Shengyi Electronics Co., Ltd. (SHSE:688183) shares have continued their recent momentum with a 60% gain in the last month alone. Looking back a bit further, it's encouraging to see the stock is up 39% in the last year.

Although its price has surged higher, it's still not a stretch to say that Shengyi Electronics' price-to-sales (or "P/S") ratio of 3.7x right now seems quite "middle-of-the-road" compared to the Electronic industry in China, seeing as it matches the P/S ratio of the wider industry. Although, it's not wise to simply ignore the P/S without explanation as investors may be disregarding a distinct opportunity or a costly mistake.

How Has Shengyi Electronics Performed Recently?

For example, consider that Shengyi Electronics' financial performance has been pretty ordinary lately as revenue growth is non-existent. One possibility is that the P/S is moderate because investors think this benign revenue growth rate might not be enough to outperform the broader industry in the near future. Those who are bullish on Shengyi Electronics will be hoping that this isn't the case, so that they can pick up the stock at a lower valuation.

Want the full picture on earnings, revenue and cash flow for the company? Then our free report on Shengyi Electronics will help you shine a light on its historical performance.

How Is Shengyi Electronics' Revenue Growth Trending?

In order to justify its P/S ratio, Shengyi Electronics would need to produce growth that's similar to the industry.

Retrospectively, the last year delivered virtually the same number to the company's top line as the year before. Whilst it's an improvement, it wasn't enough to get the company out of the hole it was in, with revenue down 6.8% overall from three years ago. Therefore, it's fair to say the revenue growth recently has been undesirable for the company.

Weighing that medium-term revenue trajectory against the broader industry's one-year forecast for expansion of 26% shows it's an unpleasant look.

With this information, we find it concerning that Shengyi Electronics is trading at a fairly similar P/S compared to 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. Only the boldest would assume these prices are sustainable as a continuation of recent revenue trends is likely to weigh on the share price eventually.

What We Can Learn From Shengyi Electronics' P/S?

Shengyi Electronics appears to be back in favour with a solid price jump bringing its P/S back in line with other companies in the industry It's argued the price-to-sales ratio is an inferior measure of value within certain industries, but it can be a powerful business sentiment indicator.

Our look at Shengyi Electronics revealed its shrinking revenues over the medium-term haven't impacted the P/S as much as we anticipated, given the industry is set to grow. When we see revenue heading backwards in the context of growing industry forecasts, it'd make sense to expect a possible share price decline on the horizon, sending the moderate P/S lower. 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.

You should always think about risks. Case in point, we've spotted 4 warning signs for Shengyi Electronics you should be aware of, and 2 of them shouldn't be ignored.

If strong companies turning a profit tickle your fancy, then you'll want to check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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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.