Want Want China Holdings Limited (HKG:151) shareholders have had their patience rewarded with a 26% share price jump in the last month. Taking a wider view, although not as strong as the last month, the full year gain of 12% is also fairly reasonable.

Following the firm bounce in price, Want Want China Holdings' price-to-earnings (or "P/E") ratio of 15.2x might make it look like a strong sell right now compared to the market in Hong Kong, where around half of the companies have P/E ratios below 9x and even P/E's below 5x are quite common. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the highly elevated P/E.

Recent times have been advantageous for Want Want China Holdings as its earnings have been rising faster than most other companies. It seems that many are expecting the strong earnings performance to persist, which has raised the P/E. If not, then existing shareholders might be a little nervous about the viability of the share price.

Is There Enough Growth For Want Want China Holdings?

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

Taking a look back first, we see that the company grew earnings per share by an impressive 19% last year. However, the latest three year period hasn't been as great in aggregate as it didn't manage to provide any growth at all. So it appears to us that the company has had a mixed result in terms of growing earnings over that time.

Turning to the outlook, the next three years should generate growth of 6.0% each year as estimated by the analysts watching the company. That's shaping up to be materially lower than the 12% per annum growth forecast for the broader market.

In light of this, it's alarming that Want Want China Holdings' P/E sits above the majority of other companies. Apparently many investors in the company are way more bullish than analysts indicate and aren't willing to let go of their stock at any price. 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.

What We Can Learn From Want Want China Holdings' P/E?

Shares in Want Want China Holdings have built up some good momentum lately, which has really inflated its 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.

We've established that Want Want China Holdings 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.

Don't forget that there may be other risks. For instance, we've identified 1 warning sign for Want Want China Holdings that you should be aware of.

If you're unsure about the strength of Want Want China Holdings' business, why not explore our interactive list of stocks with solid business fundamentals for some other companies you may have missed.

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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.