The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you put in. But if you buy shares in a really great company, you can more than double your money. For instance the Devon Energy Corporation (NYSE:DVN) share price is 114% higher than it was three years ago. How nice for those who held the stock! In more good news, the share price has risen 13% in thirty days.

Since the stock has added US$1.0b to its market cap in the past week alone, let's see if underlying performance has been driving long-term returns.

There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. By comparing earnings per share (EPS) and share price changes over time, we can get a feel for how investor attitudes to a company have morphed over time.

Devon Energy became profitable within the last three years. That kind of transition can be an inflection point that justifies a strong share price gain, just as we have seen here.

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. That said, we think earnings and revenue growth trends are even more important factors to consider. It might be well worthwhile taking a look at our free report on Devon Energy's earnings, revenue and cash flow.

What About Dividends?

It is important to consider the total shareholder return, as well as the share price return, for any given stock. Whereas the share price return only reflects the change in the share price, the TSR includes the value of dividends (assuming they were reinvested) and the benefit of any discounted capital raising or spin-off. So for companies that pay a generous dividend, the TSR is often a lot higher than the share price return. We note that for Devon Energy the TSR over the last 3 years was 159%, which is better than the share price return mentioned above. And there's no prize for guessing that the dividend payments largely explain the divergence!

A Different Perspective

Devon Energy shareholders are up 5.9% for the year (even including dividends). But that return falls short of the market. If we look back over five years, the returns are even better, coming in at 16% per year for five years. It's quite possible the business continues to execute with prowess, even as the share price gains are slowing. It's always interesting to track share price performance over the longer term. But to understand Devon Energy better, we need to consider many other factors. Consider for instance, the ever-present spectre of investment risk. We've identified 3 warning signs with Devon Energy (at least 1 which is a bit unpleasant) , and understanding them should be part of your investment process.

Devon Energy is not the only stock insiders are buying. So take a peek at this free list of growing companies with insider 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.