Baida Group Co.,Ltd (SHSE:600865) shares have continued their recent momentum with a 27% gain in the last month alone. Looking back a bit further, it's encouraging to see the stock is up 48% in the last year.

Although its price has surged higher, you could still be forgiven for feeling indifferent about Baida GroupLtd's P/E ratio of 37.5x, since the median price-to-earnings (or "P/E") ratio in China is also close to 35x. However, investors might be overlooking a clear opportunity or potential setback if there is no rational basis for the P/E.

Recent times have been quite advantageous for Baida GroupLtd as its earnings have been rising very briskly. It might be that many expect the strong earnings performance to wane, which has kept the P/E from rising. If that doesn't eventuate, then existing shareholders have reason to be feeling optimistic about the future direction of the share price.

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

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

Taking a look back first, we see that the company grew earnings per share by an impressive 51% last year. Still, incredibly EPS has fallen 54% in total from three years ago, which is quite disappointing. Accordingly, shareholders would have felt downbeat about the medium-term rates of earnings growth.

Weighing that medium-term earnings trajectory against the broader market's one-year forecast for expansion of 38% shows it's an unpleasant look.

With this information, we find it concerning that Baida GroupLtd is trading at a fairly similar P/E to the market. It seems most investors are ignoring the recent poor growth rate and are hoping for a turnaround in the company's business prospects. Only the boldest would assume these prices are sustainable as a continuation of recent earnings trends is likely to weigh on the share price eventually.

The Final Word

Baida GroupLtd appears to be back in favour with a solid price jump getting its P/E back in line with most other companies. Typically, we'd caution against reading too much into price-to-earnings ratios when settling on investment decisions, though it can reveal plenty about what other market participants think about the company.

Our examination of Baida GroupLtd revealed its shrinking earnings over the medium-term aren't impacting its P/E as much as we would have predicted, given the market is set to grow. 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.

It's always necessary to consider the ever-present spectre of investment risk. We've identified 3 warning signs with Baida GroupLtd (at least 1 which is a bit unpleasant), and understanding these should be part of your investment process.

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.