Ningbo Daye Garden Machinery Co.,Ltd. (SZSE:300879) shareholders are no doubt pleased to see that the share price has bounced 41% in the last month, although it is still struggling to make up recently lost ground. Unfortunately, the gains of the last month did little to right the losses of the last year with the stock still down 35% over that time.

In spite of the firm bounce in price, it's still not a stretch to say that Ningbo Daye Garden MachineryLtd's price-to-sales (or "P/S") ratio of 2x right now seems quite "middle-of-the-road" compared to the Consumer Durables industry in China, seeing as it matches the P/S ratio of the wider industry. 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 Ningbo Daye Garden MachineryLtd Has Been Performing

As an illustration, revenue has deteriorated at Ningbo Daye Garden MachineryLtd over the last year, which is not ideal at all. It might be that many expect the company to put the disappointing revenue performance behind them over the coming period, which has kept the P/S from falling. 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.

Do Revenue Forecasts Match The P/S Ratio?

In order to justify its P/S ratio, Ningbo Daye Garden MachineryLtd would need to produce growth that's similar to 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 45%. The last three years don't look nice either as the company has shrunk revenue by 16% 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 12% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

In light of this, it's somewhat alarming that Ningbo Daye Garden MachineryLtd's P/S sits in line with 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 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.

What Does Ningbo Daye Garden MachineryLtd's P/S Mean For Investors?

Its shares have lifted substantially and now Ningbo Daye Garden MachineryLtd's P/S is back within range of the industry median. 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.

The fact that Ningbo Daye Garden MachineryLtd 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. Unless the the circumstances surrounding the recent medium-term improve, it wouldn't be wrong to expect a a difficult period ahead for the company's shareholders.

Don't forget that there may be other risks. For instance, we've identified 3 warning signs for Ningbo Daye Garden MachineryLtd (2 are significant) you should be aware of.

Of course, profitable companies with a history of great earnings growth are generally safer bets. So you may wish to see this free collection of other companies that have reasonable P/E ratios and have grown earnings strongly.

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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.