
ROE (Return on Equity), or return on shareholders' equity, is a financial metric that measures a company's profitability relative to the capital invested by its shareholders. It is a fundamental tool for assessing how efficiently a company uses shareholders' money to generate profits.
ROE is particularly useful for investors because it shows the return a company is achieving on each unit of equity — in other words, the return shareholders earn for every euro or dollar they invest.
How is ROE calculated?
The formula for calculating ROE is:

Where:
- Net profit: the total profit the company has earned after taxes and expenses.
- Shareholders' equity: the capital contributed by shareholders, plus retained earnings that are not paid out as dividends.
For example, if a company has a net profit of €50,000 and shareholders' equity of €250,000, the ROE would be:

This means the company is generating a 20% return on the capital contributed by its shareholders.
Differences between ROE, ROA, ROCE and ROIC
Each of these metrics looks at profitability from a different angle:
- ROE (Return on Equity):
- Measures the return on shareholders' equity.
- Focuses on the return shareholders earn on their investment.
- ROA (Return on Assets):
- Measures profitability relative to total assets.
- It is calculated as:

- ROCE (Return on Capital Employed):
- Assesses the return on the total capital employed in the business, which includes both shareholders' equity and long-term debt.
- The formula is:

- It shows how much the company is earning for each unit of capital invested in its operations, regardless of where that capital comes from (equity or debt).
- ROIC (Return on Invested Capital):
- Measures the return on invested capital, which includes equity and long-term debt but excludes capital that is not actively being used to generate profits.
- The formula is:

- ROIC is ideal for assessing how well a company uses all of its invested capital to create value for its investors.
A practical example of calculating ROE
Imagine a company called Eduardo Inversiones with the following financials:
- Annual net profit: €120,000
- Shareholders' equity: €600,000
To calculate the ROE of Eduardo Inversiones:

This means the company is generating a 20% return on the capital invested by its shareholders. In other words, for every euro shareholders have invested, the company has generated €0.20 of net profit.
How to interpret ROE
A 20% ROE is generally considered POSITIVE, but how you interpret it depends on the sector and the industry average. A high ROE indicates that the company is using shareholders' capital efficiently to generate profits. However, an excessively high ROE can be a sign that the company is relying heavily on debt to finance its operations, which increases financial risk.
Conclusion
ROE is a fundamental metric for assessing a company's profitability from the shareholders' perspective. Understanding how it differs from other ratios such as ROA, ROCE and ROIC will give you a more complete picture of a company's overall efficiency and profitability. Using these metrics together can help you make better-informed investment decisions.
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