China Oriental Group Company Limited (HKG:581) shares have continued their recent momentum with a 28% gain in the last month alone. The last 30 days bring the annual gain to a very sharp 46%.

Even after such a large jump in price, given about half the companies operating in Hong Kong's Metals and Mining industry have price-to-sales ratios (or "P/S") above 0.7x, you may still consider China Oriental Group as an attractive investment with its 0.1x 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 limited.

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Check out our latest analysis for China Oriental Group

What Does China Oriental Group's Recent Performance Look Like?

As an illustration, revenue has deteriorated at China Oriental Group over the last year, which is not ideal at all. Perhaps the market believes the recent revenue performance isn't good enough to keep up the industry, causing the P/S ratio to suffer. If you like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's out of favour.

Although there are no analyst estimates available for China Oriental Group, take a look at this free data-rich visualisation to see how the company stacks up on earnings, revenue and cash flow.

What Are Revenue Growth Metrics Telling Us About The Low P/S?

In order to justify its P/S ratio, China Oriental Group would need to produce sluggish growth that's trailing the industry.

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 7.1%. This means it has also seen a slide in revenue over the longer-term as revenue is down 17% in total over the last three years. 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 11% over the next year, which really puts the company's recent medium-term revenue decline into perspective.

With this information, we are not surprised that China Oriental Group is trading at a P/S lower than the industry. However, we think shrinking revenues are unlikely to lead to a stable P/S over the longer term, which could set up shareholders for future disappointment. Even just maintaining these prices could be difficult to achieve as recent revenue trends are already weighing down the shares.

The Bottom Line On China Oriental Group's P/S

The latest share price surge wasn't enough to lift China Oriental Group's P/S close to the industry median. 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.

It's no surprise that China Oriental Group maintains its low P/S off the back of its sliding revenue over the medium-term. At this stage investors feel the potential for an improvement in revenue isn't great enough to justify a higher P/S ratio. Given the current circumstances, it seems unlikely that the share price will experience any significant movement in either direction in the near future if recent medium-term revenue trends persist.

Before you take the next step, you should know about the 3 warning signs for China Oriental Group (1 is a bit concerning!) that we have uncovered.

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

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