With a price-to-earnings (or "P/E") ratio of 43.1x Wangsu Science & Technology Co.,Ltd. (SZSE:300017) may be sending bearish signals at the moment, given that almost half of all companies in China have P/E ratios under 35x and even P/E's lower than 20x 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.

Recent times have been pleasing for Wangsu Science & TechnologyLtd as its earnings have risen in spite of the market's earnings going into reverse. The P/E is probably high because investors think the company will continue to navigate the broader market headwinds better than most. If not, then existing shareholders might be a little nervous about the viability of the share price.

See our latest analysis for Wangsu Science & TechnologyLtd

Is There Enough Growth For Wangsu Science & TechnologyLtd?

The only time you'd be truly comfortable seeing a P/E as high as Wangsu Science & TechnologyLtd's is when the company's growth is on track to outshine the market.

If we review the last year of earnings growth, the company posted a terrific increase of 120%. However, the latest three year period hasn't been as great in aggregate as it didn't manage to provide any growth at all. Therefore, it's fair to say that earnings growth has been inconsistent recently for the company.

Turning to the outlook, the next year should generate growth of 2.7% as estimated by the five analysts watching the company. Meanwhile, the rest of the market is forecast to expand by 44%, which is noticeably more attractive.

In light of this, it's alarming that Wangsu Science & TechnologyLtd's 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. 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.

The Bottom Line On Wangsu Science & TechnologyLtd'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.

Our examination of Wangsu Science & TechnologyLtd'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. 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. This places shareholders' investments at significant risk and potential investors in danger of paying an excessive premium.

You need to take note of risks, for example - Wangsu Science & TechnologyLtd has 2 warning signs (and 1 which is a bit concerning) we think you should know about.

If you're unsure about the strength of Wangsu Science & TechnologyLtd's 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.