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 a lighter note, a good company can see its share price rise well over 100%. For example, the Flex Ltd. (NASDAQ:FLEX) share price has soared 200% in the last half decade. Most would be very happy with that. Also pleasing for shareholders was the 29% gain in the last three months.

Since the long term performance has been good but there's been a recent pullback of 3.3%, let's check if the fundamentals match the share price.

Check out our latest analysis for Flex

In his essay The Superinvestors of Graham-and-Doddsville Warren Buffett described how share prices do not always rationally reflect the value of a business. 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 last half decade, Flex became profitable. That kind of transition can be an inflection point that justifies a strong share price gain, just as we have seen here. Since the company was unprofitable five years ago, but not three years ago, it's worth taking a look at the returns in the last three years, too. Indeed, the Flex share price has gained 130% in three years. Meanwhile, EPS is up 2.6% per year. This EPS growth is lower than the 32% average annual increase in the share price over three years. So one can reasonably conclude the market is more enthusiastic about the stock than it was three years ago.

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

We know that Flex has improved its bottom line lately, but is it going to grow revenue? This free report showing analyst revenue forecasts should help you figure out if the EPS growth can be sustained.

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 Flex the TSR over the last 5 years was 313%, which is better than the share price return mentioned above. This is largely a result of its dividend payments!

A Different Perspective

It's nice to see that Flex shareholders have received a total shareholder return of 100% over the last year. And that does include the dividend. That's better than the annualised return of 33% over half a decade, implying that the company is doing better recently. Given the share price momentum remains strong, it might be worth taking a closer look at the stock, lest you miss an opportunity. 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. To that end, you should be aware of the 2 warning signs we've spotted with Flex .

If you are like me, then you will not want to miss this free list of undervalued small caps that insiders are 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.