Definition (canonical)
Return on equity (ROE) measures how much profit a company generates for every unit of shareholders' capital: ROE = net income / shareholders' equity. Expressed as a percentage, it answers the owner's core question — how hard is my invested capital working? An ROE of 15% means the company earns 15 cents of profit a year per dollar of equity. It is one of the most-watched measures of management effectiveness.
What it reveals
ROE ties the income statement to the balance sheet: it rewards firms that turn owners' equity into profit efficiently. Consistently high ROE (say 15–20%+) usually signals a strong business — pricing power, efficient operations, or a capital-light model. But ROE must be read over time and against peers: a single high year can come from a one-off gain, and a low ROE may reflect a young company still investing. Comparing ROE across industries is misleading, because capital intensity differs hugely.
The DuPont breakdown
ROE's real insight comes from splitting it into three drivers (DuPont analysis): net margin (profit / revenue), asset turnover (revenue / assets), and financial leverage (assets / equity). This shows WHY ROE is high or low — fat margins, efficient asset use, or simply lots of debt. Two firms can share a 20% ROE for opposite reasons: one on operating excellence, the other on heavy borrowing. The breakdown, read with the balance sheet, separates genuine quality from financial engineering.
Why leverage can distort it
Because equity is the denominator, taking on debt or buying back shares shrinks equity and mechanically lifts ROE — even without any improvement in the underlying business. That is why a high ROE paired with a high debt-to-equity ratio deserves scrutiny: the return may be borrowed, not earned. Analysts often look at return on invested capital (ROIC) alongside ROE to strip out the leverage effect and see the true operating return.
FAQ
What is a good ROE? Often 15%+ is considered strong, but it varies by industry and must be judged over time and against peers, not in isolation.
Why can debt inflate ROE? Debt and buybacks shrink equity, the denominator, mechanically raising ROE without better operations.
What is DuPont analysis? A breakdown of ROE into margin, asset turnover and leverage, showing why the return is high or low.
How is ROE different from ROIC? ROE measures return on equity alone; ROIC includes all invested capital, removing the distortion from leverage.
Related: Equity · Profit · Balance sheet Reviewed: 2026-08-02 · Sources: corporate finance canon