With a price-to-earnings (or "P/E") ratio of 11.8x Otter Tail Corporation (NASDAQ:OTTR) may be sending bullish signals at the moment, given that almost half of all companies in the United States have P/E ratios greater than 17x and even P/E's higher than 32x are not unusual. However, the P/E might be low for a reason and it requires further investigation to determine if it's justified.

Otter Tail certainly has been doing a good job lately as its earnings growth has been positive while most other companies have been seeing their earnings go backwards. One possibility is that the P/E is low because investors think the company's earnings are going to fall away like everyone else's soon. If not, then existing shareholders have reason to be quite optimistic about the future direction of the share price.

Does Growth Match The Low P/E?

There's an inherent assumption that a company should underperform the market for P/E ratios like Otter Tail's to be considered reasonable.

If we review the last year of earnings growth, the company posted a worthy increase of 11%. This was backed up an excellent period prior to see EPS up by 195% in total over the last three years. So we can start by confirming that the company has done a great job of growing earnings over that time.

Turning to the outlook, the next three years should bring diminished returns, with earnings decreasing 19% each year as estimated by the two analysts watching the company. Meanwhile, the broader market is forecast to expand by 9.9% per annum, which paints a poor picture.

With this information, we are not surprised that Otter Tail is trading at a P/E lower than the market. However, shrinking earnings are unlikely to lead to a stable P/E over the longer term. There's potential for the P/E to fall to even lower levels if the company doesn't improve its profitability.

What We Can Learn From Otter Tail's P/E?

Typically, we'd caution against reading too much into price-to-earnings ratios when settling on investment decisions, though it can reveal plenty about what other market participants think about the company.

We've established that Otter Tail maintains its low P/E on the weakness of its forecast for sliding earnings, as expected. Right now shareholders are accepting the low P/E as they concede future earnings probably won't provide any pleasant surprises. It's hard to see the share price rising strongly in the near future under these circumstances.

And what about other risks? Every company has them, and we've spotted 2 warning signs for Otter Tail (of which 1 is a bit concerning!) you should know about.

If these risks are making you reconsider your opinion on Otter Tail, explore our interactive list of high quality stocks to get an idea of what else is out there.

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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.

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