Xuchang Yuandong Drive Shaft Co.Ltd (SZSE:002406) shareholders that were waiting for something to happen have been dealt a blow with a 25% share price drop in the last month. Longer-term shareholders would now have taken a real hit with the stock declining 9.0% in the last year.

Although its price has dipped substantially, Xuchang Yuandong Drive ShaftLtd's price-to-earnings (or "P/E") ratio of 43.3x might still make it look like a strong sell right now compared to the market in China, where around half of the companies have P/E ratios below 26x and even P/E's below 16x 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 lofty.

For example, consider that Xuchang Yuandong Drive ShaftLtd's financial performance has been pretty ordinary lately as earnings growth is non-existent. It might be that many are expecting an improvement to the uninspiring earnings performance over the coming period, which has kept the P/E from collapsing. If not, then existing shareholders may be a little nervous about the viability of the share price.

How Is Xuchang Yuandong Drive ShaftLtd's Growth Trending?

There's an inherent assumption that a company should far outperform the market for P/E ratios like Xuchang Yuandong Drive ShaftLtd's to be considered reasonable.

Taking a look back first, we see that there was hardly any earnings per share growth to speak of for the company over the past year. Whilst it's an improvement, it wasn't enough to get the company out of the hole it was in, with earnings down 81% overall from three years ago. So unfortunately, we have to acknowledge that the company has not done a great job of growing earnings over that time.

In contrast to the company, the rest of the market is expected to grow by 42% over the next year, which really puts the company's recent medium-term earnings decline into perspective.

With this information, we find it concerning that Xuchang Yuandong Drive ShaftLtd is trading at a P/E higher than the market. Apparently many investors in the company are way more bullish than recent times would indicate and aren't willing to let go of their stock at any price. Only the boldest would assume these prices are sustainable as a continuation of recent earnings trends is likely to weigh heavily on the share price eventually.

The Final Word

Even after such a strong price drop, Xuchang Yuandong Drive ShaftLtd's P/E still exceeds the rest of the market significantly. 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.

Our examination of Xuchang Yuandong Drive ShaftLtd revealed its shrinking earnings over the medium-term aren't impacting its high P/E anywhere near as much as we would have predicted, given the market is set to grow. Right now we are increasingly uncomfortable with the high P/E as this earnings performance is highly unlikely to support such positive sentiment for long. Unless the recent medium-term conditions improve markedly, it's very challenging to accept these prices as being reasonable.

Before you settle on your opinion, we've discovered 5 warning signs for Xuchang Yuandong Drive ShaftLtd (1 can't be ignored!) that you should be aware of.

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.