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. 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. While a well funded company may sustain losses for years, it will need to generate a profit eventually, or else investors will move on and the company will wither away.

Despite being in the age of tech-stock blue-sky investing, many investors still adopt a more traditional strategy; buying shares in profitable companies like Cummins (NYSE:CMI). 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.

Check out our latest analysis for Cummins

How Fast Is Cummins 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. That makes EPS growth an attractive quality for any company. Impressively, Cummins has grown EPS by 25% 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.

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. It was a year of stability for Cummins as both revenue and EBIT margins remained have been flat over the past year. That's not a major concern but nor does it point to the long term growth we like to see.

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.

While we live in the present moment, there's little doubt that the future matters most in the investment decision process. So why not check this interactive chart depicting future EPS estimates, for Cummins?

Are Cummins Insiders Aligned With All Shareholders?

Since Cummins has a market capitalisation of US$51b, 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$215m. 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.

Is Cummins Worth Keeping An Eye On?

You can't deny that Cummins has grown its earnings per share at a very impressive rate. That's attractive. This EPS growth rate is something the company should be proud of, and so it's no surprise that insiders are holding on to a considerable chunk of shares. 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. However, before you get too excited we've discovered 5 warning signs for Cummins (2 can't be ignored!) that you should be aware of.

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.