Routon Electronic Co., Ltd. (SHSE:600355) shareholders won't be pleased to see that the share price has had a very rough month, dropping 35% and undoing the prior period's positive performance. To make matters worse, the recent drop has wiped out a year's worth of gains with the share price now back where it started a year ago.

Although its price has dipped substantially, you could still be forgiven for thinking Routon Electronic is a stock to steer clear of with a price-to-sales ratios (or "P/S") of 11x, considering almost half the companies in China's Tech industry have P/S ratios below 2.9x. However, the P/S might be quite high for a reason and it requires further investigation to determine if it's justified.

What Does Routon Electronic's Recent Performance Look Like?

As an illustration, revenue has deteriorated at Routon Electronic over the last year, which is not ideal at all. 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. If not, then existing shareholders may be quite nervous about the viability of the share price.

How Is Routon Electronic's Revenue Growth Trending?

In order to justify its P/S ratio, Routon Electronic would need to produce outstanding growth that's well in excess of the industry.

In reviewing the last year of financials, we were disheartened to see the company's revenues fell to the tune of 21%. The last three years don't look nice either as the company has shrunk revenue by 28% in aggregate. Accordingly, shareholders would have felt downbeat about the medium-term rates of revenue growth.

Weighing that medium-term revenue trajectory against the broader industry's one-year forecast for expansion of 24% shows it's an unpleasant look.

With this information, we find it concerning that Routon Electronic 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.

The Final Word

Routon Electronic's shares may have suffered, but its P/S remains high. Generally, our preference is to limit the use of the price-to-sales ratio to establishing what the market thinks about the overall health of a company.

We've established that Routon Electronic 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.

Don't forget that there may be other risks. For instance, we've identified 2 warning signs for Routon Electronic that you should be aware of.

If these risks are making you reconsider your opinion on Routon Electronic, explore our interactive list of high quality stocks to get an idea of what else is out there.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.
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.