China Pipe Group Limited (HKG:380) shareholders would be excited to see that the share price has had a great month, posting a 26% gain and recovering from prior weakness. Unfortunately, the gains of the last month did little to right the losses of the last year with the stock still down 21% over that time.

Although its price has surged higher, China Pipe Group's price-to-earnings (or "P/E") ratio of 2.2x might still make it look like a strong buy right now compared to the market in Hong Kong, where around half of the companies have P/E ratios above 9x and even P/E's above 19x are quite common. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the highly reduced P/E.

For instance, China Pipe Group's receding earnings in recent times would have to be some food for thought. It might be that many expect the disappointing earnings performance to continue or accelerate, which has repressed the P/E. However, if this doesn't eventuate then existing shareholders may be feeling optimistic about the future direction of the share price.

Check out our latest analysis for China Pipe Group

Is There Any Growth For China Pipe Group?

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

If we review the last year of earnings, dishearteningly the company's profits fell to the tune of 26%. However, a few very strong years before that means that it was still able to grow EPS by an impressive 115% in total over the last three years. Accordingly, while they would have preferred to keep the run going, shareholders would probably welcome the medium-term rates of earnings growth.

Weighing that recent medium-term earnings trajectory against the broader market's one-year forecast for expansion of 23% shows it's noticeably more attractive on an annualised basis.

With this information, we find it odd that China Pipe Group is trading at a P/E lower than the market. Apparently some shareholders believe the recent performance has exceeded its limits and have been accepting significantly lower selling prices.

What We Can Learn From China Pipe Group's P/E?

Even after such a strong price move, China Pipe Group's P/E still trails the rest of the market significantly. We'd say the price-to-earnings ratio's power isn't primarily as a valuation instrument but rather to gauge current investor sentiment and future expectations.

Our examination of China Pipe Group revealed its three-year earnings trends aren't contributing to its P/E anywhere near as much as we would have predicted, given they look better than current market expectations. There could be some major unobserved threats to earnings preventing the P/E ratio from matching this positive performance. At least price risks look to be very low if recent medium-term earnings trends continue, but investors seem to think future earnings could see a lot of volatility.

Plus, you should also learn about this 1 warning sign we've spotted with China Pipe Group.

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.