Understanding ROE: What Return on Equity Tells You
Return on equity (ROE) is one of Warren Buffett's favorite metrics for a reason: it measures how much profit a company generates from the money shareholders have invested.
The formula
ROE = net income ÷ shareholder equity
An ROE of 15% means the company earns 15 cents of profit per year for every dollar of equity. As a baseline, we look for ROE above 5%, but consistently high ROE (15%+) is the hallmark of a quality business.
Why high ROE matters
A company that reinvests earnings at a high ROE compounds shareholder wealth faster. Two businesses can grow earnings at the same rate, but the one doing it with less capital is creating more value — and usually has a durable competitive advantage.
The trap: debt-inflated ROE
Here's the catch most beginners miss. ROE can be boosted artificially by taking on debt, because debt shrinks the equity in the denominator. A sky-high ROE paired with heavy leverage is a warning sign, not a green light.
That's why ROE should never be read in isolation. Always pair it with:
- Debt-to-equity — is the ROE built on leverage?
- Return on assets (ROA) — strips out the debt effect by measuring profit against all assets.
If ROE is high but ROA is mediocre, leverage is doing the heavy lifting.
A simple checklist
- Is ROE above 5% (ideally 15%+)?
- Is it stable or rising over several years?
- Is debt-to-equity reasonable (below 1.0)?
- Does ROA confirm the story?
When all four line up, you're likely looking at a genuinely profitable, well-run business.
Stoxly evaluates ROE, ROA and debt-to-equity together so you see the full picture. Try it free.
This article is for educational purposes only and is not financial advice.
For educational purposes only — not financial advice.