The Ronglian Group Ltd. (SZSE:002642) share price has fared very poorly over the last month, falling by a substantial 25%. Instead of being rewarded, shareholders who have already held through the last twelve months are now sitting on a 25% share price drop.

After such a large drop in price, Ronglian Group may look like a strong buying opportunity at present with its price-to-sales (or "P/S") ratio of 1.2x, considering almost half of all companies in the IT industry in China have P/S ratios greater than 3.2x and even P/S higher than 7x aren't out of the ordinary. Although, it's not wise to just take the P/S at face value as there may be an explanation why it's so limited.

What Does Ronglian Group's Recent Performance Look Like?

As an illustration, revenue has deteriorated at Ronglian Group over the last year, which is not ideal at all. One possibility is that the P/S is low because investors think the company won't do enough to avoid underperforming the broader industry in the near future. However, if this doesn't eventuate then existing shareholders may be feeling optimistic about the future direction of the share price.

Do Revenue Forecasts Match The Low P/S Ratio?

There's an inherent assumption that a company should far underperform the industry for P/S ratios like Ronglian Group's to be considered reasonable.

In reviewing the last year of financials, we were disheartened to see the company's revenues fell to the tune of 22%. This means it has also seen a slide in revenue over the longer-term as revenue is down 2.4% in total over the last three years. So unfortunately, we have to acknowledge that the company has not done a great job of growing revenue over that time.

In contrast to the company, the rest of the industry is expected to grow by 34% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

With this in mind, we understand why Ronglian Group's P/S is lower than most of its industry peers. Nonetheless, there's no guarantee the P/S has reached a floor yet with revenue going in reverse. Even just maintaining these prices could be difficult to achieve as recent revenue trends are already weighing down the shares.

What Does Ronglian Group's P/S Mean For Investors?

Ronglian Group's P/S looks about as weak as its stock price lately. Using the price-to-sales ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

Our examination of Ronglian Group confirms that the company's shrinking revenue over the past medium-term is a key factor in its low price-to-sales ratio, given the industry is projected to grow. At this stage investors feel the potential for an improvement in revenue isn't great enough to justify a higher P/S ratio. Unless the recent medium-term conditions improve, they will continue to form a barrier for the share price around these levels.

It's always necessary to consider the ever-present spectre of investment risk. We've identified 1 warning sign with Ronglian Group, and understanding should be part of your investment process.

If these risks are making you reconsider your opinion on Ronglian Group, explore our interactive list of high quality stocks to get an idea of what else is out there.

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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.