When close to half the companies in the United States have price-to-earnings ratios (or "P/E's") below 16x, you may consider Equifax Inc. (NYSE:EFX) as a stock to avoid entirely with its 53.6x P/E ratio. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's so lofty.

Equifax has been struggling lately as its earnings have declined faster than most other companies. One possibility is that the P/E is high because investors think the company will turn things around completely and accelerate past most others in the market. If not, then existing shareholders may be very nervous about the viability of the share price.

If you'd like to see what analysts are forecasting going forward, you should check out our free report on Equifax.

Does Growth Match The High P/E?

The only time you'd be truly comfortable seeing a P/E as steep as Equifax's is when the company's growth is on track to outshine the market decidedly.

Retrospectively, the last year delivered a frustrating 5.4% decrease to the company's bottom line. As a result, earnings from three years ago have also fallen 9.3% overall. So unfortunately, we have to acknowledge that the company has not done a great job of growing earnings over that time.

Turning to the outlook, the next three years should generate growth of 33% per annum as estimated by the analysts watching the company. That's shaping up to be materially higher than the 10.0% per annum growth forecast for the broader market.

In light of this, it's understandable that Equifax's P/E sits above the majority of other companies. Apparently shareholders aren't keen to offload something that is potentially eyeing a more prosperous future.

The Bottom Line On Equifax's P/E

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.

As we suspected, our examination of Equifax's analyst forecasts revealed that its superior earnings outlook is contributing to its high P/E. Right now shareholders are comfortable with the P/E as they are quite confident future earnings aren't under threat. It's hard to see the share price falling strongly in the near future under these circumstances.

There are also other vital risk factors to consider before investing and we've discovered 1 warning sign for Equifax that you should be aware of.

Of course, you might also be able to find a better stock than Equifax. So you may wish to see this free collection of other companies that have reasonable P/E ratios and have grown earnings strongly.

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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