The Ling Yue Services Group Limited (HKG:2165) share price has done very well over the last month, posting an excellent gain of 48%. Looking back a bit further, it's encouraging to see the stock is up 66% in the last year.

In spite of the firm bounce in price, given about half the companies in Hong Kong have price-to-earnings ratios (or "P/E's") above 10x, you may still consider Ling Yue Services Group as a highly attractive investment with its 2.9x P/E ratio. 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.

With earnings growth that's exceedingly strong of late, Ling Yue Services Group has been doing very well. It might be that many expect the strong earnings performance to degrade substantially, 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.

Does Growth Match The Low P/E?

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

Retrospectively, the last year delivered an exceptional 32% gain to the company's bottom line. EPS has also lifted 15% in aggregate from three years ago, mostly thanks to the last 12 months of growth. So we can start by confirming that the company has actually done a good job of growing earnings over that time.

Comparing that to the market, which is predicted to deliver 20% growth in the next 12 months, the company's momentum is weaker based on recent medium-term annualised earnings results.

With this information, we can see why Ling Yue Services Group is trading at a P/E lower than the market. It seems most investors are expecting to see the recent limited growth rates continue into the future and are only willing to pay a reduced amount for the stock.

The Bottom Line On Ling Yue Services Group's P/E

Even after such a strong price move, Ling Yue Services Group's P/E still trails the rest of the market significantly. Using the price-to-earnings ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

We've established that Ling Yue Services Group maintains its low P/E on the weakness of its recent three-year growth being lower than the wider market forecast, as expected. 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.

You should always think about risks. Case in point, we've spotted 2 warning signs for Ling Yue Services Group you should be aware of.

It's important to make sure you look for a great company, not just the first idea you come across. So take a peek at this free list of interesting companies with strong recent earnings growth (and a low P/E).

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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.