Return on Equity (ROE)

What Is Return on Equity?

Return on Equity (ROE) measures a company's profitability relative to shareholders' equity, quantifying how effectively management generates profit from the capital investors have committed. It answers the question: "For every dollar of equity, how much profit does the company produce?"

The formula is: ROE = Net Income / Average Shareholders' Equity x 100%

ROE is one of the most important metrics in fundamental analysis, used to assess management effectiveness, compare profitability across companies, and determine whether a company deserves a premium or discount to book value.

Why ROE Matters

ROE is central to investment analysis for several reasons:

• Value creation: A company that consistently earns ROE above its cost of equity (typically 8-12%) is creating value for shareholders. ROE below the cost of equity destroys value, as the company would be better off returning capital to shareholders
• Compounding: High-ROE companies that retain and reinvest earnings at attractive rates compound shareholder value rapidly. A company reinvesting 70% of earnings at 20% ROE grows equity at 14% annually
• Valuation anchor: ROE determines what P/B multiple a stock deserves. A perpetual 20% ROE with a 10% cost of equity justifies a 2.0x P/B at minimum. A 10% ROE with 10% cost of equity justifies only 1.0x

DuPont Analysis

The DuPont framework decomposes ROE into three components:

ROE = Net Profit Margin x Asset Turnover x Equity Multiplier

This decomposition is critical because it reveals the quality of ROE. High-quality ROE comes from high margins (pricing power, cost efficiency) and high asset turnover (capital efficiency). Lower-quality ROE comes from high leverage (financial engineering that increases risk).

A company improving ROE through margin expansion is strengthening its competitive position. A company improving ROE through increasing leverage is taking on more risk. The DuPont analysis distinguishes between the two.