Unfortunately for some shareholders, the Dagang Holding Group Co.,Ltd. (SZSE:300103) share price has dived 26% in the last thirty days, prolonging recent pain. Instead of being rewarded, shareholders who have already held through the last twelve months are now sitting on a 48% share price drop.

Even after such a large drop in price, given close to half the companies operating in China's Machinery industry have price-to-sales ratios (or "P/S") below 2.6x, you may still consider Dagang Holding GroupLtd as a stock to potentially avoid with its 3.7x P/S ratio. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the elevated P/S.

What Does Dagang Holding GroupLtd's Recent Performance Look Like?

As an illustration, revenue has deteriorated at Dagang Holding GroupLtd over the last year, which is not ideal at all. It might be that many expect the company to still outplay most other companies over the coming period, which has kept the P/S from collapsing. If not, then existing shareholders may be quite nervous about the viability of the share price.

Do Revenue Forecasts Match The High P/S Ratio?

There's an inherent assumption that a company should outperform the industry for P/S ratios like Dagang Holding GroupLtd's to be considered reasonable.

Retrospectively, the last year delivered a frustrating 55% decrease to the company's top line. This means it has also seen a slide in revenue over the longer-term as revenue is down 79% in total over the last three years. Therefore, it's fair to say the revenue growth recently has been undesirable for the company.

Comparing that to the industry, which is predicted to deliver 24% growth in the next 12 months, the company's downward momentum based on recent medium-term revenue results is a sobering picture.

With this information, we find it concerning that Dagang Holding GroupLtd 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.

The Bottom Line On Dagang Holding GroupLtd's P/S

Despite the recent share price weakness, Dagang Holding GroupLtd's P/S remains higher than most other companies in the industry. We'd say the price-to-sales ratio's power isn't primarily as a valuation instrument but rather to gauge current investor sentiment and future expectations.

We've established that Dagang Holding GroupLtd 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.

Plus, you should also learn about these 2 warning signs we've spotted with Dagang Holding GroupLtd.

If companies with solid past earnings growth is up your alley, you may wish to see this free collection of other companies with strong earnings growth and low P/E ratios.

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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.