Freebeginner 5 min read
Understanding Margins
Gross, operating, net, each margin tells you something different about business quality.
Margins are the most efficient way to size up a business in under a minute. Each layer answers a different question.
Investor metric
Gross Margin
Pricing power and product economics. High and stable gross margins almost always reflect a structural advantage.
How to calculate it
(Revenue − COGS) ÷ Revenue
Investor metric
Operating Margin
Operational discipline. Reveals how well management converts gross profit into actual operating profit after the cost of running the business.
How to calculate it
Operating Income ÷ Revenue
Investor metric
Net Margin
What's left for shareholders after interest, taxes, and everything else. Distorted by capital structure, operating margin is usually more honest.
How to calculate it
Net Income ÷ Revenue
What margins reveal
- Expanding gross margin → pricing power or scale
- Falling operating margin while gross holds → bloated overhead
- Net margin volatility → leveraged or cyclical business
Key takeaways
- 01Gross margin shows the product. Operating shows the company. Net shows the structure.
- 02Watch the trend, not just the absolute number.
- 03Margin expansion through scale is one of the most powerful drivers of returns.