With a price-to-earnings (or "P/E") ratio of 28.8x IDP Education Limited (ASX:IEL) may be sending bearish signals at the moment, given that almost half of all companies in Australia have P/E ratios under 19x and even P/E's lower than 11x are not unusual. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the elevated P/E.

IDP Education 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 high because investors think this poor earnings performance will turn the corner. If not, then existing shareholders may be extremely nervous about the viability of the share price.

Check out our latest analysis for IDP Education

Want the full picture on analyst estimates for the company? Then our free report on IDP Education will help you uncover what's on the horizon.

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

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

Retrospectively, the last year delivered a frustrating 11% decrease to the company's bottom line. Still, the latest three year period has seen an excellent 235% 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.

Turning to the outlook, the next three years should generate growth of 13% each year as estimated by the analysts watching the company. Meanwhile, the rest of the market is forecast to expand by 18% per year, which is noticeably more attractive.

With this information, we find it concerning that IDP 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. Only the boldest would assume these prices are sustainable as this level of earnings growth is likely to weigh heavily on the share price eventually.

What We Can Learn From IDP Education'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 IDP Education currently trades on a much higher than expected P/E since its forecast growth is lower than the wider market. Right now we are increasingly uncomfortable with the high P/E as the predicted future earnings aren't likely to support such positive sentiment for long. Unless these conditions improve markedly, it's very challenging to accept these prices as being reasonable.

The company's balance sheet is another key area for risk analysis. You can assess many of the main risks through our free balance sheet analysis for IDP Education with six simple checks.

You might be able to find a better investment than IDP Education. If you want a selection of possible candidates, check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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.