When close to half the companies in the United States have price-to-earnings ratios (or "P/E's") below 16x, you may consider Grand Canyon Education, Inc. (NASDAQ:LOPE) as a stock to potentially avoid with its 18.9x 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 as high as it is.

With its earnings growth in positive territory compared to the declining earnings of most other companies, Grand Canyon Education has been doing quite well of late. It seems that many are expecting the company to continue defying the broader market adversity, which has increased investors' willingness to pay up for the stock. If not, then existing shareholders might be a little nervous about the viability of the share price.

Does Growth Match The High P/E?

There's an inherent assumption that a company should outperform the market for P/E ratios like Grand Canyon Education's to be considered reasonable.

Retrospectively, the last year delivered an exceptional 20% gain to the company's bottom line. EPS has also lifted 28% in aggregate from three years ago, mostly thanks to the last 12 months of growth. So we can start by confirming that the company has actually done a good job of growing earnings over that time.

Turning to the outlook, the next year should generate growth of 10% as estimated by the three analysts watching the company. With the market predicted to deliver 12% growth , the company is positioned for a weaker earnings result.

With this information, we find it concerning that Grand Canyon Education is trading at a P/E higher than the market. It seems most investors are hoping for a turnaround in the company's business prospects, but the analyst cohort is not so confident this will happen. There's a good chance these shareholders are setting themselves up for future disappointment if the P/E falls to levels more in line with the growth outlook.

The Key Takeaway

Generally, our preference is to limit the use of the price-to-earnings ratio to establishing what the market thinks about the overall health of a company.

Our examination of Grand Canyon Education's analyst forecasts revealed that its inferior earnings outlook isn't impacting its high P/E anywhere near as much as we would have predicted. When we see a weak earnings outlook with slower than market growth, we suspect the share price is at risk of declining, sending the high P/E lower. Unless these conditions improve markedly, it's very challenging to accept these prices as being reasonable.

You should always think about risks. Case in point, we've spotted 1 warning sign for Grand Canyon Education you should be aware of.

It's important to make sure you look for a great company, not just the first idea you come across. So take a peek at this free list of interesting companies with strong recent earnings growth (and a low P/E).

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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