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 Arthur J. Gallagher & (AJG) revenue becomes net income?

For TTM through Q1 2026, Arthur J. Gallagher & turned $15B of revenue into $1.61B of net income — a net margin of 10.8%. The waterfall shows where the rest goes: cost of revenue, operating expenses, non-operating items, and taxes.

What are Arthur J. Gallagher & (AJG) gross, operating, and net margins?

For TTM through Q1 2026, Arthur J. Gallagher & reported a gross margin of 66%, an operating margin of 18.2%, and a net margin of 10.8%. Each subtotal in the waterfall corresponds to one of these margins.

Why does Arthur J. Gallagher & (AJG) 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.

Arthur J. Gallagher & (AJG) Income Statement Waterfall

Revenue

$15B

Gross Margin

+66.0%

Operating Margin

+18.2%

Net Margin

+10.8%

Income statement waterfall for Arthur J. Gallagher & (AJG) — TTM through Q1 2026

Net income: $1.61B

Margin breakdown for Arthur J. Gallagher & (AJG) — TTM through Q1 2026

Line item	Amount	Running total
Revenue	$15B	$15B
Cost of Revenue	-$5.09B	$9.88B
Gross Profit	$9.88B	$9.88B
Operating Expenses	-$7.16B	$2.72B
Operating Income	$2.72B	$2.72B
Other Income / Expense	-$679M	$2.04B
Pre-tax Income	$2.04B	$2.04B
Income Tax	-$425M	$1.62B
Net Income	$1.61B	$1.61B

Revenue$15B
Cost of Revenue-$5.09B
Gross Profit$9.88B
Operating Expenses-$7.16B
Operating Income$2.72B
Other Income / Expense-$679M
Pre-tax Income$2.04B
Income Tax-$425M
Net Income$1.61B

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