How does Corning (GLW) make money?

Corning (GLW) generates revenue primarily from Optical Communications, which accounted for 45.9% of total revenue in TTM through Q1 2026. The company reported $16.32B in revenue and converted 11.1% of it into net profit, equivalent to roughly $1.81B in net income — what's left after the cost of revenue, operating expenses, interest, and income taxes.

What is the gross profit margin of Corning (GLW)?

Corning (GLW) reported a gross profit margin of 36.3% in TTM through Q1 2026, equivalent to $5.93B in gross profit on $16.32B in revenue. Gross margin measures how much of each dollar of revenue remains after the direct cost of producing or delivering the product — a higher figure typically signals pricing power, scale, or a less capital-intensive business model.

What is the operating profit margin of Corning (GLW)?

Corning (GLW) reported an operating profit margin of 15.3% in TTM through Q1 2026, equivalent to $2.50B in operating income. Operating margin captures profitability after research & development, sales & marketing, and general & administrative expenses — but before interest, taxes, and one-off items — and is the cleanest single read on the underlying business's efficiency.

What is the net profit margin of Corning (GLW)?

Corning (GLW) reported a net profit margin of 11.1% in TTM through Q1 2026, equivalent to $1.81B in net income. Net margin is the bottom-line share of revenue that survives every expense — operating costs, interest, and income taxes — and is the figure that flows directly into earnings per share.

Is Corning (GLW) profitable?

Yes. Corning (GLW) reported $1.81B in net income for TTM through Q1 2026, with a net profit margin of 11.1%. The company earned more from its operations than it paid out in costs, interest, and income taxes, leaving positive earnings on the bottom line.

How much does Corning (GLW) invest in research and development?

Corning (GLW) invested $1.12B in research and development during TTM through Q1 2026, roughly 6.9% of total revenue. R&D spending funds the company's future product pipeline and is expensed in full on the income statement rather than capitalised, which makes the operating margin sensitive to how aggressively management chooses to reinvest in innovation.

How much does Corning (GLW) spend on capital expenditures?

Corning (GLW) spent $1.41B on capital expenditures (CapEx) during TTM through Q1 2026, roughly 8.6% of total revenue. CapEx represents long-lived investment in property, equipment, data centres, and other physical infrastructure, and is subtracted from operating cash flow to arrive at free cash flow.

How much free cash flow does Corning (GLW) generate?

Corning (GLW) generated $1.50B in free cash flow during TTM through Q1 2026, a free-cash-flow margin of 9.2%. Free cash flow is the cash left after capital expenditures and represents the discretionary pool the company can use to pay dividends, repurchase shares, repay debt, or fund acquisitions without raising external capital.

What is the effective tax rate of Corning (GLW)?

Corning (GLW) had an effective tax rate of 16.1% in TTM through Q1 2026. The effective rate is the actual share of pre-tax income paid as income taxes and can differ materially from the statutory rate due to foreign earnings mix, tax credits (such as R&D), share-based compensation deductions, and one-off discrete items.

What are the main business segments of Corning (GLW)?

Corning (GLW) reports revenue across 7 reportable product segments, led by Optical Communications at 45.9% of total revenue in TTM through Q1 2026. See the revenue-by-segment table on this page for the full breakdown and how each segment feeds into the income-statement waterfall above.

How Corning Makes Money: 2026 Visual Revenue Map

Corning (GLW) Income Statement Flow — TTM through Q1 2026

Calculated from the four most recent reported quarters, ending March 31, 2026 (reported May 1, 2026).

Corning discloses geographic revenue only in annual filings. to view the full breakdown.

Corning (GLW) Revenue by Product Segment — TTM through Q1 2026

Aggregated from the four quarterly disclosures behind this TTM. Minor differences vs the company's annual filing can occur if reported segments changed mid-year.

Revenue contribution by product segment for Corning (GLW) in TTM through Q1 2026.
Segment	Revenue (USD)	% of total
Optical Communications	$7.49B	45.9%
Display Technologies	$2.50B	15.3%
Automotive Products	$1.98B	12.2%
Specialty Materials	$1.88B	11.5%
Life Sciences	$1.06B	6.5%
Polycrystalline Silicon	$829.56M	5.1%
All Other	$565.96M	3.5%
Total	$16.32B	100%

Optical Communications$7.49B
Display Technologies$2.50B
Automotive Products$1.98B
Specialty Materials$1.88B
Life Sciences$1.06B
Polycrystalline Silicon$829.56M
All Other$565.96M
Total$16.32B

Revenue Breakdown — TTM through Q1 2026

In TTM through Q1 2026, Corning (GLW) reports revenue across 7 operating segments; the largest segment was Optical Communications at 45.9%, followed by Display Technologies (15.3%) and Automotive Products (12.2%).

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