Operating Margin

Operating margin measures what percentage of revenue remains as operating profit after deducting all operating expenses but before interest and taxes. It reveals how efficiently a company runs its core business, independent of how it finances itself or what tax rate it pays.

The formula divides operating income by total revenue. A 20 percent operating margin means the company keeps 20 cents of operating profit from every dollar of revenue.

Why It Matters

Operating margin isolates the profitability of the business itself. Two companies in the same industry with similar revenues but different operating margins are being managed at very different levels of efficiency. The one with the higher margin has better cost control, pricing power, or both.

Expanding operating margins over time signal improving efficiency and often precede earnings growth. Declining margins may indicate rising costs, competitive pressure, or loss of pricing power — even if revenue is still growing.

Operating margin is one of four metrics in the profitability factor of the FPI Rating, alongside gross margin, net margin, and free cash flow margin. Together they paint a complete picture of how effectively a company converts revenue into profit at every stage.