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Return on Equity (ROE) Calculator
Return on Equity (ROE) Calculator
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Return on Equity
15.0%
Profitability Analysis
An ROE of 15.0% on $12,000,000 of average equity is a solid, workable return — profitably employed capital, though not exceptional. Whether it is good depends on the cost of equity (typically 8–12%) and sector norms. The DuPont view shows which lever is doing the work: margin, asset turnover, or the equity multiplier (leverage).
*ROE can be inflated by leverage or share buybacks. Always pair it with debt levels and compare only within the same sector. Educational only, not investment advice.
What Return on Equity Measures
Return on equity (ROE) is the single most cited gauge of profitability in US equity analysis: net income divided by shareholder equity, expressed as a percentage. It answers the question every owner ultimately cares about — how much profit does this business generate each year from the money shareholders have invested? An ROE of 15% means every dollar of equity produced fifteen cents of profit this year. Investors prize the metric because it captures the compounding engine behind a business: a company that sustains high ROE and reinvests earnings can compound book value without raising fresh capital. ROE's power is its simplicity, and that is also its weakness. The ratio says nothing about how the return is generated. Two companies at 20% ROE can be polar opposites — one earning fat margins on modest assets with little debt, the other levering thin margins into an impressive-looking figure. That is why ROE is always paired with the DuPont decomposition, which splits the ratio into profit margin, asset efficiency, and financial leverage. It is also why context is essential: an ROE that looks strong in isolation can be mediocre against a sector that normally earns 25%, and buybacks that shrink the equity base can flatter the ratio without improving the underlying business. Read ROE as a starting point for the deeper question — what drives it, and will it persist.
How ROE Is Computed
Return on Equity = Net Income ÷ Average Shareholders' Equity × 100. Net income comes from the income statement; because the balance sheet shows equity at a single point in time, this calculator uses the average of beginning and ending equity to represent the capital base that actually generated the year's profit. The DuPont identity then decomposes the ratio: ROE = Net Profit Margin × Asset Turnover × Equity Multiplier. Margin captures pricing power and cost control; turnover captures how hard assets work; the equity multiplier (Assets ÷ Equity) captures leverage. This decomposition is the practical key to using ROE well. A software company's 25% ROE powered by a 30% net margin is a quality story; a 25% ROE powered by a 4× equity multiplier is a leverage story with a very different risk profile. This calculator lets you enter net margin and asset turnover, then back-solves the implied equity multiplier so you can see which lever is doing the heavy lifting. A useful benchmark is the cost of equity — roughly 8–12% for most US stocks — since an ROE above that hurdle means the company is genuinely creating value, while one below it is quietly destroying capital even when profitable. Track ROE across several years: durable quality shows up as a consistently high, stable return, while one-off spikes often trace to gains, tax benefits, or shrinking equity rather than a better business.
Expert Insights
Sustained ROE Is the Moat's Fingerprint
Any company can post one great year; few sustain a 20%+ ROE for a decade because competition and capital gravity normally erode excess returns. Persistently high ROE is among the strongest empirical signs of a durable competitive advantage — a moat. Screen for five-to-ten year average ROE rather than a single-year figure to separate quality from luck.
Beware the Buyback Boost
Share repurchases reduce shareholders' equity, mechanically raising ROE even if profit is flat. Some of the highest ROEs in the market belong to leveraged buyback machines, not capital-light wonders. Check whether equity is shrinking through buybacks versus growing through profits before crediting management — and compare ROE against return on invested capital to see past the distortion.
Judge ROE Against the Cost of Equity
ROE only means something relative to what shareholders require, typically 8–12%. A 9% ROE barely covers the cost of capital and creates almost no value; an 18% ROE compounds it. This hurdle framing prevents treating any positive ROE as success — the real test is whether the return clears the equity risk premium.
Actionable Tips
- 1
Always Run the DuPont Split
Enter the company's net margin and asset turnover here and read the implied equity multiplier. If leverage is the dominant driver, the ROE is fragile and interest-rate sensitive; if margin or turnover dominate, it is more likely structural. This one habit changes how you interpret nearly every ROE you see.
- 2
Use Average Equity, Not Year-End
Using only ending equity understates ROE for a growing company whose capital base expanded mid-year. This calculator averages beginning and ending equity, matching standard practice. For companies doing large mid-year buybacks or raises, use quarterly averages if you can, for a cleaner denominator.
- 3
Compare Only Within the Same Sector
Typical ROE ranges differ enormously by industry — asset-light consumer staples may earn 25%+ while utilities earn around 10%, both considered strong. Judge a company against its sector median and its own history. A stock 'underperforming' on absolute ROE may actually be a sector leader, and vice versa.
Real-World Examples
Nina Found Quality Behind the Numbers
Nina screened for companies with 20%+ average ROE over ten years and a clean DuPont profile — high margin, modest leverage. It surfaced a specialty compounder the market had underpriced as a boring industrial. Its ROE stayed elite through two downturns, and she rode it as the market re-rated it as a quality name.
Cal Saw Through a Flattered ROE
Cal saw a retailer flashing 30% ROE but the DuPont inputs revealed thin 2% margins pushed up by heavy debt and shrinking equity from buybacks. The 'return' was leverage, not earning power. When rates rose, interest ate the meager operating profit and the ROE collapsed. Cal avoided the drawdown.
Mei Tracked a Turnaround via ROE Trend
Mei watched a manufacturer's ROE climb from 6% to 14% over three years as margins improved and new assets came online. The rising trend confirmed the turnaround was real and earnings-driven, not engineered. She added to the position as ROE crossed the cost of equity, and the value creation showed up in the stock.
Glossary of Terms
- Return on Equity (ROE)
- Net income divided by average shareholders' equity, shown as a percentage; the profit earned per dollar of owner capital.
- DuPont Analysis
- A framework that splits ROE into net profit margin, asset turnover, and the equity multiplier to show what drives the return.
- Equity Multiplier
- Total assets divided by equity; the leverage factor that amplifies ROE when a company finances with debt.
Frequently Asked Questions
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Ivy Sinclair-Wren
Financial Chaos Analyst
Ivy Sinclair-Wren is a Financial Chaos Analyst covering investing, AI, wealth psychology, and the emotional consequences of opening finance apps during market crashes. Based in Melbourne, she specializes in demystifying the US tax code and helping users navigate the intersection of spreadsheet logic and human irrationality.