Ningbo Zhoushan Port Company Limited's (SHSE:601018) price-to-earnings (or "P/E") ratio of 15.9x 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 38x and even P/E's above 75x 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 example, consider that Ningbo Zhoushan Port's financial performance has been pretty ordinary lately as earnings growth is non-existent. It might be that many expect the uninspiring earnings performance to worsen, 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.

Does Growth Match The Low P/E?

The only time you'd be truly comfortable seeing a P/E as depressed as Ningbo Zhoushan Port's is when the company's growth is on track to lag the market decidedly.

If we review the last year of earnings, the company posted a result that saw barely any deviation from a year ago. The longer-term trend has been no better as the company has no earnings growth to show for over the last three years either. So it seems apparent to us that the company has struggled to grow earnings meaningfully over that time.

Comparing that to the market, which is predicted to deliver 38% 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 understandable that Ningbo Zhoushan Port's P/E sits below the majority of other companies. Apparently many shareholders weren't comfortable holding on to something they believe will continue to trail the bourse.

The Final Word

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.

As we suspected, our examination of Ningbo Zhoushan Port revealed its three-year earnings trends are contributing to its low P/E, given they look worse than current market expectations. At this stage investors feel the potential for an improvement in earnings isn't great enough to justify a higher P/E ratio. If recent medium-term earnings trends continue, it's hard to see the share price rising strongly in the near future under these circumstances.

And what about other risks? Every company has them, and we've spotted 1 warning sign for Ningbo Zhoushan Port you should know about.

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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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.