Investors in NRG Energy (NYSE:NRG) have made a stellar return of 167% over the past five years

The most you can lose on any stock (assuming you don't use leverage) is 100% of your money. But on the bright side, you can make far more than 100% on a really good stock. Long term NRG Energy, Inc. (NYSE:NRG) shareholders would be well aware of this, since the stock is up 146% in five years. In the last week shares have slid back 1.5%.

So let's assess the underlying fundamentals over the last 5 years and see if they've moved in lock-step with shareholder returns.

View our latest analysis for NRG Energy

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.

During the five years of share price growth, NRG Energy moved from a loss to profitability. That kind of transition can be an inflection point that justifies a strong share price gain, just as we have seen here.

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

We know that NRG Energy has improved its bottom line over the last three years, but what does the future have in store? It might be well worthwhile taking a look at our free report on how its financial position has changed over time.

What About Dividends?

As well as measuring the share price return, investors should also consider the total shareholder return (TSR). The TSR is a return calculation that accounts for the value of cash dividends (assuming that any dividend received was reinvested) and the calculated value of any discounted capital raisings and spin-offs. Arguably, the TSR gives a more comprehensive picture of the return generated by a stock. We note that for NRG Energy the TSR over the last 5 years was 167%, which is better than the share price return mentioned above. This is largely a result of its dividend payments!

A Different Perspective

NRG Energy shareholders gained a total return of 0.9% during the year. Unfortunately this falls short of the market return. On the bright side, the longer term returns (running at about 22% a year, over half a decade) look better. It may well be that this is a business worth popping on the watching, given the continuing positive reception, over time, from the market. 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. Even so, be aware that NRG Energy is showing 4 warning signs in our investment analysis , and 1 of those shouldn't be ignored...

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 US 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.