Is Now The Time To Put T-Mobile US (NASDAQ:TMUS) On Your Watchlist?

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. Unfortunately, these high risk investments often have little probability of ever paying off, and many investors pay a price to learn their lesson. A loss-making company is yet to prove itself with profit, and eventually the inflow of external capital may dry up.

So if this idea of high risk and high reward doesn't suit, you might be more interested in profitable, growing companies, like T-Mobile US (NASDAQ:TMUS). 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.

View our latest analysis for T-Mobile US

How Fast Is T-Mobile US Growing?

If you believe that markets are even vaguely efficient, then over the long term you'd expect a company's share price to follow its earnings per share (EPS) outcomes. So it makes sense that experienced investors pay close attention to company EPS when undertaking investment research. Recognition must be given to the that T-Mobile US has grown EPS by 37% per year, over the last three years. While that sort of growth rate isn't sustainable for long, it certainly catches the eye of prospective investors.

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. It seems T-Mobile US is pretty stable, since revenue and EBIT margins are pretty flat year on year. While this doesn't ring alarm bells, it may not meet the expectations of growth-minded investors.

The chart below shows how the company's bottom and top lines have progressed over time. Click on the chart to see the exact numbers.

Of course the knack is to find stocks that have their best days in the future, not in the past. You could base your opinion on past performance, of course, but you may also want to check this interactive graph of professional analyst EPS forecasts for T-Mobile US.

Are T-Mobile US Insiders Aligned With All Shareholders?

Since T-Mobile US has a market capitalisation of US$225b, we wouldn't expect insiders to hold a large percentage of shares. But we are reassured by the fact they have invested in the company. Notably, they have an enviable stake in the company, worth US$997m. This comes in at 0.4% of shares in the company, which is a fair amount of a business of this size. So despite their percentage holding being low, company management still have plenty of reasons to deliver the best outcomes for investors.

Is T-Mobile US Worth Keeping An Eye On?

T-Mobile US' earnings have taken off in quite an impressive fashion. 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. Even so, be aware that T-Mobile US is showing 2 warning signs in our investment analysis , you should know about...

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.