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. 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.

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 Advanced Energy Industries (NASDAQ:AEIS). 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.

See our latest analysis for Advanced Energy Industries

How Quickly Is Advanced Energy Industries Increasing Earnings Per Share?

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, Advanced Energy Industries has achieved impressive annual EPS growth of 41%, compound, over the last three years. While that sort of growth rate isn't sustainable for long, it certainly catches the eye of prospective investors.

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. Advanced Energy Industries maintained stable EBIT margins over the last year, all while growing revenue 17% to US$1.8b. That's progress.

The chart below shows how the company's bottom and top lines have progressed over time. 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 Advanced Energy Industries' future profits.

Are Advanced Energy Industries Insiders Aligned With All Shareholders?

It's a necessity that company leaders act in the best interest of shareholders and so insider investment always comes as a reassurance to the market. Shareholders will be pleased by the fact that insiders own Advanced Energy Industries shares worth a considerable sum. As a matter of fact, their holding is valued at US$27m. That shows significant buy-in, and may indicate conviction in the business strategy. While their ownership only accounts for 0.7%, this is still a considerable amount at stake to encourage the business to maintain a strategy that will deliver value to shareholders.

Is Advanced Energy Industries Worth Keeping An Eye On?

Advanced Energy Industries' 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. At times fast EPS growth is a sign the business has reached an inflection point, so there's a potential opportunity to be had here. Based on the sum of its parts, we definitely think its worth watching Advanced Energy Industries very closely. You should always think about risks though. Case in point, we've spotted 1 warning sign for Advanced Energy Industries 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 free list of them here.

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.