What Is Operating Margin?
Operating margin measures the percentage of revenue remaining after subtracting both the cost of goods sold and selling, general, and administrative (SG&A) expenses. The formula is Operating Income ÷ Revenue × 100, and it shows how efficiently a company generates profit from its core business operations alone.
Because operating margin excludes non-operating items such as interest income or gains from asset sales, it is considered a more accurate reflection of a company’s pure core-business competitiveness than net profit margin.
Why Operating Margin Matters
A consistently high operating margin signals that a company possesses both pricing power and strong cost discipline. If gross margin is high but operating margin is low, it often means SG&A or marketing expenses are eating into profitability more than expected.
Relationship With Gross Margin
Operating margin is derived from gross margin after further subtracting SG&A expenses as a share of revenue, so comparing the two side by side lets analysts separate cost structure issues into production costs versus selling and administrative costs.
| Metric | Costs Deducted | Key Insight |
|---|---|---|
| Gross Margin | Cost of goods sold only | Pricing power and production cost control |
| Operating Margin | COGS + SG&A expenses | Overall core-business profitability |
| Net Profit Margin | Non-operating items and taxes as well | Final profitability attributable to shareholders |
Frequently Asked Questions
What operating margin is considered good?
This varies widely by industry, but a general manufacturing benchmark of 10% or higher is often viewed as healthy. Always compare against industry peers for meaningful interpretation.
Why is operating margin always lower than or equal to gross margin?
Operating margin further deducts SG&A expenses from gross profit, so it is structurally impossible for operating margin to exceed gross margin.
How does a falling operating margin affect stock price?
A declining operating margin is often interpreted as weakening core competitiveness, which can lower investors’ earnings expectations and put downward pressure on the stock price.
How does operating margin differ from EBITDA margin?
EBITDA margin adds back depreciation and amortization to operating income, making it more useful than operating margin when comparing cash-generating ability across capital-intensive companies.
Key Takeaways
Operating margin shows the share of revenue remaining after deducting both production and selling/administrative costs, offering the clearest view of a company’s core-business competitiveness when compared alongside gross margin and net profit margin. This article is for informational purposes only and does not constitute investment advice.
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