Ningbo Boway Alloy Material Company Limited (SHSE:601137) shareholders are no doubt pleased to see that the share price has bounced 26% in the last month, although it is still struggling to make up recently lost ground. Unfortunately, the gains of the last month did little to right the losses of the last year with the stock still down 18% over that time.

In spite of the firm bounce in price, Ningbo Boway Alloy Material may still be sending very bullish signals at the moment with its price-to-earnings (or "P/E") ratio of 13x, since almost half of all companies in China have P/E ratios greater than 30x and even P/E's higher than 55x are not unusual. However, the P/E might be quite low for a reason and it requires further investigation to determine if it's justified.

Ningbo Boway Alloy Material certainly has been doing a good job lately as its earnings growth has been positive while most other companies have been seeing their earnings go backwards. It might be that many expect the strong earnings performance to degrade substantially, possibly more than the market, which has repressed the P/E. 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?

There's an inherent assumption that a company should far underperform the market for P/E ratios like Ningbo Boway Alloy Material's to be considered reasonable.

Taking a look back first, we see that the company grew earnings per share by an impressive 95% last year. Pleasingly, EPS has also lifted 66% in aggregate from three years ago, thanks to the last 12 months of growth. Therefore, it's fair to say the earnings growth recently has been superb for the company.

Looking ahead now, EPS is anticipated to climb by 32% during the coming year according to the eight analysts following the company. Meanwhile, the rest of the market is forecast to expand by 41%, which is noticeably more attractive.

With this information, we can see why Ningbo Boway Alloy Material is trading at a P/E lower than the market. It seems most investors are expecting to see limited future growth and are only willing to pay a reduced amount for the stock.

The Final Word

Shares in Ningbo Boway Alloy Material are going to need a lot more upward momentum to get the company's P/E out of its slump. 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.

As we suspected, our examination of Ningbo Boway Alloy Material's analyst forecasts revealed that its inferior earnings outlook is contributing to its low P/E. At this stage investors feel the potential for an improvement in earnings isn't great enough to justify a higher P/E ratio. Unless these conditions improve, they will continue to form a barrier for the share price around these levels.

Plus, you should also learn about these 2 warning signs we've spotted with Ningbo Boway Alloy Material (including 1 which makes us a bit uncomfortable).

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.