Those holding Strait Innovation Internet Co., Ltd. (SZSE:300300) shares would be relieved that the share price has rebounded 32% in the last thirty days, but it needs to keep going to repair the recent damage it has caused to investor portfolios. Not all shareholders will be feeling jubilant, since the share price is still down a very disappointing 38% in the last twelve months.

Following the firm bounce in price, when almost half of the companies in China's IT industry have price-to-sales ratios (or "P/S") below 3.7x, you may consider Strait Innovation Internet as a stock not worth researching with its 15.4x 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.

How Strait Innovation Internet Has Been Performing

For example, consider that Strait Innovation Internet's financial performance has been poor lately as its revenue has been in decline. One possibility is that the P/S is high because investors think the company will still do enough to outperform the broader industry in the near future. However, if this isn't the case, investors might get caught out paying too much for the stock.

Do Revenue Forecasts Match The High P/S Ratio?

There's an inherent assumption that a company should far outperform the industry for P/S ratios like Strait Innovation Internet's to be considered reasonable.

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%. This means it has also seen a slide in revenue over the longer-term as revenue is down 51% in total over the last three years. 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 41% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

With this information, we find it concerning that Strait Innovation Internet is trading at a P/S higher than the industry. 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.

What We Can Learn From Strait Innovation Internet's P/S?

Shares in Strait Innovation Internet have seen a strong upwards swing lately, which has really helped boost its P/S figure. 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 Strait Innovation Internet 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. Unless the recent medium-term conditions improve markedly, investors will have a hard time accepting the share price as fair value.

It's always necessary to consider the ever-present spectre of investment risk. We've identified 2 warning signs with Strait Innovation Internet (at least 1 which is significant), and understanding these should be part of your investment process.

If these risks are making you reconsider your opinion on Strait Innovation Internet, 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.