Xiamen Yanjan New Material Co., Ltd. (SZSE:300658) shareholders have had their patience rewarded with a 27% share price jump in the last month. Not all shareholders will be feeling jubilant, since the share price is still down a very disappointing 18% in the last twelve months.

Since its price has surged higher, Xiamen Yanjan New Material may be sending very bearish signals at the moment with a price-to-earnings (or "P/E") ratio of 71.1x, since almost half of all companies in China have P/E ratios under 29x and even P/E's lower than 18x are not unusual. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's so lofty.

For example, consider that Xiamen Yanjan New Material's financial performance has been poor lately as its earnings have been in decline. It might be that many expect the company to still outplay most other companies over the coming period, which has kept the P/E from collapsing. If not, then existing shareholders may be quite nervous about the viability of the share price.

Is There Enough Growth For Xiamen Yanjan New Material?

Xiamen Yanjan New Material's P/E ratio would be typical for a company that's expected to deliver very strong growth, and importantly, perform much better than the market.

Retrospectively, the last year delivered a frustrating 36% decrease to the company's bottom line. At least EPS has managed not to go completely backwards from three years ago in aggregate, thanks to the earlier period of growth. Therefore, it's fair to say that earnings growth has been inconsistent recently for the company.

Comparing that to the market, which is predicted to deliver 36% growth in the next 12 months, the company's momentum is weaker based on recent medium-term annualised earnings results.

In light of this, it's alarming that Xiamen Yanjan New Material's P/E sits above the majority of other companies. It seems most investors are ignoring the fairly limited recent growth rates and are hoping for a turnaround in the company's business prospects. Only the boldest would assume these prices are sustainable as a continuation of recent earnings trends is likely to weigh heavily on the share price eventually.

What We Can Learn From Xiamen Yanjan New Material's P/E?

Shares in Xiamen Yanjan New Material have built up some good momentum lately, which has really inflated its P/E. It's argued the price-to-earnings ratio is an inferior measure of value within certain industries, but it can be a powerful business sentiment indicator.

Our examination of Xiamen Yanjan New Material revealed its three-year earnings trends aren't impacting its high P/E anywhere near as much as we would have predicted, given they look worse than current market expectations. Right now we are increasingly uncomfortable with the high P/E as this earnings performance isn't likely to support such positive sentiment for long. If recent medium-term earnings trends continue, it will place shareholders' investments at significant risk and potential investors in danger of paying an excessive premium.

It is also worth noting that we have found 4 warning signs for Xiamen Yanjan New Material (2 are potentially serious!) that you need to take into consideration.

Of course, you might find a fantastic investment by looking at a few good candidates. So take a peek at this free list of companies with a strong growth track record, trading on a low P/E.

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