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When you see that almost half of the companies in the Electrical industry in Hong Kong have price-to-sales ratios (or "P/S") below 0.5x, China Nature Energy Technology Holdings Limited (HKG:1597) looks to be giving off strong sell signals with its 3.7x 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.

See our latest analysis for China Nature Energy Technology Holdings

How China Nature Energy Technology Holdings Has Been Performing

As an illustration, revenue has deteriorated at China Nature Energy Technology Holdings 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. However, if this isn't the case, investors might get caught out paying too much for the stock.

How Is China Nature Energy Technology Holdings' Revenue Growth Trending?

There's an inherent assumption that a company should far outperform the industry for P/S ratios like China Nature Energy Technology Holdings' 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 18%. As a result, revenue from three years ago have also fallen 37% 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 29% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

In light of this, it's alarming that China Nature Energy Technology Holdings' P/S sits above the majority of other companies. 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 Key Takeaway

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.

We've established that China Nature Energy Technology Holdings 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. 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.

There are also other vital risk factors to consider before investing and we've discovered 1 warning sign for China Nature Energy Technology Holdings that you should be aware of.

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.