It's not a stretch to say that Darco Water Technologies Limited's (SGX:BLR) price-to-sales (or "P/S") ratio of 0.1x right now seems quite "middle-of-the-road" for companies in the Machinery industry in Singapore, where the median P/S ratio is around 0.6x. However, investors might be overlooking a clear opportunity or potential setback if there is no rational basis for the P/S.

We've discovered 2 warning signs about Darco Water Technologies. View them for free.

Check out our latest analysis for Darco Water Technologies

What Does Darco Water Technologies' P/S Mean For Shareholders?

For example, consider that Darco Water Technologies' financial performance has been poor lately as its revenue has been in decline. Perhaps investors believe the recent revenue performance is enough to keep in line with the industry, which is keeping the P/S from dropping off. If not, then existing shareholders may be a little nervous about the viability of the share price.

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 Darco Water Technologies' earnings, revenue and cash flow.

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

Darco Water Technologies' 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 16%. That put a dampener on the good run it was having over the longer-term as its three-year revenue growth is still a noteworthy 8.4% in total. Although it's been a bumpy ride, it's still fair to say the revenue growth recently has been mostly respectable for the company.

Comparing that to the industry, which is predicted to deliver 11% growth in the next 12 months, the company's momentum is weaker, based on recent medium-term annualised revenue results.

In light of this, it's curious that Darco Water Technologies' P/S sits in line with the majority of other companies. It seems most investors are ignoring the fairly limited recent growth rates and are willing to pay up for exposure to the stock. Maintaining these prices will be difficult to achieve as a continuation of recent revenue trends is likely to weigh down the shares eventually.

The Final Word

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've established that Darco Water Technologies' average P/S is a bit surprising since its recent three-year growth is lower than the wider industry forecast. When we see weak revenue with slower than industry growth, we suspect the share price is at risk of declining, bringing the P/S back in line with expectations. If recent medium-term revenue trends continue, the probability of a share price decline will become quite substantial, placing shareholders at risk.

There are also other vital risk factors to consider before investing and we've discovered 2 warning signs for Darco Water Technologies that you should be aware of.

If strong companies turning a profit tickle your fancy, then you'll want to check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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.