ShenZhen Consys Science&Technology Co., Ltd. (SHSE:688788) shareholders that were waiting for something to happen have been dealt a blow with a 29% share price drop in the last month. Instead of being rewarded, shareholders who have already held through the last twelve months are now sitting on a 34% share price drop.

Even after such a large drop in price, ShenZhen Consys Science&Technology's price-to-sales (or "P/S") ratio of 13.8x might still make it look like a strong sell right now compared to other companies in the Aerospace & Defense industry in China, where around half of the companies have P/S ratios below 6.8x and even P/S below 3x are quite common. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the highly elevated P/S.

View our latest analysis for ShenZhen Consys Science&Technology

What Does ShenZhen Consys Science&Technology's P/S Mean For Shareholders?

For instance, ShenZhen Consys Science&Technology's receding revenue in recent times would have to be some food for thought. 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. However, if this isn't the case, investors might get caught out paying too much for the stock.

We don't have analyst forecasts, but you can see how recent trends are setting up the company for the future by checking out our free report on ShenZhen Consys Science&Technology's earnings, revenue and cash flow.

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

ShenZhen Consys Science&Technology'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 7.5%. This means it has also seen a slide in revenue over the longer-term as revenue is down 73% 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.

Weighing that medium-term revenue trajectory against the broader industry's one-year forecast for expansion of 48% shows it's an unpleasant look.

In light of this, it's alarming that ShenZhen Consys Science&Technology's P/S sits above the majority of other companies. 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.

The Bottom Line On ShenZhen Consys Science&Technology's P/S

ShenZhen Consys Science&Technology's shares may have suffered, but its P/S remains high. 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 ShenZhen Consys Science&Technology revealed its shrinking revenue over the medium-term isn't resulting in a P/S as low as we expected, given the industry is set to grow. 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. Should recent medium-term revenue trends persist, it would pose a significant risk to existing shareholders' investments and prospective investors will have a hard time accepting the current value of the stock.

Having said that, be aware ShenZhen Consys Science&Technology is showing 1 warning sign in our investment analysis, you should know about.

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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