By buying an index fund, investors can approximate the average market return. But many of us dare to dream of bigger returns, and build a portfolio ourselves. Just take a look at Edison International (NYSE:EIX), which is up 26%, over three years, soundly beating the market return of 13% (not including dividends). On the other hand, the returns haven't been quite so good recently, with shareholders up just 8.1%, including dividends.

With that in mind, it's worth seeing if the company's underlying fundamentals have been the driver of long term performance, or if there are some discrepancies.

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just 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.

Edison International was able to grow its EPS at 1.7% per year over three years, sending the share price higher. In comparison, the 8% per year gain in the share price outpaces the EPS growth. This suggests that, as the business progressed over the last few years, it gained the confidence of market participants. That's not necessarily surprising considering the three-year track record of earnings growth.

You can see below how EPS has changed over time (discover the exact values by clicking on the image).

Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here.

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. 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 Edison International the TSR over the last 3 years was 42%, 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

Edison International shareholders are up 8.1% for the year (even including dividends). But that return falls short of the market. On the bright side, that's still a gain, and it's actually better than the average return of 6% over half a decade This suggests the company might be improving over time. It's always interesting to track share price performance over the longer term. But to understand Edison International better, we need to consider many other factors. Take risks, for example - Edison International has 3 warning signs (and 2 which are potentially serious) we think you should know about.

If you would prefer to check out another company -- one with potentially superior financials -- then do not miss this free list of companies that have proven they can 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.

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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