Hongli Zhihui Group Co.,Ltd. (SZSE:300219) shareholders have had their patience rewarded with a 52% share price jump in the last month. Unfortunately, despite the strong performance over the last month, the full year gain of 7.3% isn't as attractive.

Although its price has surged higher, it's still not a stretch to say that Hongli Zhihui GroupLtd's price-to-earnings (or "P/E") ratio of 35.5x right now seems quite "middle-of-the-road" compared to the market in China, where the median P/E ratio is around 34x. Although, it's not wise to simply ignore the P/E without explanation as investors may be disregarding a distinct opportunity or a costly mistake.

For example, consider that Hongli Zhihui GroupLtd's financial performance has been poor lately as its earnings have been in decline. It might be that many expect the company to put the disappointing earnings performance behind them over the coming period, which has kept the P/E from falling. If you like the company, you'd at least be hoping this is the case so that you could potentially pick up some stock while it's not quite in favour.

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

The only time you'd be comfortable seeing a P/E like Hongli Zhihui GroupLtd's is when the company's growth is tracking the market closely.

Retrospectively, the last year delivered a frustrating 14% decrease to the company's bottom line. The last three years don't look nice either as the company has shrunk EPS by 8.5% in aggregate. Accordingly, shareholders would have felt downbeat about the medium-term rates of earnings growth.

In contrast to the company, the rest of the market is expected to grow by 37% over the next year, which really puts the company's recent medium-term earnings decline into perspective.

In light of this, it's somewhat alarming that Hongli Zhihui GroupLtd's P/E sits in line with the majority of other companies. It seems most investors are ignoring the recent poor growth rate and are hoping for a turnaround in the company's business prospects. There's a good chance existing shareholders are setting themselves up for future disappointment if the P/E falls to levels more in line with the recent negative growth rates.

What We Can Learn From Hongli Zhihui GroupLtd's P/E?

Hongli Zhihui GroupLtd's stock has a lot of momentum behind it lately, which has brought its P/E level with the market. 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 Hongli Zhihui GroupLtd currently trades on a higher than expected P/E since its recent earnings have been in decline over the medium-term. When we see earnings heading backwards and underperforming the market forecasts, we suspect the share price is at risk of declining, sending the moderate P/E lower. If recent medium-term earnings trends continue, it will place shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

Plus, you should also learn about these 3 warning signs we've spotted with Hongli Zhihui GroupLtd.

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.