Despite an already strong run, Shanghai Yimin Commercial Group Co., Ltd. (SHSE:600824) shares have been powering on, with a gain of 46% in the last thirty days. The last 30 days bring the annual gain to a very sharp 30%.

Following the firm bounce in price, when almost half of the companies in China's Multiline Retail industry have price-to-sales ratios (or "P/S") below 2.4x, you may consider Shanghai Yimin Commercial Group as a stock not worth researching with its 6.2x P/S ratio. 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.

How Shanghai Yimin Commercial Group Has Been Performing

As an illustration, revenue has deteriorated at Shanghai Yimin Commercial Group over the last year, which is not ideal at all. 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. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

Do Revenue Forecasts Match The High P/S Ratio?

Shanghai Yimin Commercial Group'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 17%. This means it has also seen a slide in revenue over the longer-term as revenue is down 14% in total over the last three years. Accordingly, shareholders would have felt downbeat about the medium-term rates of revenue growth.

Comparing that to the industry, which is predicted to deliver 13% growth in the next 12 months, the company's downward momentum based on recent medium-term revenue results is a sobering picture.

With this in mind, we find it worrying that Shanghai Yimin Commercial Group's P/S exceeds that of its industry peers. It seems most investors are ignoring the recent poor growth rate and are hoping for a turnaround in the company's business prospects. There's a very 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.

What Does Shanghai Yimin Commercial Group's P/S Mean For Investors?

Shanghai Yimin Commercial Group's P/S has grown nicely over the last month thanks to a handy boost in the share price. It's argued the price-to-sales ratio is an inferior measure of value within certain industries, but it can be a powerful business sentiment indicator.

We've established that Shanghai Yimin Commercial Group currently trades on a much higher than expected P/S since its recent revenues have been in decline over the medium-term. When we see revenue heading backwards and underperforming the industry forecasts, we feel the possibility of the share price declining is very real, bringing the P/S back into the realm of reasonability. Unless the the circumstances surrounding the recent medium-term improve, it wouldn't be wrong to expect a a difficult period ahead for the company's shareholders.

You need to take note of risks, for example - Shanghai Yimin Commercial Group has 2 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.

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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.