PKU HealthCare Corp.,Ltd.'s (SZSE:000788) price-to-earnings (or "P/E") ratio of 41.2x might make it look like a sell right now compared to the market in China, where around half of the companies have P/E ratios below 30x and even P/E's below 18x are quite common. 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.

Earnings have risen firmly for PKU HealthCareLtd recently, which is pleasing to see. One possibility is that the P/E is high because investors think this respectable earnings growth will be enough to outperform the broader market in the near future. If not, then existing shareholders may be a little nervous about the viability of the share price.

Is There Enough Growth For PKU HealthCareLtd?

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

Taking a look back first, we see that the company grew earnings per share by an impressive 19% last year. EPS has also lifted 30% in aggregate from three years ago, mostly thanks to the last 12 months of growth. Accordingly, shareholders would have probably been satisfied with the medium-term rates of earnings growth.

This is in contrast to the rest of the market, which is expected to grow by 38% over the next year, materially higher than the company's recent medium-term annualised growth rates.

With this information, we find it concerning that PKU HealthCareLtd is trading at a P/E higher than the market. It seems most investors are ignoring the fairly limited recent growth rates and are hoping for a turnaround in the company's business prospects. There's a good chance existing shareholders are setting themselves up for future disappointment if the P/E falls to levels more in line with recent growth rates.

What We Can Learn From PKU HealthCareLtd's P/E?

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.

We've established that PKU HealthCareLtd currently trades on a much higher than expected P/E since its recent three-year growth is lower than the wider market forecast. When we see weak earnings with slower than market growth, we suspect the share price is at risk of declining, sending the high P/E lower. Unless the recent medium-term conditions improve markedly, it's very challenging to accept these prices as being reasonable.

A lot of potential risks can sit within a company's balance sheet. Our free balance sheet analysis for PKU HealthCareLtd with six simple checks will allow you to discover any risks that could be an issue.

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.

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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.