The Shanghai Lonyer Data Co., Ltd. (SHSE:603003) share price has softened a substantial 25% over the previous 30 days, handing back much of the gains the stock has made lately. For any long-term shareholders, the last month ends a year to forget by locking in a 55% share price decline.

In spite of the heavy fall in price, it's still not a stretch to say that Shanghai Lonyer Data's price-to-sales (or "P/S") ratio of 0.9x right now seems quite "middle-of-the-road" compared to the Oil and Gas industry in China, where the median P/S ratio is around 1.3x. While this might not raise any eyebrows, if the P/S ratio is not justified investors could be missing out on a potential opportunity or ignoring looming disappointment.

What Does Shanghai Lonyer Data's P/S Mean For Shareholders?

For example, consider that Shanghai Lonyer Data's 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 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.

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

There's an inherent assumption that a company should be matching the industry for P/S ratios like Shanghai Lonyer Data's to be considered reasonable.

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 54%. The last three years don't look nice either as the company has shrunk revenue by 70% in aggregate. 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 6.3% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

With this in mind, we find it worrying that Shanghai Lonyer Data'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. 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.

What Does Shanghai Lonyer Data's P/S Mean For Investors?

Shanghai Lonyer Data's plummeting stock price has brought its P/S back to a similar region as the rest of the industry. Typically, we'd caution against reading too much into price-to-sales ratios when settling on investment decisions, though it can reveal plenty about what other market participants think about the company.

The fact that Shanghai Lonyer Data currently trades at a P/S on par with the rest of the industry is surprising to us since its recent revenues have been in decline over the medium-term, all while the industry is set to grow. Even though it matches the industry, we're uncomfortable with the current P/S ratio, as this dismal revenue performance is unlikely to support a more positive sentiment for long. If recent medium-term revenue trends continue, it will place shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

Plus, you should also learn about this 1 warning sign we've spotted with Shanghai Lonyer Data.

If you're unsure about the strength of Shanghai Lonyer Data's business, why not explore our interactive list of stocks with solid business fundamentals for some other companies you may have missed.

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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.