The most you can lose on any stock (assuming you don't use leverage) is 100% of your money. But when you pick a company that is really flourishing, you can make more than 100%. For example, the NRG Energy, Inc. (NYSE:NRG) share price has soared 101% return in just a single year. In the last week shares have slid back 2.3%. And shareholders have also done well over the long term, with an increase of 78% in the last three years.

Now it's worth having a look at the company's fundamentals too, because that will help us determine if the long term shareholder return has matched the performance of the underlying business.

There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. One way to examine how market sentiment has changed over time is to look at the interaction between a company's share price and its earnings per share (EPS).

During the last year NRG Energy grew its earnings per share, moving from a loss to a profit.

The result looks like a strong improvement to us, so we're not surprised the market likes the growth. Generally speaking the profitability inflection point is a great time to research a company closely, lest you miss an opportunity to profit.

The graphic below depicts how EPS has changed over time (unveil the exact values by clicking on the image).

It is of course excellent to see how NRG Energy has grown profits over the years, but the future is more important for shareholders. Take a more thorough look at NRG Energy's financial health with this free report on its balance sheet.

What About Dividends?

It is important to consider the total shareholder return, as well as the share price return, for any given stock. The TSR incorporates the value of any spin-offs or discounted capital raisings, along with any dividends, based on the assumption that the dividends are reinvested. So for companies that pay a generous dividend, the TSR is often a lot higher than the share price return. In the case of NRG Energy, it has a TSR of 107% for the last 1 year. That exceeds its share price return that we previously mentioned. This is largely a result of its dividend payments!

A Different Perspective

We're pleased to report that NRG Energy shareholders have received a total shareholder return of 107% over one year. Of course, that includes the dividend. That gain is better than the annual TSR over five years, which is 19%. Therefore it seems like sentiment around the company has been positive lately. In the best case scenario, this may hint at some real business momentum, implying that now could be a great time to delve deeper. 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 3 warning signs for NRG Energy you should be aware of, and 2 of them are concerning.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of companies we expect will grow earnings.

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

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