Return on equity (ROE) measures a company's profitability relative to shareholders' equity, showing how effectively management uses equity capital to generate profits. Expressed as a percentage, it indicates the return shareholders earn on their invested capital and is a key performance metric for investors and FP&A teams.
Formula
ROE = (Net Income / Shareholders' Equity) x 100In Depth
Return on equity answers a fundamental question: how much profit does the business generate for every pound of shareholders' equity? It is one of the most important metrics for assessing management effectiveness and comparing performance across companies.
The formula is: ROE = Net Income / Shareholders' Equity x 100. An ROE of 15% means the company generates 15p of profit for every £1 of equity.
ROE can be decomposed using the DuPont analysis into three components: profit margin (net income/revenue) x asset turnover (revenue/total assets) x equity multiplier (total assets/equity). This decomposition reveals whether high ROE comes from operational efficiency, asset utilisation, or financial leverage.
Higher ROE is generally better, but context matters. Very high ROE can result from excessive leverage rather than genuine operational excellence. A company with thin equity due to heavy borrowing will show high ROE, but the underlying business may be risky.
FP&A teams use ROE to evaluate business unit performance, assess investment opportunities, and set management incentive targets. Comparing ROE against the cost of equity determines whether the business is creating or destroying shareholder value.
For UK companies, ROE comparisons should consider the impact of UK-specific factors like R&D tax credits on net income and the effect of revaluation reserves on equity balances.
Real-World Example
A UK consumer goods company reports £3.5M net income on £22M shareholders' equity, giving an ROE of 15.9%. DuPont analysis reveals: 8.8% net margin x 1.2 asset turnover x 1.5 equity multiplier = 15.9%. Compared to an industry average ROE of 18%, the lower performance stems from weaker asset turnover, suggesting inefficient use of assets — specifically excess inventory identified by the FP&A team.
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