Yuancheng Environment Co., Ltd.'s (SHSE:603388) price-to-sales (or "P/S") ratio of 10.2x may look like a poor investment opportunity when you consider close to half the companies in the Commercial Services industry in China have P/S ratios below 3.3x. Although, it's not wise to just take the P/S at face value as there may be an explanation why it's so lofty.

See our latest analysis for Yuancheng Environment

What Does Yuancheng Environment's Recent Performance Look Like?

For example, consider that Yuancheng Environment's financial performance has been poor lately as its revenue has been in decline. Perhaps the market believes the company can do enough to outperform the rest of the industry in the near future, which is keeping the P/S ratio high. However, if this isn't the case, investors might get caught out paying too much for the stock.

Want the full picture on earnings, revenue and cash flow for the company? Then our free report on Yuancheng Environment will help you shine a light on its historical performance.

What Are Revenue Growth Metrics Telling Us About The High P/S?

Yuancheng Environment's P/S ratio would be typical for a company that's expected to deliver very strong growth, and importantly, perform much better than the industry.

Taking a look back first, the company's revenue growth last year wasn't something to get excited about as it posted a disappointing decline of 42%. As a result, revenue from three years ago have also fallen 62% overall. Accordingly, shareholders would have felt downbeat about the medium-term rates of revenue growth.

In contrast to the company, the rest of the industry is expected to grow by 34% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

With this information, we find it concerning that Yuancheng Environment is trading at a P/S higher than the industry. It seems most investors are ignoring the recent poor growth rate and are hoping for a turnaround in the company's business prospects. Only the boldest would assume these prices are sustainable as a continuation of recent revenue trends is likely to weigh heavily on the share price eventually.

What We Can Learn From Yuancheng Environment's P/S?

While the price-to-sales ratio shouldn't be the defining factor in whether you buy a stock or not, it's quite a capable barometer of revenue expectations.

We've established that Yuancheng Environment currently trades on a much higher than expected P/S since its recent revenues have been in decline over the medium-term. With a revenue decline on investors' minds, the likelihood of a souring sentiment is quite high which could send the P/S back in line with what we'd expect. If recent medium-term revenue trends continue, it will place shareholders' investments at significant risk and potential investors in danger of paying an excessive premium.

And what about other risks? Every company has them, and we've spotted 2 warning signs for Yuancheng Environment you should know about.

Of course, profitable companies with a history of great earnings growth are generally safer bets. So you may wish to see this free collection of other companies that have reasonable P/E ratios and have grown earnings strongly.

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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.