Those holding Zhubo Design Co., Ltd (SZSE:300564) shares would be relieved that the share price has rebounded 30% in the last thirty days, but it needs to keep going to repair the recent damage it has caused to investor portfolios. Unfortunately, the gains of the last month did little to right the losses of the last year with the stock still down 33% over that time.

In spite of the firm bounce in price, Zhubo Design's price-to-earnings (or "P/E") ratio of 14.5x might still 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 32x and even P/E's above 58x are quite common. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's so limited.

For instance, Zhubo Design'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. 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.

How Is Zhubo Design's Growth Trending?

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

Taking a look back first, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 39%. This means it has also seen a slide in earnings over the longer-term as EPS is down 17% in total over the last three years. Therefore, it's fair to say the earnings growth recently has been undesirable for the company.

Comparing that to the market, which is predicted to deliver 41% growth in the next 12 months, the company's downward momentum based on recent medium-term earnings results is a sobering picture.

In light of this, it's understandable that Zhubo Design's P/E would sit below the majority of other companies. 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 Zhubo Design's P/E?

Shares in Zhubo Design are going to need a lot more upward momentum to get the company's P/E out of its slump. Generally, our preference is to limit the use of the price-to-earnings ratio to establishing what the market thinks about the overall health of a company.

As we suspected, our examination of Zhubo Design revealed its shrinking earnings over the medium-term are contributing to its low P/E, given the market is set to grow. 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 moving strongly in either direction in the near future under these circumstances.

You should always think about risks. Case in point, we've spotted 3 warning signs for Zhubo Design you should be aware of, and 2 of them are a bit concerning.

You might be able to find a better investment than Zhubo Design. If you want a selection of possible candidates, check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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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.