Operating leverage measures the sensitivity of a company's operating profit (EBIT) to changes in its revenue — reflecting the proportion of fixed costs in its total cost structure. A company with high operating leverage has a large base of fixed costs (depreciation, rent, salaries) relative to variable costs. This means that when revenue grows, a disproportionately larger share flows through to operating profit — amplifying profitability. Conversely, when revenue declines, fixed costs continue unchanged, causing operating profit to fall sharply. The Degree of Operating Leverage (DOL) is calculated as: DOL = % Change in EBIT ÷ % Change in Revenue. Capital-intensive Indian industries — such as cement, airlines, steel, and telecom — have high operating leverage, making their earnings highly cyclical and sensitive to volume and price changes. Asset-light businesses — such as software services, consulting, and distribution — have lower operating leverage and more stable earnings across economic cycles. Understanding operating leverage is essential for assessing earnings volatility when analysing cyclical Indian companies.
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