King Stone Energy Group Limited (HKG:663) shareholders that were waiting for something to happen have been dealt a blow with a 26% share price drop in the last month. The drop over the last 30 days has capped off a tough year for shareholders, with the share price down 34% in that time.

Even after such a large drop in price, King Stone Energy Group may still be sending very bullish signals at the moment with its price-to-earnings (or "P/E") ratio of 2x, since almost half of all companies in Hong Kong have P/E ratios greater than 10x and even P/E's higher than 21x 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.

It looks like earnings growth has deserted King Stone Energy Group recently, which is not something to boast about. It might be that many expect the uninspiring earnings performance to worsen, which has repressed the P/E. If not, then existing shareholders may be feeling optimistic about the future direction of the share price.

Check out our latest analysis for King Stone Energy Group

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

The only time you'd be truly comfortable seeing a P/E as depressed as King Stone Energy Group's is when the company's growth is on track to lag the market decidedly.

If we review the last year of earnings, the company posted a result that saw barely any deviation from a year ago. The longer-term trend has been no better as the company has no earnings growth to show for over the last three years either. Therefore, it's fair to say that earnings growth has definitely eluded the company recently.

This is in contrast to the rest of the market, which is expected to grow by 26% over the next year, materially higher than the company's recent medium-term annualised growth rates.

In light of this, it's understandable that King Stone Energy Group's P/E sits below the majority of other companies. Apparently many shareholders weren't comfortable holding on to something they believe will continue to trail the bourse.

The Final Word

Shares in King Stone Energy Group have plummeted and its P/E is now low enough to touch the ground. 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.

As we suspected, our examination of King Stone Energy Group revealed its three-year earnings trends are contributing to its low P/E, given they look worse than current market expectations. 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.

Before you settle on your opinion, we've discovered 3 warning signs for King Stone Energy Group (1 shouldn't be ignored!) that you should be aware of.

Of course, you might find a fantastic investment by looking at a few good candidates. So take a peek at this free list of companies with a strong growth track record, trading on 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.