GATX's (NYSE:GATX) investors will be pleased with their splendid 116% return over the last five years

When we invest, we're generally looking for stocks that outperform the market average. Buying under-rated businesses is one path to excess returns. For example, the GATX Corporation (NYSE:GATX) share price is up 96% in the last 5 years, clearly besting the market return of around 66% (ignoring dividends).

So let's investigate and see if the longer term performance of the company has been in line with the underlying business' progress.

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While the efficient markets hypothesis continues to be taught by some, it has been proven that markets are over-reactive dynamic systems, and investors are not always rational. 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 five years of share price growth, GATX achieved compound earnings per share (EPS) growth of 12% per year. This EPS growth is slower than the share price growth of 14% per year, over the same period. This suggests that market participants hold the company in higher regard, these days. And that's hardly shocking given the track record of growth.

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

We know that GATX has improved its bottom line lately, but is it going to grow revenue? You could check out this free report showing analyst revenue forecasts.

What About Dividends?

As well as measuring the share price return, investors should also consider the total shareholder return (TSR). 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. It's fair to say that the TSR gives a more complete picture for stocks that pay a dividend. As it happens, GATX's TSR for the last 5 years was 116%, which exceeds the share price return mentioned earlier. This is largely a result of its dividend payments!

A Different Perspective

Investors in GATX had a tough year, with a total loss of 4.2% (including dividends), against a market gain of about 12%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. On the bright side, long term shareholders have made money, with a gain of 17% per year over half a decade. If the fundamental data continues to indicate long term sustainable growth, the current sell-off could be an opportunity worth considering. 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. Like risks, for instance. Every company has them, and we've spotted 3 warning signs for GATX (of which 1 can't be ignored!) you should know about.

We will like GATX better if we see some big insider buys. While we wait, check out this free list of undervalued stocks (mostly small caps) with considerable, recent, 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.