When you buy shares in a company, it's worth keeping in mind the possibility that it could fail, and you could lose your money. But on a lighter note, a good company can see its share price rise well over 100%. Long term Advanced Energy Industries, Inc. (NASDAQ:AEIS) shareholders would be well aware of this, since the stock is up 149% in five years. We note the stock price is up 2.4% in the last seven days.

Check out our latest analysis for Advanced Energy Industries

While the efficient markets hypothesis continues to be taught by some, it has been proven that markets are over-reactive dynamic systems, and investors are not always rational. One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

During five years of share price growth, Advanced Energy Industries achieved compound earnings per share (EPS) growth of 16% per year. This EPS growth is lower than the 20% average annual increase in the share price. So it's fair to assume the market has a higher opinion of the business than it did five years ago. That's not necessarily surprising considering the five-year track record of earnings growth.

The company's earnings per share (over time) is depicted in the image below (click to see the exact numbers).

It's probably worth noting we've seen significant insider buying in the last quarter, which we consider a positive. On the other hand, we think the revenue and earnings trends are much more meaningful measures of the business. Dive deeper into the earnings by checking this interactive graph of Advanced Energy Industries' earnings, revenue and cash flow.

A Different Perspective

Advanced Energy Industries provided a TSR of 41% over the year (including dividends). That's fairly close to the broader market return. That gain looks pretty satisfying, and it is even better than the five-year TSR of 20% per year. Even if the share price growth slows down from here, there's a good chance that this is business worth watching in the long term. If you want to research this stock further, the data on insider buying is an obvious place to start. You can click here to see who has been buying shares - and the price they paid.

There are plenty of other companies that have insiders buying up shares. You probably do not want to miss this free list of growing companies that insiders are buying.

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on US exchanges.

This article by Simply Wall St is general in nature. 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.

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