When you buy a stock there is always a possibility that it could drop 100%. But on the bright side, if you buy shares in a high quality company at the right price, you can gain well over 100%. For instance, the price of Community Health Systems, Inc. (NYSE:CYH) stock is up an impressive 138% over the last five years. In more good news, the share price has risen 61% in thirty days. This could be related to the recent financial results that were recently released - you could check the most recent data by reading our company report.

Since the stock has added US$131m to its market cap in the past week alone, let's see if underlying performance has been driving long-term returns.

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 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.

Community Health Systems has made a profit in the past. However, it made a loss in the last twelve months, suggesting profit may be an unreliable metric at this stage. So it might be better to look at other metrics to try to understand the share price.

The revenue reduction of 0.8% per year is not a positive. So it seems one might have to take closer look at earnings and revenue trends to see how they might influence the share price.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

We consider it positive that insiders have made significant purchases in the last year. Even so, future earnings will be far more important to whether current shareholders make money. You can see what analysts are predicting for Community Health Systems in this interactive graph of future profit estimates.

A Different Perspective

Community Health Systems provided a TSR of 9.9% over the last twelve months. But that was short of the market average. It's probably a good sign that the company has an even better long term track record, having provided shareholders with an annual TSR of 19% over five years. It's quite possible the business continues to execute with prowess, even as the share price gains are slowing. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. For example, we've discovered 2 warning signs for Community Health Systems (1 is potentially serious!) that you should be aware of before investing here.

Community Health Systems is not the only stock insiders are buying. So take a peek at this free list of small cap companies at attractive valuations which insiders have been 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