The excitement of investing in a company that can reverse its fortunes is a big draw for some speculators, so even companies that have no revenue, no profit, and a record of falling short, can manage to find investors. Unfortunately, these high risk investments often have little probability of ever paying off, and many investors pay a price to learn their lesson. 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 TransDigm Group (NYSE:TDG). 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 TransDigm Group 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. Therefore, there are plenty of investors who like to buy shares in companies that are growing EPS. Recognition must be given to the that TransDigm Group has grown EPS by 49% per year, over the last three years. That sort of growth rarely ever lasts long, but it is well worth paying attention to when it happens.

It's often helpful to take a look at earnings before interest and tax (EBIT) margins, as well as revenue growth, to get another take on the quality of the company's growth. The good news is that TransDigm Group is growing revenues, and EBIT margins improved by 2.1 percentage points to 46%, over the last year. Ticking those two boxes is a good sign of growth, in our book.

You can take a look at the company's revenue and earnings growth trend, in the chart below. For finer detail, click on the image.

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 TransDigm Group's future profits.

Are TransDigm Group Insiders Aligned With All Shareholders?

Since TransDigm Group has a market capitalisation of US$74b, 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$285m. This comes in at 0.4% of shares in the company, which is a fair amount of a business of this size. This still shows shareholders there is a degree of alignment between management and themselves.

Should You Add TransDigm Group To Your Watchlist?

TransDigm Group's earnings per share growth have been climbing higher at an appreciable rate. That EPS growth certainly is attention grabbing, and the large insider ownership only serves to further stoke our interest. The hope is, of course, that the strong growth marks a fundamental improvement in the business economics. So based on this quick analysis, we do think it's worth considering TransDigm Group for a spot on your watchlist. It is worth noting though that we have found 3 warning signs for TransDigm Group (2 are concerning!) that you need to take into consideration.

While opting for stocks without growing earnings and absent insider buying can yield results, for investors valuing these key metrics, here is a carefully selected list of companies in the US with promising growth potential and insider confidence.

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.