It's common for many investors, especially those who are inexperienced, to buy shares in companies with a good story even if these companies are loss-making. 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. 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 TransDigm Group (NYSE:TDG). 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 TransDigm Group

TransDigm Group's Earnings Per Share Are Growing

If a company can keep growing earnings per share (EPS) long enough, its share price should eventually follow. That makes EPS growth an attractive quality for any company. It certainly is nice to see that TransDigm Group has managed to grow EPS by 33% per year over three years. If growth like this continues on into the future, then shareholders will have plenty to smile about.

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. TransDigm Group maintained stable EBIT margins over the last year, all while growing revenue 17% to US$8.2b. That's progress.

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.

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 TransDigm Group's future EPS 100% free.

Are TransDigm Group Insiders Aligned With All Shareholders?

Owing to the size of TransDigm Group, we wouldn't expect insiders to hold a significant proportion of the company. But we are reassured by the fact they have invested in the company. Indeed, they have a considerable amount of wealth invested in it, currently valued at US$252m. While that is a lot of skin in the game, we note this holding only totals to 0.3% of the business, which is a result of the company being so large. So despite their percentage holding being low, company management still have plenty of reasons to deliver the best outcomes for investors.

Should You Add TransDigm Group To Your Watchlist?

If you believe that share price follows earnings per share you should definitely be delving further into TransDigm Group's strong EPS growth. 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. The growth and insider confidence is looked upon well and so it's worthwhile to investigate further with a view to discern the stock's true value. It is worth noting though that we have found 3 warning signs for TransDigm Group (2 are significant!) that you need to take into consideration.

Although TransDigm Group 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.