Shanghai Huaming Intelligent Terminal Equipment Co., Ltd. (SZSE:300462) shares have retraced a considerable 26% in the last month, reversing a fair amount of their solid recent performance. The drop over the last 30 days has capped off a tough year for shareholders, with the share price down 20% in that time.

In spite of the heavy fall in price, you could still be forgiven for feeling indifferent about Shanghai Huaming Intelligent Terminal Equipment's P/S ratio of 2.7x, since the median price-to-sales (or "P/S") ratio for the Machinery industry in China is also close to 2.2x. However, investors might be overlooking a clear opportunity or potential setback if there is no rational basis for the P/S.

How Shanghai Huaming Intelligent Terminal Equipment Has Been Performing

For example, consider that Shanghai Huaming Intelligent Terminal Equipment's financial performance has been poor lately as its revenue has been in decline. One possibility is that the P/S is moderate because investors think the company might still do enough to be in line with the broader industry in the near future. If you like the company, you'd at least be hoping this is the case so that you could potentially pick up some stock while it's not quite in favour.

Do Revenue Forecasts Match The P/S Ratio?

There's an inherent assumption that a company should be matching the industry for P/S ratios like Shanghai Huaming Intelligent Terminal Equipment'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 19%. As a result, revenue from three years ago have also fallen 48% overall. 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 22% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

In light of this, it's somewhat alarming that Shanghai Huaming Intelligent Terminal Equipment's P/S sits in line with the majority of other companies. Apparently many investors in the company are way less bearish than recent times would indicate and aren't willing to let go of their stock right now. There's a 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 Shanghai Huaming Intelligent Terminal Equipment's P/S?

Shanghai Huaming Intelligent Terminal Equipment's plummeting stock price has brought its P/S back to a similar region as the rest of the industry. Typically, we'd caution against reading too much into price-to-sales ratios when settling on investment decisions, though it can reveal plenty about what other market participants think about the company.

Our look at Shanghai Huaming Intelligent Terminal Equipment 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. Even though it matches the industry, we're uncomfortable with the current P/S ratio, as this dismal revenue performance is unlikely to support a more positive sentiment for long. If recent medium-term revenue trends continue, it will place shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

It's always necessary to consider the ever-present spectre of investment risk. We've identified 2 warning signs with Shanghai Huaming Intelligent Terminal Equipment, and understanding these should be part of your investment process.

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.