Definition

Net margin

Net income as a share of revenue — the bottom line after every cost: operations, interest, taxes, and one-offs. It is the margin the income statement ends on, and the profitability input to DuPont ROE analysis.

Formula

Net margin = Net income ÷ Revenue

Drivers — what actually moves it

Operating margin: the operating engine underneath the bottom line.
Interest: net interest expense from the debt load sits between operating and pre-tax income.
Tax rate: the effective rate can move on jurisdiction mix, credits, and one-time items.
One-offs: gains/losses on sales, impairments, and legal settlements can dominate a single year.

Where to find it in the filing

Income statement (Consolidated Statements of Operations). 10-K Item 8 — the final 'net income' line.

XBRL concepts Echelon grounds to: NetIncomeLoss

Sector caveats — where this breaks

For REITs, net income understates distributable cash because of large non-cash depreciation — the industry reads FFO alongside it.

Drill it in a live lesson Operating margin DuPont analysis Diluted EPS

Companies filing net margin

The same metric on a real filer, computed from the filing and cited to the accession.

Apple net margin AbbVie net margin Airbnb net margin Abbott net margin

Drill net margin on another filer

Graded exercises that use this metric — each one against a different company's own filed figures.

Apple's net margin AbbVie's net margin Airbnb's net margin Abbott's net margin Adobe's net margin Analog Devices' net margin

Educational use only — not investment advice. Figures come from public SEC filings; Echelon teaches you to analyze data, it never recommends buying or selling any security.