Investors in Westinghouse Air Brake Technologies (NYSE:WAB) have seen splendid returns of 262% over the past five years

The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you put in. But on the bright side, you can make far more than 100% on a really good stock. For instance, the price of Westinghouse Air Brake Technologies Corporation (NYSE:WAB) stock is up an impressive 251% over the last five years. Meanwhile the share price is 1.5% higher than it was a week ago.

Let's take a look at the underlying fundamentals over the longer term, and see if they've been consistent with shareholders returns.

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To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

Over half a decade, Westinghouse Air Brake Technologies managed to grow its earnings per share at 22% a year. This EPS growth is slower than the share price growth of 29% 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.

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

We know that Westinghouse Air Brake Technologies 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?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. 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. We note that for Westinghouse Air Brake Technologies the TSR over the last 5 years was 262%, which is better than the share price return mentioned above. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

It's good to see that Westinghouse Air Brake Technologies has rewarded shareholders with a total shareholder return of 28% in the last twelve months. That's including the dividend. However, that falls short of the 29% TSR per annum it has made for shareholders, each year, over five years. 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. Consider for instance, the ever-present spectre of investment risk. We've identified 1 warning sign with Westinghouse Air Brake Technologies , and understanding them should be part of your investment process.

But note: Westinghouse Air Brake Technologies may not be the best stock to buy. So take a peek at this free list of interesting companies with past earnings growth (and further growth forecast).

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.