The China Water Industry Group Limited (HKG:1129) share price has done very well over the last month, posting an excellent gain of 31%. While recent buyers may be laughing, long-term holders might not be as pleased since the recent gain only brings the stock back to where it started a year ago.

Although its price has surged higher, it's still not a stretch to say that China Water Industry Group's price-to-sales (or "P/S") ratio of 0.4x right now seems quite "middle-of-the-road" compared to the Water Utilities industry in Hong Kong, where the median P/S ratio is around 0.5x. Although, it's not wise to simply ignore the P/S without explanation as investors may be disregarding a distinct opportunity or a costly mistake.

How Has China Water Industry Group Performed Recently?

For instance, China Water Industry Group's receding revenue in recent times would have to be some food for thought. It might be that many expect the company to put the disappointing revenue performance behind them over the coming period, which has kept the P/S from falling. If not, then existing shareholders may be a little nervous about the viability of the share price.

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

China Water Industry Group's P/S ratio would be typical for a company that's only expected to deliver moderate growth, and importantly, perform in line with the industry.

In reviewing the last year of financials, we were disheartened to see the company's revenues fell to the tune of 8.1%. As a result, revenue from three years ago have also fallen 15% overall. Accordingly, shareholders would have felt downbeat about the medium-term rates of revenue growth.

Weighing that medium-term revenue trajectory against the broader industry's one-year forecast for expansion of 13% shows it's an unpleasant look.

In light of this, it's somewhat alarming that China Water Industry Group's P/S sits in line with the majority of other companies. Apparently many investors in the company are way less bearish than recent times would indicate and aren't willing to let go of their stock right now. There's a good chance existing shareholders are setting themselves up for future disappointment if the P/S falls to levels more in line with the recent negative growth rates.

The Key Takeaway

China Water Industry Group's stock has a lot of momentum behind it lately, which has brought its P/S level with the rest of the industry. Typically, we'd caution against reading too much into price-to-sales ratios when settling on investment decisions, though it can reveal plenty about what other market participants think about the company.

Our look at China Water Industry Group revealed its shrinking revenues over the medium-term haven't impacted the P/S as much as we anticipated, given the industry is set to grow. Even though it matches the industry, we're uncomfortable with the current P/S ratio, as this dismal revenue performance is unlikely to support a more positive sentiment for long. If recent medium-term revenue trends continue, it will place shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

You need to take note of risks, for example - China Water Industry Group has 3 warning signs (and 1 which is a bit unpleasant) we think 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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.
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.