To the annoyance of some shareholders, Nanjing Sample Technology Company Limited (HKG:1708) shares are down a considerable 31% in the last month, which continues a horrid run for the company. For any long-term shareholders, the last month ends a year to forget by locking in a 87% share price decline.

In spite of the heavy fall in price, there still wouldn't be many who think Nanjing Sample Technology's price-to-sales (or "P/S") ratio of 0.6x is worth a mention when the median P/S in Hong Kong's Electronic industry is similar at about 0.4x. 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.

How Has Nanjing Sample Technology Performed Recently?

For instance, Nanjing Sample Technology's receding revenue in recent times would have to be some food for thought. 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.

Is There Some Revenue Growth Forecasted For Nanjing Sample Technology?

Nanjing Sample Technology's 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.

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 3.7%. The last three years don't look nice either as the company has shrunk revenue by 48% in aggregate. Accordingly, shareholders would have felt downbeat about the medium-term rates of revenue growth.

Weighing that medium-term revenue trajectory against the broader industry's one-year forecast for expansion of 20% shows it's an unpleasant look.

With this information, we find it concerning that Nanjing Sample Technology is trading at a fairly similar P/S compared to 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 on the share price eventually.

What We Can Learn From Nanjing Sample Technology's P/S?

Following Nanjing Sample Technology's share price tumble, its P/S is just clinging on to the industry median P/S. 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.

Our look at Nanjing Sample Technology revealed its shrinking revenues over the medium-term haven't impacted the P/S as much as we anticipated, given the industry is set to grow. When we see revenue heading backwards in the context of growing industry forecasts, it'd make sense to expect a possible share price decline on the horizon, sending the moderate P/S lower. If recent medium-term revenue trends continue, it will place shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

You need to take note of risks, for example - Nanjing Sample Technology has 4 warning signs (and 1 which is a bit concerning) we think you should know about.

If these risks are making you reconsider your opinion on Nanjing Sample Technology, 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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com