Shenzhen Zesum Technology Co.,Ltd (SZSE:301486) shareholders would be excited to see that the share price has had a great month, posting a 59% gain and recovering from prior weakness. While recent buyers may be laughing, long-term holders might not be as pleased since the recent gain only brings the stock back to where it started a year ago.

Since its price has surged higher, Shenzhen Zesum TechnologyLtd may be sending strong sell signals at present with a price-to-sales (or "P/S") ratio of 12.1x, when you consider almost half of the companies in the Electronic industry in China have P/S ratios under 4.2x and even P/S lower than 2x aren't out of the ordinary. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the highly elevated P/S.

What Does Shenzhen Zesum TechnologyLtd's Recent Performance Look Like?

As an illustration, revenue has deteriorated at Shenzhen Zesum TechnologyLtd over the last year, which is not ideal at all. Perhaps the market believes the company can do enough to outperform the rest of the industry in the near future, which is keeping the P/S ratio high. However, if this isn't the case, investors might get caught out paying too much for the stock.

Is There Enough Revenue Growth Forecasted For Shenzhen Zesum TechnologyLtd?

There's an inherent assumption that a company should far outperform the industry for P/S ratios like Shenzhen Zesum TechnologyLtd'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 11%. Unfortunately, that's brought it right back to where it started three years ago with revenue growth being virtually non-existent overall during that time. Therefore, it's fair to say that revenue growth has been inconsistent recently for the company.

Comparing the recent medium-term revenue trends against the industry's one-year growth forecast of 25% shows it's noticeably less attractive.

With this information, we find it concerning that Shenzhen Zesum TechnologyLtd is trading at a P/S higher than the industry. 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.

What Does Shenzhen Zesum TechnologyLtd's P/S Mean For Investors?

Shenzhen Zesum TechnologyLtd's P/S has grown nicely over the last month thanks to a handy boost in the share price. 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 examination of Shenzhen Zesum TechnologyLtd revealed its poor three-year revenue trends aren't detracting from the P/S as much as we though, given they look worse than current industry expectations. Right now we aren't comfortable with the high P/S as this revenue performance isn't likely to support such positive sentiment for long. Unless there is a significant improvement in the company's medium-term performance, it will be difficult to prevent the P/S ratio from declining to a more reasonable level.

Plus, you should also learn about this 1 warning sign we've spotted with Shenzhen Zesum TechnologyLtd.

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.