Those holding Wan Kei Group Holdings Limited (HKG:1718) shares would be relieved that the share price has rebounded 45% in the last thirty days, but it needs to keep going to repair the recent damage it has caused to investor portfolios. Still, the 30-day jump doesn't change the fact that longer term shareholders have seen their stock decimated by the 58% share price drop in the last twelve months.

Although its price has surged higher, you could still be forgiven for feeling indifferent about Wan Kei Group Holdings' P/S ratio of 0.2x, since the median price-to-sales (or "P/S") ratio for the Construction industry in Hong Kong is also close to 0.3x. 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.

Check out our latest analysis for Wan Kei Group Holdings

How Has Wan Kei Group Holdings Performed Recently?

For example, consider that Wan Kei Group Holdings' financial performance has been poor lately as its revenue has been in decline. 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 you like the company, you'd at least be hoping this is the case so that you could potentially pick up some stock while it's not quite in favour.

We don't have analyst forecasts, but you can see how recent trends are setting up the company for the future by checking out our free report on Wan Kei Group Holdings' earnings, revenue and cash flow.

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

The only time you'd be comfortable seeing a P/S like Wan Kei Group Holdings' is when the company's growth is tracking the industry closely.

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 8.5%. As a result, revenue from three years ago have also fallen 1.7% 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 10% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

In light of this, it's somewhat alarming that Wan Kei Group Holdings' 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. Only the boldest would assume these prices are sustainable as a continuation of recent revenue trends is likely to weigh on the share price eventually.

The Bottom Line On Wan Kei Group Holdings' P/S

Wan Kei Group Holdings appears to be back in favour with a solid price jump bringing its P/S back in line with other companies in the industry Generally, our preference is to limit the use of the price-to-sales ratio to establishing what the market thinks about the overall health of a company.

We find it unexpected that Wan Kei Group Holdings trades at a P/S ratio that is comparable to the rest of the industry, despite experiencing declining revenues during the medium-term, while the industry as a whole is expected to grow. When we see revenue heading backwards in the context of growing industry forecasts, it'd make sense to expect a possible share price decline on the horizon, sending the moderate P/S lower. 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 - Wan Kei Group Holdings has 3 warning signs (and 1 which is significant) we think you should know about.

If you're unsure about the strength of Wan Kei Group Holdings' business, why not explore our interactive list of stocks with solid business fundamentals for some other companies you may have missed.

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.