The Forest Packaging Group Co.,Ltd. (SHSE:605500) share price has fared very poorly over the last month, falling by a substantial 25%. The drop over the last 30 days has capped off a tough year for shareholders, with the share price down 20% in that time.

After such a large drop in price, Forest Packaging GroupLtd may be sending bullish signals at the moment with its price-to-earnings (or "P/E") ratio of 20.7x, since almost half of all companies in China have P/E ratios greater than 27x and even P/E's higher than 48x 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 limited.

For example, consider that Forest Packaging GroupLtd's financial performance has been poor lately as its earnings have been in decline. One possibility is that the P/E is low because investors think the company won't do enough to avoid underperforming the broader market in the near future. However, if this doesn't eventuate then existing shareholders may be feeling optimistic about the future direction of the share price.

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

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

In order to justify its P/E ratio, Forest Packaging GroupLtd would need to produce sluggish growth that's trailing the market.

Taking a look back first, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 39%. The last three years don't look nice either as the company has shrunk EPS by 54% in aggregate. So unfortunately, we have to acknowledge that the company has not done a great job of growing earnings over that time.

In contrast to the company, the rest of the market is expected to grow by 42% over the next year, which really puts the company's recent medium-term earnings decline into perspective.

With this information, we are not surprised that Forest Packaging GroupLtd is trading at a P/E lower than the market. 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.

The Bottom Line On Forest Packaging GroupLtd's P/E

Forest Packaging GroupLtd's P/E has taken a tumble along with its share price. 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.

We've established that Forest Packaging GroupLtd maintains its low P/E on the weakness of its sliding earnings over the medium-term, 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 need to take note of risks, for example - Forest Packaging GroupLtd has 2 warning signs (and 1 which can't be ignored) we think you should know about.

If P/E ratios interest you, you may wish to see this free collection of other companies with strong earnings growth and low P/E ratios.

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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.