China Smarter Energy Group Holdings Limited (HKG:1004) shares have had a horrible month, losing 29% after a relatively good period beforehand. Longer-term shareholders will rue the drop in the share price, since it's now virtually flat for the year after a promising few quarters.

In spite of the heavy fall in price, it's still not a stretch to say that China Smarter Energy Group Holdings' price-to-sales (or "P/S") ratio of 0.8x right now seems quite "middle-of-the-road" compared to the Renewable Energy industry in Hong Kong, where the median P/S ratio is around 0.6x. 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.

See our latest analysis for China Smarter Energy Group Holdings

What Does China Smarter Energy Group Holdings' P/S Mean For Shareholders?

For example, consider that China Smarter Energy Group Holdings' financial performance has been poor lately as its revenue has been in decline. It might be that many expect the company to put the disappointing revenue performance behind them over the coming period, which has kept the P/S from falling. If not, then existing shareholders may be a little nervous about the viability of the share price.

Is There Some Revenue Growth Forecasted For China Smarter Energy Group Holdings?

The only time you'd be comfortable seeing a P/S like China Smarter Energy Group Holdings' is when the company's growth is tracking the industry closely.

In reviewing the last year of financials, we were disheartened to see the company's revenues fell to the tune of 8.8%. The last three years don't look nice either as the company has shrunk revenue by 85% in aggregate. Therefore, it's fair to say the revenue growth recently has been undesirable for the company.

Comparing that to the industry, which is predicted to deliver 5.3% growth in the next 12 months, the company's downward momentum based on recent medium-term revenue results is a sobering picture.

In light of this, it's somewhat alarming that China Smarter Energy Group Holdings' P/S sits in line with the majority of other companies. It seems most investors are ignoring the recent poor growth rate and are hoping for a turnaround in the company's business prospects. 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 China Smarter Energy Group Holdings' P/S?

China Smarter Energy Group Holdings' plummeting stock price has brought its P/S back to a similar region as the rest of the industry. 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.

The fact that China Smarter Energy Group Holdings currently trades at a P/S on par with the rest of the industry is surprising to us since its recent revenues have been in decline over the medium-term, all while 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.

There are also other vital risk factors to consider and we've discovered 3 warning signs for China Smarter Energy Group Holdings (2 don't sit too well with us!) that you should be aware of before investing here.

Of course, profitable companies with a history of great earnings growth are generally safer bets. So you may wish to see this free collection of other companies that have reasonable P/E ratios and have grown earnings strongly.

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