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 Arm (ARM) revenue becomes net income?

For TTM through Q1 2026, Arm turned $4.92B of revenue into $904M of net income — a net margin of 18.4%. The waterfall shows where the rest goes: cost of revenue, operating expenses, non-operating items, and taxes.

What are Arm (ARM) gross, operating, and net margins?

For TTM through Q1 2026, Arm reported a gross margin of 94.6%, an operating margin of 18.3%, and a net margin of 18.4%. Each subtotal in the waterfall corresponds to one of these margins.

Why does Arm (ARM) 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.

Arm (ARM) Income Statement Waterfall

Revenue

$4.92B

Gross Margin

+94.6%

Operating Margin

+18.3%

Net Margin

+18.4%

Income statement waterfall for Arm (ARM) — TTM through Q1 2026

Net income: $904M

Margin breakdown for Arm (ARM) — TTM through Q1 2026

Line item	Amount	Running total
Revenue	$4.92B	$4.92B
Cost of Revenue	-$264M	$4.66B
Gross Profit	$4.66B	$4.66B
Operating Expenses	-$3.76B	$901M
Operating Income	$901M	$901M
Other Income / Expense	$256M	$1.16B
Pre-tax Income	$1.16B	$1.16B
Income Tax	-$253M	$904M
Net Income	$904M	$904M

Revenue$4.92B
Cost of Revenue-$264M
Gross Profit$4.66B
Operating Expenses-$3.76B
Operating Income$901M
Other Income / Expense$256M
Pre-tax Income$1.16B
Income Tax-$253M
Net Income$904M

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