For beginners, it can seem like a good idea (and an exciting prospect) to buy a company that tells a good story to investors, even if it currently lacks a track record of revenue and profit. But the reality is that when a company loses money each year, for long enough, its investors will usually take their share of those losses. While a well funded company may sustain losses for years, it will need to generate a profit eventually, or else investors will move on and the company will wither away.

Despite being in the age of tech-stock blue-sky investing, many investors still adopt a more traditional strategy; buying shares in profitable companies like Walmart (NYSE:WMT). While this doesn't necessarily speak to whether it's undervalued, the profitability of the business is enough to warrant some appreciation - especially if its growing.

Walmart's Earnings Per Share Are Growing

The market is a voting machine in the short term, but a weighing machine in the long term, so you'd expect share price to follow earnings per share (EPS) outcomes eventually. That means EPS growth is considered a real positive by most successful long-term investors. Impressively, Walmart has grown EPS by 18% per year, compound, in the last three years. If the company can sustain that sort of growth, we'd expect shareholders to come away satisfied.

Careful consideration of revenue growth and earnings before interest and taxation (EBIT) margins can help inform a view on the sustainability of the recent profit growth. While we note Walmart achieved similar EBIT margins to last year, revenue grew by a solid 5.7% to US$657b. That's a real positive.

In the chart below, you can see how the company has grown earnings and revenue, over time. To see the actual numbers, click on the chart.

You don't drive with your eyes on the rear-view mirror, so you might be more interested in this free report showing analyst forecasts for Walmart's future profits.

Are Walmart Insiders Aligned With All Shareholders?

Since Walmart has a market capitalisation of US$554b, we wouldn't expect insiders to hold a large percentage of shares. But we do take comfort from the fact that they are investors in the company. Notably, they have an enviable stake in the company, worth US$4.9b. We note that this amounts to 0.9% of the company, which may be small owing to the sheer size of Walmart but it's still worth mentioning. So despite their percentage holding being low, company management still have plenty of reasons to deliver the best outcomes for investors.

Is Walmart Worth Keeping An Eye On?

For growth investors, Walmart's raw rate of earnings growth is a beacon in the night. With EPS growth rates like that, it's hardly surprising to see company higher-ups place confidence in the company through continuing to hold a significant investment. Fast growth and confident insiders should be enough to warrant further research, so it would seem that it's a good stock to follow. You should always think about risks though. Case in point, we've spotted 2 warning signs for Walmart you should be aware of.

There's always the possibility of doing well buying stocks that are not growing earnings and do not have insiders buying shares. But for those who consider these important metrics, we encourage you to check out companies that do have those features. You can access a tailored list of companies which have demonstrated growth backed by significant insider holdings.

Please note the insider transactions discussed in this article refer to reportable transactions in the relevant jurisdiction.

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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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com