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ProfitabilityOperating Margin

What is Operating Margin?

Operating Margin measures what percentage of revenue a company retains as operating profit after paying for production costs, selling expenses, and overhead -- but before interest and taxes. It is one of the cleanest measures of a company's core business profitability because it excludes the effects of debt financing and tax policy, making it ideal for comparing operational efficiency across companies with different capital structures.

Formula

Operating Margin = (Operating Income / Revenue) x 100

Why Operating Margin Matters to Value Investors

Expanding operating margins over time are one of the clearest signals of a strengthening competitive position. When a company can raise prices, achieve scale economies, or improve operational efficiency faster than costs grow, its operating margin widens -- often before earnings per share accelerate. Screening for companies with consistently expanding operating margins across economic cycles is a cornerstone strategy in quality-oriented value investing.

Conversely, declining operating margins are a key early warning indicator. Margin compression can reflect rising input costs, pricing pressure from competitors, or investments in growth that may or may not pay off. Tracking operating margin trend over 5-10 years tells a more complete story about a business than any single-year snapshot.

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Frequently Asked Questions

What is Operating Margin?+
Operating Margin is operating income (also called EBIT -- Earnings Before Interest and Taxes) divided by total revenue, expressed as a percentage. It answers the question: for every $100 in sales, how many dollars does the company keep after paying its operating costs? If a company generates $50M in operating income on $200M in revenue, its operating margin is 25%.
What is a good Operating Margin?+
Operating margin benchmarks vary significantly by industry. Software companies often achieve 20-40% operating margins. Consumer staples brands like Coca-Cola and Procter & Gamble operate at 15-25%. Retailers typically run 3-8%. Airlines and grocers often show 2-5%. A useful rule of thumb: an operating margin consistently above 15% is strong for most non-commodity industries, and sustained expansion of operating margin over time is a powerful sign of a widening competitive moat.
How does Operating Margin differ from Net Margin?+
Net Margin (Net Income / Revenue) is calculated after interest expense and income taxes. Operating Margin excludes both. This means a company with heavy debt loads will show a much lower net margin than operating margin, because interest charges consume a large portion of operating income. For comparing the core operating performance of two otherwise similar businesses, operating margin is the cleaner metric because it is not distorted by their financing choices or tax strategies.
Why is Operating Margin a better indicator than Net Margin for comparing companies?+
Net margin is influenced by factors outside management's direct control: the amount of debt on the balance sheet (which drives interest expense), the company's tax jurisdiction, one-time charges and gains, and accounting adjustments. Operating margin strips all of that out and focuses purely on the cost efficiency of the core business. Two companies in the same industry can have identical operating margins but very different net margins simply because one is more leveraged. Using operating margin for comparison gives you a like-for-like view of who actually runs a more efficient business.

Related Terms

EBITDA

Earnings before interest, taxes, depreciation & amortization

Return on Assets

Net income relative to total assets

Return on Equity

Net income relative to shareholders' equity

Free Cash Flow Yield

FCF per share relative to stock price

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