Operating leverage
By SuperdayReps · Michigan Ross Undergrad | Wharton MBA · ex-Citi | ex-Greenhill · Former Head Mentor at a Leading IB Prep Service
5 min read · updated July 8, 2026
Two companies can grow revenue by the exact same 10% and report wildly different jumps in profit. One barely moves. The other's operating profit leaps 40%. Nothing is wrong with either. The difference is operating leverage, and once you see it, a lot of "how do margins behave as this company scales" questions answer themselves.
Fixed costs versus variable costs
Every cost a business pays falls into one of two buckets, and the split is the whole game.
Variable costs scale directly with each unit you sell. Sell one more coffee and you pay for one more cup of beans, one more paper cup. Sell nothing and those costs go to zero. The raw materials sitting inside cost of goods sold are the classic example.
Fixed costs do not move with volume, at least not in the short run. Rent on the storefront is the same whether you serve 10 customers or 10,000. Salaried staff, the software subscriptions that run the business, the depreciation on a factory you already built: all fixed. You pay them before you sell a single thing.
Operating leverage is simply how much of a company's cost base is fixed. The more of your costs that sit fixed, the higher your operating leverage. That single ratio decides how violently profit reacts when revenue moves.
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Frequently asked
- What is operating leverage?
- Operating leverage is how much of a company's cost base is fixed. The more costs that sit fixed, the higher the leverage, and the more violently profit reacts when revenue moves. A high-fixed business like software or airlines can turn a 10% revenue rise into a 40% jump in operating profit.
- Why do fixed costs make profit swing so much?
- Once revenue covers the fixed costs, every extra dollar of sales only has to cover its own small variable cost, so most of it drops straight to operating profit. The share that survives is the contribution margin. A software firm might keep 80 cents on the dollar, a grocery store just 20 cents.
- What happens to a high-operating-leverage company when revenue falls?
- Profit falls faster than sales, because the fixed costs stay put no matter the volume. Drop a high-fixed firm's revenue 10% and its operating profit can collapse 40%. High operating leverage is not free money; it magnifies losses on the way down exactly as much as it magnifies gains on the way up.
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