With a price-to-sales (or "P/S") ratio of 8.2x Shanghai Allied Industrial Co., Ltd (SZSE:301419) may be sending very bearish signals at the moment, given that almost half of all the Communications companies in China have P/S ratios under 5.3x and even P/S lower than 2x are not unusual. 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 Shanghai Allied Industrial's P/S Mean For Shareholders?

As an illustration, revenue has deteriorated at Shanghai Allied Industrial 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. If not, then existing shareholders may be quite nervous about the viability of the share price.

Do Revenue Forecasts Match The High P/S Ratio?

Shanghai Allied Industrial's P/S ratio would be typical for a company that's expected to deliver very strong growth, and importantly, perform much better than the industry.

Retrospectively, the last year delivered a frustrating 25% decrease to the company's top line. This means it has also seen a slide in revenue over the longer-term as revenue is down 12% in total over the last three years. So unfortunately, we have to acknowledge that the company has not done a great job of growing revenue over that time.

Comparing that to the industry, which is predicted to deliver 40% growth in the next 12 months, the company's downward momentum based on recent medium-term revenue results is a sobering picture.

With this in mind, we find it worrying that Shanghai Allied Industrial's P/S exceeds that of its industry peers. It seems most investors are ignoring the recent poor growth rate and are hoping for a turnaround in the company's business prospects. 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 Key Takeaway

We'd say the price-to-sales ratio's power isn't primarily as a valuation instrument but rather to gauge current investor sentiment and future expectations.

Our examination of Shanghai Allied Industrial revealed its shrinking revenue over the medium-term isn't resulting in a P/S as low as we expected, given the industry is set to grow. 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. 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.

Before you settle on your opinion, we've discovered 5 warning signs for Shanghai Allied Industrial (2 don't sit too well with us!) that you should be aware of.

If you're unsure about the strength of Shanghai Allied Industrial's business, why not explore our interactive list of stocks with solid business fundamentals for some other companies you may have missed.

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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.