What is Operating margin?
Operatsion marja
In short
Operating income ÷ revenue: how much of every $100 in sales is left after cost of revenue and running expenses (salaries, marketing, research).
Also known as: EBIT margin
Operating margin shows how much operating profit a company keeps from every $100 of sales after paying cost of revenue and running expenses (salaries, marketing, research, administration).
Operating margin = Operating income ÷ Revenue × 100%
Operating income is often close to EBIT (earnings before interest and tax), which is why the metric is also called "EBIT margin".
Why it is useful
It shows how efficient the core business is, separate from the debt structure and taxes. Gross margin only accounts for the cost of the product, while net margin is "polluted" by interest, taxes and one-off items. Operating margin is the cleanest measure between them.
How it is used
- Trend: if the margin widens year after year, the company is becoming more efficient as it grows (operating leverage).
- Peer comparison: within an industry, a higher margin is often a sign of competitive advantage.
Limitation
You cannot compare across industries: 5% can be a good result for a retailer and a weak one for a software company. One-off costs (restructuring) can also distort a single year's margin.
Revenue grew from $60m to $100m while operating margin rose from 12% to 25%. Both lines point up — the business gets more efficient as it grows.
Example
Two hypothetical companies ($ millions):
- A: revenue 500, operating income 75 → 75 ÷ 500 = 15%
- B: revenue 2,000, operating income 100 → 100 ÷ 2,000 = 5%
B is bigger, but A keeps $15 of every $100 in sales while B keeps only $5.
The next year A's revenue grows 10% to 550 and operating income reaches 90: 90 ÷ 550 ≈ 16.4%. Revenue grew 10% but operating income grew 20% — because part of the costs is fixed and does not grow with sales. That is operating leverage.
Mistakes and tips
Compare margins only among companies in the same industry.
Look at the 3–5 year trend rather than one quarter — direction matters more than level.
Operating leverage works both ways: when revenue falls, operating income falls even faster.
Frequently asked questions
- What is a good operating margin?
- It depends on the industry: single-digit margins are normal in retail and distribution, while software often shows 20–30% or more. The best yardsticks are peers and the company's own history.
- What is the difference between operating margin and net margin?
- Operating margin is based on profit before interest and taxes. Net margin is based on the final profit left after those and other items are subtracted.
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