$8 million) but margins and EPS deteriorated materially due to restructuring/asset write-offs and other…
10-Q · October 27, 2022
Corning reported Q3 net sales of $3,488 million (reported) and diluted EPS of $0.24, with revenue down versus prior-year quarter and materially lower operating income. Management recorded restructuring/asset charges of…
10-Q · July 29, 2022
Q2 2022 results: revenue increased to $3,615 million (+$114 million vs Q2 2021) and net income attributable to Corning was $563 million (diluted EPS $0.66). However, gross margin dollars declined to $1,246 million (from…
This is our reading of a public filing, not the filing itself. Analysis can contain errors; check the source document for full context.