There wouldn't be many who think Alamo Group Inc.'s (NYSE:ALG) price-to-earnings (or "P/E") ratio of 19.1x is worth a mention when the median P/E in the United States is similar at about 18x. Although, it's not wise to simply ignore the P/E without explanation as investors may be disregarding a distinct opportunity or a costly mistake.

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Alamo Group could be doing better as its earnings have been going backwards lately while most other companies have been seeing positive earnings growth. One possibility is that the P/E is moderate because investors think this poor earnings performance will turn around. If not, then existing shareholders may be a little nervous about the viability of the share price.

See our latest analysis for Alamo Group

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What Are Growth Metrics Telling Us About The P/E?

Alamo Group's P/E ratio would be typical for a company that's only expected to deliver moderate growth, and importantly, perform in line with the market.

Taking a look back first, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 15%. Still, the latest three year period has seen an excellent 42% overall rise in EPS, in spite of its unsatisfying short-term performance. Although it's been a bumpy ride, it's still fair to say the earnings growth recently has been more than adequate for the company.

Shifting to the future, estimates from the four analysts covering the company suggest earnings should grow by 2.2% over the next year. Meanwhile, the rest of the market is forecast to expand by 14%, which is noticeably more attractive.

With this information, we find it interesting that Alamo Group is trading at a fairly similar P/E to the market. Apparently many investors in the company are less bearish than analysts indicate and aren't willing to let go of their stock right now. These shareholders may be setting themselves up for future disappointment if the P/E falls to levels more in line with the growth outlook.

The Final Word

Using the price-to-earnings ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

Our examination of Alamo Group's analyst forecasts revealed that its inferior earnings outlook isn't impacting its P/E as much as we would have predicted. Right now we are uncomfortable with the P/E as the predicted future earnings aren't likely to support a more positive sentiment for long. This places shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

It is also worth noting that we have found 1 warning sign for Alamo Group that you need to take into consideration.

If P/E ratios interest you, you may wish to see this free collection of other companies with strong earnings growth and low P/E ratios.

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.