GLWCorning Inc.
Corning traces its origins to a glass business established in 1851. 10-K, Item 1
- Headquarters
- Corning, NY
- CEO
- Wendell P. Weeks
- Next results
- around Jan 27, 2027
The biggest changes in the 10-K filed 2026-02-12, this fiscal year against the last, and the sentences in the MD&A (Item 7) where management explains them, quoted word for word. Tickdelta picks sentences that name the line, a direction and a cause. It does not write explanations of its own.
Net income
+215.4% Big change FY to 2025-12-31 vs 2024-12-31“The effective tax rate for the year ended December 31, 2025 decreased compared to the year ended December 31, 2024 primarily due to the impact of changes in pretax earnings, foreign derived intangible income, release of cumulative translation losses and share-based compensation.”
Read it in the 10-K ↗
“The increase in core net income of $500 million was driven by higher reportable segment net income in Optical Communications of $436 million and Specialty Materials of $107 million, partially offset by a decrease from Hemlock and Emerging Growth Businesses of $68 million.”
Read it in the 10-K ↗
Operating margin
8.7% → 14.6% (+5.9 pts) Big change FY to 2025-12-31 vs 2024-12-31The MD&A has no sentence that names a cause for this change. That can be worth a question: ask about the filing.
Cash from operations
+39.0% Big change FY to 2025-12-31 vs 2024-12-31“Net cash provided by operating activities increased by $756 million for the year ended December 31, 2025, when compared to the same period in the prior year, primarily driven by the increase in net income and upfront cash payments from customers relating to long-term sales agreements and cash received under government incentive programs, partially offset by changes in working capital and incremental pension contributions.”
Read it in the 10-K ↗
Gross margin
32.6% → 36.0% (+3.4 pts) Big change FY to 2025-12-31 vs 2024-12-31The MD&A has no sentence that names a cause for this change. That can be worth a question: ask about the filing.
Revenue
+19.1% Big change FY to 2025-12-31 vs 2024-12-31“The increase in segment net sales was primarily due to continued growth in our Enterprise business driven by strong demand for our Generative AI products, and in our Carrier business, driven by demand for datacenter interconnect products and fiber-to-the-home products.”
Read it in the 10-K ↗
“The increase in core net sales of $1.9 billion was primarily driven by higher reportable segment net sales in Optical Communications of $1.6 billion, Hemlock and Emerging Growth Businesses of $363 million and Specialty Materials of $193 million, partially offset by a decrease in net sales in Display of $175 million.”
Read it in the 10-K ↗
Changes are computed from the XBRL figures in the same 10-K. Hover a number to see the line item. Open the 10-K ↗
Work on GLW in a spreadsheet:
Excel workbook (a sheet per section, ten years by column, charts, links to the filings) ·
CSV.
For a Google Sheet that stays up to date, paste =IMPORTDATA("https://tickdelta.com/company/GLW/export.csv") into a cell.