Guangdong Dongfang Precision Science & Technology Co., Ltd. (SZSE:002611) shareholders would be excited to see that the share price has had a great month, posting a 25% gain and recovering from prior weakness. Taking a wider view, although not as strong as the last month, the full year gain of 21% is also fairly reasonable.

Although its price has surged higher, Guangdong Dongfang Precision Science & Technology's price-to-earnings (or "P/E") ratio of 20.3x might still make it look like a buy right now compared to the market in China, where around half of the companies have P/E ratios above 28x and even P/E's above 53x are quite common. However, the P/E might be low for a reason and it requires further investigation to determine if it's justified.

For instance, Guangdong Dongfang Precision Science & Technology's receding earnings in recent times would have to be some food for thought. 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.

What Are Growth Metrics Telling Us About The Low P/E?

The only time you'd be truly comfortable seeing a P/E as low as Guangdong Dongfang Precision Science & Technology's is when the company's growth is on track to lag the market.

Retrospectively, the last year delivered a frustrating 22% decrease to the company's bottom line. This has erased any of its gains during the last three years, with practically no change in EPS being achieved in total. 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 downward momentum based on recent medium-term earnings results is a sobering picture.

With this information, we are not surprised that Guangdong Dongfang Precision Science & Technology is trading at a P/E lower than the market. However, we think shrinking earnings are unlikely to lead to a stable P/E over the longer term, which could set up shareholders for future disappointment. There's potential for the P/E to fall to even lower levels if the company doesn't improve its profitability.

What We Can Learn From Guangdong Dongfang Precision Science & Technology's P/E?

Despite Guangdong Dongfang Precision Science & Technology's shares building up a head of steam, its P/E still lags most other companies. While the price-to-earnings ratio shouldn't be the defining factor in whether you buy a stock or not, it's quite a capable barometer of earnings expectations.

We've established that Guangdong Dongfang Precision Science & Technology 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.

You should always think about risks. Case in point, we've spotted 1 warning sign for Guangdong Dongfang Precision Science & Technology you should be aware of.

If these risks are making you reconsider your opinion on Guangdong Dongfang Precision Science & Technology, 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.

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