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 Lam Research (LRCX) revenue becomes net income?

For TTM through Q1 2026, Lam Research turned $21.7B of revenue into $6.71B of net income — a net margin of 30.9%. The waterfall shows where the rest goes: cost of revenue, operating expenses, non-operating items, and taxes.

What are Lam Research (LRCX) gross, operating, and net margins?

For TTM through Q1 2026, Lam Research reported a gross margin of 50%, an operating margin of 34.3%, and a net margin of 30.9%. Each subtotal in the waterfall corresponds to one of these margins.

Why does Lam Research (LRCX) 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.

Lam Research (LRCX) Income Statement Waterfall

Revenue

$21.7B

Gross Margin

+50.0%

Operating Margin

+34.3%

Net Margin

+30.9%

Income statement waterfall for Lam Research (LRCX) — TTM through Q1 2026

Net income: $6.71B

Margin breakdown for Lam Research (LRCX) — TTM through Q1 2026

Line item	Amount	Running total
Revenue	$21.7B	$21.7B
Cost of Revenue	-$10.8B	$10.8B
Gross Profit	$10.8B	$10.8B
Operating Expenses	-$3.41B	$7.43B
Operating Income	$7.43B	$7.43B
Other Income / Expense	$58.9M	$7.49B
Pre-tax Income	$7.49B	$7.49B
Income Tax	-$778M	$6.71B
Net Income	$6.71B	$6.71B

Revenue$21.7B
Cost of Revenue-$10.8B
Gross Profit$10.8B
Operating Expenses-$3.41B
Operating Income$7.43B
Other Income / Expense$58.9M
Pre-tax Income$7.49B
Income Tax-$778M
Net Income$6.71B

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