It hasn't been the best quarter for Chart Industries, Inc. (NYSE:GTLS) shareholders, since the share price has fallen 22% in that time. But in stark contrast, the returns over the last half decade have impressed. It's fair to say most would be happy with 115% the gain in that time. Generally speaking the long term returns will give you a better idea of business quality than short periods can. Only time will tell if there is still too much optimism currently reflected in the share price.

In light of the stock dropping 20% in the past week, we want to investigate the longer term story, and see if fundamentals have been the driver of the company's positive five-year return.

In his essay The Superinvestors of Graham-and-Doddsville Warren Buffett described how share prices do not always rationally reflect the value of a business. One imperfect but simple way to consider how the market perception of a company has shifted is to compare the change in the earnings per share (EPS) with the share price movement.

Over half a decade, Chart Industries managed to grow its earnings per share at 14% a year. This EPS growth is reasonably close to the 17% average annual increase in the share price. That suggests that the market sentiment around the company hasn't changed much over that time. Rather, the share price has approximately tracked EPS growth.

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

It's good to see that there was some significant insider buying in the last three months. That's a positive. On the other hand, we think the revenue and earnings trends are much more meaningful measures of the business. It might be well worthwhile taking a look at our free report on Chart Industries' earnings, revenue and cash flow.

A Different Perspective

While the broader market gained around 18% in the last year, Chart Industries shareholders lost 23%. Even the share prices of good stocks drop sometimes, but we want to see improvements in the fundamental metrics of a business, before getting too interested. On the bright side, long term shareholders have made money, with a gain of 17% per year over half a decade. If the fundamental data continues to indicate long term sustainable growth, the current sell-off could be an opportunity worth considering. I find it very interesting to look at share price over the long term as a proxy for business performance. But to truly gain insight, we need to consider other information, too. Case in point: We've spotted 2 warning signs for Chart Industries you should be aware of, and 1 of them is a bit unpleasant.

There are plenty of other companies that have insiders buying up shares. You probably do not want to miss this free list of undervalued small cap 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 American exchanges.

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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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com