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# With A Return On Equity Of 6.1%, Has Corporación América Airports S.A.'s (NYSE:CAAP) Management Done Well?

One of the best investments we can make is in our own knowledge and skill set. With that in mind, this article will work through how we can use Return On Equity (ROE) to better understand a business. We'll use ROE to examine Corporación América Airports S.A. (NYSE:CAAP), by way of a worked example.

Over the last twelve months Corporación América Airports has recorded a ROE of 6.1%. That means that for every \$1 worth of shareholders' equity, it generated \$0.06 in profit.

See our latest analysis for Corporación América Airports

### How Do You Calculate Return On Equity?

The formula for ROE is:

Return on Equity = Net Profit ÷ Shareholders' Equity

Or for Corporación América Airports:

6.1% = US\$77m ÷ US\$1.2b (Based on the trailing twelve months to September 2019.)

Most readers would understand what net profit is, but it’s worth explaining the concept of shareholders’ equity. It is the capital paid in by shareholders, plus any retained earnings. You can calculate shareholders' equity by subtracting the company's total liabilities from its total assets.

### What Does ROE Signify?

ROE measures a company's profitability against the profit it retains, and any outside investments. The 'return' is the profit over the last twelve months. That means that the higher the ROE, the more profitable the company is. So, all else being equal, a high ROE is better than a low one. Clearly, then, one can use ROE to compare different companies.

### Does Corporación América Airports Have A Good Return On Equity?

Arguably the easiest way to assess company's ROE is to compare it with the average in its industry. The limitation of this approach is that some companies are quite different from others, even within the same industry classification. The image below shows that Corporación América Airports has an ROE that is roughly in line with the Infrastructure industry average (6.7%).

That's neither particularly good, nor bad. ROE doesn't tell us if the share price is low, but it can inform us to the nature of the business. For those looking for a bargain, other factors may be more important. I will like Corporación América Airports better if I see some big insider buys. While we wait, check out this free list of growing companies with considerable, recent, insider buying.

### How Does Debt Impact ROE?

Most companies need money -- from somewhere -- to grow their profits. That cash can come from issuing shares, retained earnings, or debt. In the first and second cases, the ROE will reflect this use of cash for investment in the business. In the latter case, the use of debt will improve the returns, but will not change the equity. In this manner the use of debt will boost ROE, even though the core economics of the business stay the same.

### Corporación América Airports's Debt And Its 6.1% ROE

It's worth noting the significant use of debt by Corporación América Airports, leading to its debt to equity ratio of 1.01. While the ROE isn't too bad, it would probably be a lot lower if the company was forced to reduce debt. Debt increases risk and reduces options for the company in the future, so you generally want to see some good returns from using it.

### The Bottom Line On ROE

Return on equity is a useful indicator of the ability of a business to generate profits and return them to shareholders. In my book the highest quality companies have high return on equity, despite low debt. If two companies have the same ROE, then I would generally prefer the one with less debt.

But when a business is high quality, the market often bids it up to a price that reflects this. It is important to consider other factors, such as future profit growth -- and how much investment is required going forward. So I think it may be worth checking this free report on analyst forecasts for the company.

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

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned.

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