Hangzhou Weiguang Electronic Co.,Ltd. (SZSE:002801) shareholders would be excited to see that the share price has had a great month, posting a 29% gain and recovering from prior weakness. Not all shareholders will be feeling jubilant, since the share price is still down a very disappointing 17% in the last twelve months.

Although its price has surged higher, Hangzhou Weiguang ElectronicLtd's price-to-earnings (or "P/E") ratio of 17.9x 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 30x and even P/E's above 55x 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 example, consider that Hangzhou Weiguang ElectronicLtd's financial performance has been poor lately as its earnings have been in decline. 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. However, if this doesn't eventuate then existing shareholders may be feeling optimistic about the future direction of the share price.

Is There Any Growth For Hangzhou Weiguang ElectronicLtd?

In order to justify its P/E ratio, Hangzhou Weiguang ElectronicLtd would need to produce sluggish growth that's trailing the market.

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 17%. Still, the latest three year period has seen an excellent 53% overall rise in EPS, in spite of its unsatisfying short-term performance. Although it's been a bumpy ride, it's still fair to say the earnings growth recently has been more than adequate for the company.

This is in contrast to the rest of the market, which is expected to grow by 41% over the next year, materially higher than the company's recent medium-term annualised growth rates.

With this information, we can see why Hangzhou Weiguang ElectronicLtd is trading at a P/E lower than the market. Apparently many shareholders weren't comfortable holding on to something they believe will continue to trail the bourse.

The Key Takeaway

The latest share price surge wasn't enough to lift Hangzhou Weiguang ElectronicLtd's P/E close to the market median. 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 Hangzhou Weiguang ElectronicLtd maintains its low P/E on the weakness of its recent three-year growth being lower than the wider market forecast, as expected. At this stage investors feel the potential for an improvement in earnings isn't great enough to justify a higher P/E ratio. Unless the recent medium-term conditions improve, they will continue to form a barrier for the share price around these levels.

It is also worth noting that we have found 1 warning sign for Hangzhou Weiguang ElectronicLtd that you need to take into consideration.

It's important to make sure you look for a great company, not just the first idea you come across. So take a peek at this free list of interesting companies with strong recent earnings growth (and 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.