What is an income statement waterfall?

An income statement waterfall is a bar chart that walks from total revenue down to net income, with each step showing how much a cost or tax line removes (or adds). Subtotals — gross profit, operating income, pre-tax income — are anchored to zero so the cascade reconciles exactly to the bottom line.

How much of Corning (GLW) revenue becomes net income?

For TTM through Q1 2026, Corning turned $16.3B of revenue into $1.81B of net income — a net margin of 11.1%. The waterfall shows where the rest goes: cost of revenue, operating expenses, non-operating items, and taxes.

What are Corning (GLW) gross, operating, and net margins?

For TTM through Q1 2026, Corning reported a gross margin of 36.3%, an operating margin of 15.3%, and a net margin of 11.1%. Each subtotal in the waterfall corresponds to one of these margins.

Why does Corning (GLW) have such a high (or low) gross margin?

Gross margin (gross profit ÷ revenue) reflects how much of each revenue dollar remains after direct production costs. Capital-light software and platform businesses often show gross margins above 60–80% because their cost of revenue is mainly hosting and support. Hardware, retail, and commodity businesses show lower gross margins because raw materials and manufacturing costs are significant. The waterfall makes this visible at a glance — the size of the "Cost of Revenue" bar relative to Revenue is the gross margin complement.

What is the difference between gross, operating, and net margin?

Gross margin = (Revenue − Cost of Revenue) ÷ Revenue. It measures production efficiency. Operating margin = Operating Income ÷ Revenue. It adds operating expenses (R&D, S&M, G&A) and measures the profitability of core operations. Net margin = Net Income ÷ Revenue. It also includes interest, other income/expense, and taxes, and represents the shareholder take after everything.

Corning (GLW) Income Statement Waterfall

Revenue

$16.3B

Gross Margin

+36.3%

Operating Margin

+15.3%

Net Margin

+11.1%

Income statement waterfall for Corning (GLW) — TTM through Q1 2026

Net income: $1.81B

Margin breakdown for Corning (GLW) — TTM through Q1 2026

Line item	Amount	Running total
Revenue	$16.3B	$16.3B
Cost of Revenue	-$10.4B	$5.93B
Gross Profit	$5.93B	$5.93B
Operating Expenses	-$3.43B	$2.5B
Operating Income	$2.5B	$2.5B
Other Income / Expense	-$158M	$2.34B
Pre-tax Income	$2.34B	$2.34B
Income Tax	-$376M	$1.97B
Other Items	-$155M	$1.81B
Net Income	$1.81B	$1.81B

Revenue$16.3B
Cost of Revenue-$10.4B
Gross Profit$5.93B
Operating Expenses-$3.43B
Operating Income$2.5B
Other Income / Expense-$158M
Pre-tax Income$2.34B
Income Tax-$376M
Other Items-$155M
Net Income$1.81B

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