Shenzhen United Winners Laser Co., Ltd. (SHSE:688518) shareholders would be excited to see that the share price has had a great month, posting a 44% gain and recovering from prior weakness. Not all shareholders will be feeling jubilant, since the share price is still down a very disappointing 25% in the last twelve months.

After such a large jump in price, Shenzhen United Winners Laser may be sending bearish signals at the moment with its price-to-earnings (or "P/E") ratio of 42.5x, since almost half of all companies in China have P/E ratios under 33x and even P/E's lower than 20x are not unusual. However, the P/E might be high for a reason and it requires further investigation to determine if it's justified.

Recent times haven't been advantageous for Shenzhen United Winners Laser as its earnings have been falling quicker than most other companies. One possibility is that the P/E is high because investors think the company will turn things around completely and accelerate past most others in the market. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

Does Growth Match The High P/E?

Shenzhen United Winners Laser's P/E ratio would be typical for a company that's expected to deliver solid growth, and importantly, perform better than the market.

If we review the last year of earnings, dishearteningly the company's profits fell to the tune of 68%. Still, the latest three year period has seen an excellent 52% overall rise in EPS, in spite of its unsatisfying short-term performance. Accordingly, while they would have preferred to keep the run going, shareholders would probably welcome the medium-term rates of earnings growth.

Turning to the outlook, the next three years should generate growth of 60% per year as estimated by the nine analysts watching the company. Meanwhile, the rest of the market is forecast to only expand by 19% per year, which is noticeably less attractive.

With this information, we can see why Shenzhen United Winners Laser is trading at such a high P/E compared to the market. It seems most investors are expecting this strong future growth and are willing to pay more for the stock.

What We Can Learn From Shenzhen United Winners Laser's P/E?

The large bounce in Shenzhen United Winners Laser's shares has lifted the company's P/E to a fairly high level. 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.

We've established that Shenzhen United Winners Laser maintains its high P/E on the strength of its forecast growth being higher than the wider market, as expected. At this stage investors feel the potential for a deterioration in earnings isn't great enough to justify a lower P/E ratio. Unless these conditions change, they will continue to provide strong support to the share price.

Having said that, be aware Shenzhen United Winners Laser is showing 4 warning signs in our investment analysis, and 1 of those is a bit unpleasant.

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.