The Zhejiang NetSun Co., Ltd. (SZSE:002095) share price has softened a substantial 26% over the previous 30 days, handing back much of the gains the stock has made lately. The recent drop has obliterated the annual return, with the share price now down 8.9% over that longer period.

Even after such a large drop in price, when almost half of the companies in China's Trade Distributors industry have price-to-sales ratios (or "P/S") below 0.8x, you may still consider Zhejiang NetSun as a stock not worth researching with its 8.5x 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.

What Does Zhejiang NetSun's P/S Mean For Shareholders?

Zhejiang NetSun certainly has been doing a great job lately as it's been growing its revenue at a really rapid pace. Perhaps the market is expecting future revenue performance to outperform the wider market, which has seemingly got people interested in the stock. However, if this isn't the case, investors might get caught out paying too much for the stock.

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

The only time you'd be truly comfortable seeing a P/S as steep as Zhejiang NetSun's is when the company's growth is on track to outshine the industry decidedly.

Taking a look back first, we see that the company grew revenue by an impressive 31% last year. Still, revenue has fallen 15% in total from three years ago, which is quite disappointing. Therefore, it's fair to say the revenue growth recently has been undesirable for the company.

Weighing that medium-term revenue trajectory against the broader industry's one-year forecast for expansion of 13% shows it's an unpleasant look.

With this in mind, we find it worrying that Zhejiang NetSun's P/S exceeds that of its industry peers. Apparently many investors in the company are way more bullish than recent times would indicate and aren't willing to let go of their stock at any price. Only the boldest would assume these prices are sustainable as a continuation of recent revenue trends is likely to weigh heavily on the share price eventually.

The Bottom Line On Zhejiang NetSun's P/S

Zhejiang NetSun's shares may have suffered, but its P/S remains high. Generally, our preference is to limit the use of the price-to-sales ratio to establishing what the market thinks about the overall health of a company.

We've established that Zhejiang NetSun currently trades on a much higher than expected P/S since its recent revenues have been in decline over the medium-term. With a revenue decline on investors' minds, the likelihood of a souring sentiment is quite high which could send the P/S back in line with what we'd expect. Unless the recent medium-term conditions improve markedly, investors will have a hard time accepting the share price as fair value.

It is also worth noting that we have found 2 warning signs for Zhejiang NetSun (1 doesn't sit too well with us!) that you need to take into consideration.

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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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.