Roiserv Lifestyle Services Co., Ltd. (HKG:2146) shareholders would be excited to see that the share price has had a great month, posting a 30% gain and recovering from prior weakness. Unfortunately, the gains of the last month did little to right the losses of the last year with the stock still down 22% over that time.

In spite of the firm bounce in price, Roiserv Lifestyle Services may still be sending very bullish signals at the moment with its price-to-earnings (or "P/E") ratio of 4.6x, since almost half of all companies in Hong Kong have P/E ratios greater than 10x and even P/E's higher than 20x are not unusual. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's so limited.

For example, consider that Roiserv Lifestyle Services' financial performance has been poor lately as its earnings have been in decline. It might be that many expect the disappointing earnings performance to continue or accelerate, which has repressed the P/E. 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.

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

In order to justify its P/E ratio, Roiserv Lifestyle Services would need to produce anemic growth that's substantially trailing the market.

If we review the last year of earnings, dishearteningly the company's profits fell to the tune of 27%. The last three years don't look nice either as the company has shrunk EPS by 75% in aggregate. Therefore, it's fair to say the earnings growth recently has been undesirable for the company.

Comparing that to the market, which is predicted to deliver 22% growth in the next 12 months, the company's downward momentum based on recent medium-term earnings results is a sobering picture.

In light of this, it's understandable that Roiserv Lifestyle Services' P/E would sit below the majority of other companies. Nonetheless, there's no guarantee the P/E has reached a floor yet with earnings going in reverse. Even just maintaining these prices could be difficult to achieve as recent earnings trends are already weighing down the shares.

What We Can Learn From Roiserv Lifestyle Services' P/E?

Shares in Roiserv Lifestyle Services are going to need a lot more upward momentum to get the company's P/E out of its slump. Generally, our preference is to limit the use of the price-to-earnings ratio to establishing what the market thinks about the overall health of a company.

As we suspected, our examination of Roiserv Lifestyle Services revealed its shrinking earnings over the medium-term are contributing to its low P/E, given the market is set to grow. At this stage investors feel the potential for an improvement in earnings isn't great enough to justify a higher P/E ratio. Unless the recent medium-term conditions improve, they will continue to form a barrier for the share price around these levels.

And what about other risks? Every company has them, and we've spotted 2 warning signs for Roiserv Lifestyle Services (of which 1 shouldn't be ignored!) you should know about.

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

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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.