What is Return on Equity?
Return on Equity measures how much profit a company generates for every dollar of shareholder equity. If a company has an ROE of 20%, it generates $0.20 in profit for each $1 that shareholders have invested. It’s one of the most widely used indicators of management effectiveness.
ROE answers a straightforward question: how well is management using the money shareholders have entrusted to them?
Why it matters for investors
A consistently high ROE suggests a company has a competitive advantage — a strong brand, network effects, or intellectual property that lets it earn outsized returns. Warren Buffett has long favored companies with ROE above 20% as a sign of durable competitive advantage.
However, ROE can be artificially inflated by high debt. A company with very little equity and a lot of debt can show a high ROE even with modest profits. That’s why it’s important to check ROE alongside the Debt-to-Equity ratio — high ROE combined with low debt is the ideal combination.
How Stock Analyzer scores it
| Score | ROE Range | What it means |
|---|---|---|
| A | 20%+ | Excellent — strong competitive advantage |
| B | 10% – 20% | Above average management effectiveness |
| C | 5% – 10% | Moderate returns |
| D | 1% – 5% | Below average |
| E | Below 1% | Poor returns or losses |
What to watch out for
Watch for companies that inflate ROE through buybacks (reducing equity) or excessive debt (leveraging the denominator). A company with negative equity (more debt than assets) will show an undefined or misleading ROE. Compare ROE across companies in the same industry — capital-intensive industries naturally have lower ROE than asset-light businesses.