# Should We Be Delighted With Companhia Energética do Rio Grande do Norte - COSERN's (BVMF:CSRN3) ROE Of 35%?

By
Simply Wall St
Published
April 21, 2022

Many investors are still learning about the various metrics that can be useful when analysing a stock. This article is for those who would like to learn about Return On Equity (ROE). By way of learning-by-doing, we'll look at ROE to gain a better understanding of Companhia Energética do Rio Grande do Norte - COSERN (BVMF:CSRN3).

Return on equity or ROE is a key measure used to assess how efficiently a company's management is utilizing the company's capital. In simpler terms, it measures the profitability of a company in relation to shareholder's equity.

See our latest analysis for Companhia Energética do Rio Grande do Norte - COSERN

### How Do You Calculate Return On Equity?

The formula for return on equity is:

Return on Equity = Net Profit (from continuing operations) ÷ Shareholders' Equity

So, based on the above formula, the ROE for Companhia Energética do Rio Grande do Norte - COSERN is:

35% = R\$533m ÷ R\$1.5b (Based on the trailing twelve months to December 2021).

The 'return' is the yearly profit. One way to conceptualize this is that for each R\$1 of shareholders' capital it has, the company made R\$0.35 in profit.

### Does Companhia Energética do Rio Grande do Norte - COSERN Have A Good Return On Equity?

One simple way to determine if a company has a good return on equity is to compare it to the average for its industry. However, this method is only useful as a rough check, because companies do differ quite a bit within the same industry classification. Pleasingly, Companhia Energética do Rio Grande do Norte - COSERN has a superior ROE than the average (21%) in the Electric Utilities industry.

That is a good sign. Bear in mind, a high ROE doesn't always mean superior financial performance. Aside from changes in net income, a high ROE can also be the outcome of high debt relative to equity, which indicates risk. Our risks dashboardshould have the 2 risks we have identified for Companhia Energética do Rio Grande do Norte - COSERN.

### How Does Debt Impact ROE?

Virtually all companies need money to invest in the business, to grow profits. That cash can come from retained earnings, issuing new shares (equity), or debt. In the case of the first and second options, the ROE will reflect this use of cash, for growth. In the latter case, the debt required for growth will boost returns, but will not impact the shareholders' equity. In this manner the use of debt will boost ROE, even though the core economics of the business stay the same.

### Companhia Energética do Rio Grande do Norte - COSERN's Debt And Its 35% ROE

Companhia Energética do Rio Grande do Norte - COSERN does use a high amount of debt to increase returns. It has a debt to equity ratio of 1.42. Its ROE is pretty impressive but, it would have probably been lower without the use of debt. Investors should think carefully about how a company might perform if it was unable to borrow so easily, because credit markets do change over time.

### Conclusion

Return on equity is a useful indicator of the ability of a business to generate profits and return them to shareholders. Companies that can achieve high returns on equity without too much debt are generally of good quality. All else being equal, a higher ROE is better.

But ROE is just one piece of a bigger puzzle, since high quality businesses often trade on high multiples of earnings. The rate at which profits are likely to grow, relative to the expectations of profit growth reflected in the current price, must be considered, too. Check the past profit growth by Companhia Energética do Rio Grande do Norte - COSERN by looking at this visualization of past earnings, revenue and cash flow.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of interesting companies.

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