Hailun Piano Co.,Ltd. (SZSE:300329) shareholders that were waiting for something to happen have been dealt a blow with a 26% share price drop in the last month. The drop over the last 30 days has capped off a tough year for shareholders, with the share price down 32% in that time.

Even after such a large drop in price, when almost half of the companies in China's Leisure industry have price-to-sales ratios (or "P/S") below 3.4x, you may still consider Hailun PianoLtd as a stock probably not worth researching with its 4.5x 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 as high as it is.

View our latest analysis for Hailun PianoLtd

What Does Hailun PianoLtd's P/S Mean For Shareholders?

For example, consider that Hailun PianoLtd's financial performance has been poor lately as its revenue has been in decline. 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.

How Is Hailun PianoLtd's Revenue Growth Trending?

Hailun PianoLtd's P/S ratio would be typical for a company that's expected to deliver solid growth, and importantly, perform 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 27%. The last three years don't look nice either as the company has shrunk revenue by 34% 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 23% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

In light of this, it's alarming that Hailun PianoLtd'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 Key Takeaway

Hailun PianoLtd's P/S remain high even after its stock plunged. 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.

We've established that Hailun PianoLtd currently trades on a much higher than expected P/S since its recent revenues have been in decline over the medium-term. 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. If recent medium-term revenue trends continue, it will place shareholders' investments at significant risk and potential investors in danger of paying an excessive premium.

It is also worth noting that we have found 2 warning signs for Hailun PianoLtd (1 is potentially serious!) that you need to take into consideration.

If these risks are making you reconsider your opinion on Hailun PianoLtd, 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.