Auckland International Airport (NZSE:AIA) has had a rough three months with its share price down 6.9%. It seems that the market might have completely ignored the positive aspects of the company's fundamentals and decided to weigh-in more on the negative aspects. Fundamentals usually dictate market outcomes so it makes sense to study the company's financials. Specifically, we decided to study Auckland International Airport's  ROE in this article.

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 other words, it is a profitability ratio which measures the rate of return on the capital provided by the company's shareholders.

Check out our latest analysis for Auckland International Airport

How To Calculate Return On Equity?

ROE can be calculated by using the formula:

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

So, based on the above formula, the ROE for Auckland International Airport is:

1.1% = NZ$88m ÷ NZ$8.2b (Based on the trailing twelve months to December 2022).

The 'return' is the yearly profit. So, this means that for every NZ$1 of its shareholder's investments, the company generates a profit of NZ$0.01.

What Has ROE Got To Do With Earnings Growth?

We have already established that ROE serves as an efficient profit-generating gauge for a company's future earnings. We now need to evaluate how much profit the company reinvests or "retains" for future growth which then gives us an idea about the growth potential of the company. Assuming everything else remains unchanged, the higher the ROE and profit retention, the higher the growth rate of a company compared to companies that don't necessarily bear these characteristics.

A Side By Side comparison of Auckland International Airport's Earnings Growth And 1.1% ROE

As you can see, Auckland International Airport's ROE looks pretty weak. Even when compared to the industry average of 5.6%, the ROE figure is pretty disappointing. Therefore, it might not be wrong to say that the five year net income decline of 19% seen by Auckland International Airport was possibly a result of it having a lower ROE. We reckon that there could also be other factors at play here. For instance, the company has a very high payout ratio, or is faced with competitive pressures.



So, as a next step, we compared Auckland International Airport's performance against the industry and were disappointed to discover that while the company has been shrinking its earnings, the industry has been growing its earnings at a rate of 5.9% over the last few years. past-earnings-growth

Earnings growth is an important metric to consider when valuing a stock. What investors need to determine next is if the expected earnings growth, or the lack of it, is already built into the share price. By doing so, they will have an idea if the stock is headed into clear blue waters or if swampy waters await. Is Auckland International Airport fairly valued compared to other companies? These 3 valuation measures might help you decide.

Is Auckland International Airport Using Its Retained Earnings Effectively?

While the company did payout a portion of its dividend in the past, it currently doesn't pay a dividend. This implies that potentially all of its profits are being reinvested in the business.

Conclusion

On the whole, we feel that the performance shown by Auckland International Airport can be open to many interpretations. Even though it appears to be retaining most of its profits, given the low ROE, investors may not be benefitting from all that reinvestment after all. The low earnings growth suggests our theory correct. Having said that, looking at current analyst estimates, we found that the company's earnings growth rate is expected to see a huge improvement. Are these analysts expectations based on the broad expectations for the industry, or on the company's fundamentals? Click here to be taken to our analyst's forecasts page for the company.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.