The five-year shareholder returns and company earnings persist lower as Proto Labs (NYSE:PRLB) stock falls a further 7.4% in past week

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Long term investing works well, but it doesn't always work for each individual stock. We really hate to see fellow investors lose their hard-earned money. For example, we sympathize with anyone who was caught holding Proto Labs, Inc. (NYSE:PRLB) during the five years that saw its share price drop a whopping 76%. And it's not just long term holders hurting, because the stock is down 53% in the last year. Furthermore, it's down 30% in about a quarter. That's not much fun for holders.

Since Proto Labs has shed US$53m from its value in the past 7 days, let's see if the longer term decline has been driven by the business' economics.

Check out our latest analysis for Proto Labs

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. 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 over which the share price declined, Proto Labs' earnings per share (EPS) dropped by 13% each year. This reduction in EPS is less than the 25% annual reduction in the share price. So it seems the market was too confident about the business, in the past.

The company's earnings per share (over time) is depicted in the image below (click to see the exact numbers).

earnings-per-share-growth
earnings-per-share-growth

This free interactive report on Proto Labs' earnings, revenue and cash flow is a great place to start, if you want to investigate the stock further.

A Different Perspective

While the broader market lost about 22% in the twelve months, Proto Labs shareholders did even worse, losing 53%. However, it could simply be that the share price has been impacted by broader market jitters. It might be worth keeping an eye on the fundamentals, in case there's a good opportunity. Unfortunately, last year's performance may indicate unresolved challenges, given that it was worse than the annualised loss of 12% over the last half decade. Generally speaking long term share price weakness can be a bad sign, though contrarian investors might want to research the stock in hope of a turnaround. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. For instance, we've identified 2 warning signs for Proto Labs (1 can't be ignored) that you should be aware of.

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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.

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.

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