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. Sometimes these stories can cloud the minds of investors, leading them to invest with their emotions rather than on the merit of good company fundamentals. Loss making companies can act like a sponge for capital - so investors should be cautious that they're not throwing good money after bad.

So if this idea of high risk and high reward doesn't suit, you might be more interested in profitable, growing companies, like American Express (NYSE:AXP). Now this is not to say that the company presents the best investment opportunity around, but profitability is a key component to success in business.

How Quickly Is American Express Increasing Earnings Per Share?

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. So it makes sense that experienced investors pay close attention to company EPS when undertaking investment research. Impressively, American Express has grown EPS by 26% per year, compound, in the last three years. As a general rule, we'd say that if a company can keep up that sort of growth, shareholders will be beaming.

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. Our analysis has highlighted that American Express' revenue from operations did not account for all of their revenue in the previous 12 months, so our analysis of its margins might not accurately reflect the underlying business. While we note American Express achieved similar EBIT margins to last year, revenue grew by a solid 9.3% to US$57b. That's a real positive.

The chart below shows how the company's bottom and top lines have progressed over time. To see the actual numbers, click on the chart.

The trick, as an investor, is to find companies that are going to perform well in the future, not just in the past. While crystal balls don't exist, you can check our visualization of consensus analyst forecasts for American Express' future EPS 100% free.

Are American Express Insiders Aligned With All Shareholders?

Owing to the size of American Express, we wouldn't expect insiders to hold a significant proportion of the company. But thanks to their investment in the company, it's pleasing to see that there are still incentives to align their actions with the shareholders. Notably, they have an enviable stake in the company, worth US$221m. We note that this amounts to 0.1% of the company, which may be small owing to the sheer size of American Express but it's still worth mentioning. This still shows shareholders there is a degree of alignment between management and themselves.

Is American Express Worth Keeping An Eye On?

For growth investors, American Express' 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 still need to take note of risks, for example - American Express has 1 warning sign we think you should be aware of.

Although American Express certainly looks good, it may appeal to more investors if insiders were buying up shares. If you like to see companies with more skin in the game, then check out this handpicked selection of companies that not only boast of strong growth but have strong insider backing.

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.