Investors are often guided by the idea of discovering 'the next big thing', even if that means buying 'story stocks' without any revenue, let alone profit. But as Peter Lynch said in One Up On Wall Street, 'Long shots almost never pay off.' Loss-making companies are always racing against time to reach financial sustainability, so investors in these companies may be taking on more risk than they should.

If this kind of company isn't your style, you like companies that generate revenue, and even earn profits, then you may well be interested in T-Mobile US (NASDAQ:TMUS). Even if this company is fairly valued by the market, investors would agree that generating consistent profits will continue to provide T-Mobile US with the means to add long-term value to shareholders.

T-Mobile US' Earnings Per Share Are Growing

If a company can keep growing earnings per share (EPS) long enough, its share price should eventually follow. So it makes sense that experienced investors pay close attention to company EPS when undertaking investment research. To the delight of shareholders, T-Mobile US has achieved impressive annual EPS growth of 49%, compound, over the last three years. Growth that fast may well be fleeting, but it should be more than enough to pique the interest of the wary stock pickers.

One way to double-check a company's growth is to look at how its revenue, and earnings before interest and tax (EBIT) margins are changing. The good news is that T-Mobile US is growing revenues, and EBIT margins improved by 2.4 percentage points to 22%, over the last year. Ticking those two boxes is a good sign of growth, in our book.

The chart below shows how the company's bottom and top lines have progressed over time. For finer detail, click on the image.

Fortunately, we've got access to analyst forecasts of T-Mobile US' future profits. You can do your own forecasts without looking, or you can take a peek at what the professionals are predicting.

Are T-Mobile US Insiders Aligned With All Shareholders?

Since T-Mobile US has a market capitalisation of US$246b, we wouldn't expect insiders to hold a large percentage of shares. 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$947m. This comes in at 0.4% of shares in the company, which is a fair amount of a business of this size. This should still be a great incentive for management to maximise shareholder value.

Should You Add T-Mobile US To Your Watchlist?

T-Mobile US' earnings per share have been soaring, with growth rates sky high. That sort of growth is nothing short of eye-catching, and the large investment held by insiders should certainly brighten the view of the company. The hope is, of course, that the strong growth marks a fundamental improvement in the business economics. Based on the sum of its parts, we definitely think its worth watching T-Mobile US very closely. Still, you should learn about the 2 warning signs we've spotted with T-Mobile US.

Although T-Mobile US 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.