Anhui Zhonghuan Environmental Protection Technology Co.,Ltd (SZSE:300692) shareholders that were waiting for something to happen have been dealt a blow with a 25% share price drop in the last month. The drop over the last 30 days has capped off a tough year for shareholders, with the share price down 34% in that time.

After such a large drop in price, Anhui Zhonghuan Environmental Protection TechnologyLtd's price-to-earnings (or "P/E") ratio of 12.8x might make it look like a strong buy right now compared to the market in China, where around half of the companies have P/E ratios above 27x and even P/E's above 48x 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.

As an illustration, earnings have deteriorated at Anhui Zhonghuan Environmental Protection TechnologyLtd over the last year, which is not ideal at all. One possibility is that the P/E is low because investors think the company won't do enough to avoid underperforming the broader market in the near future. If you like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's out of favour.

Does Growth Match The Low P/E?

In order to justify its P/E ratio, Anhui Zhonghuan Environmental Protection TechnologyLtd would need to produce anemic growth that's substantially trailing the market.

Retrospectively, the last year delivered a frustrating 32% decrease to the company's bottom line. This means it has also seen a slide in earnings over the longer-term as EPS is down 2.3% in total over the last three years. Accordingly, shareholders would have felt downbeat about the medium-term rates of earnings growth.

In contrast to the company, the rest of the market is expected to grow by 41% over the next year, which really puts the company's recent medium-term earnings decline into perspective.

With this information, we are not surprised that Anhui Zhonghuan Environmental Protection TechnologyLtd is trading at a P/E lower than the market. Nonetheless, there's no guarantee the P/E has reached a floor yet with earnings going in reverse. There's potential for the P/E to fall to even lower levels if the company doesn't improve its profitability.

The Key Takeaway

Having almost fallen off a cliff, Anhui Zhonghuan Environmental Protection TechnologyLtd's share price has pulled its P/E way down as well. Typically, we'd caution against reading too much into price-to-earnings ratios when settling on investment decisions, though it can reveal plenty about what other market participants think about the company.

We've established that Anhui Zhonghuan Environmental Protection TechnologyLtd maintains its low P/E on the weakness of its sliding earnings over the medium-term, as expected. Right now shareholders are accepting the low P/E as they concede future earnings probably won't provide any pleasant surprises. If recent medium-term earnings trends continue, it's hard to see the share price moving strongly in either direction in the near future under these circumstances.

Having said that, be aware Anhui Zhonghuan Environmental Protection TechnologyLtd is showing 2 warning signs in our investment analysis, and 1 of those is significant.

If these risks are making you reconsider your opinion on Anhui Zhonghuan Environmental Protection TechnologyLtd, explore our interactive list of high quality stocks to get an idea of what else is out there.

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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.