Yeal Electric Co., Ltd. (SZSE:300923) shares have continued their recent momentum with a 38% gain in the last month alone. Unfortunately, despite the strong performance over the last month, the full year gain of 4.2% isn't as attractive.

Since its price has surged higher, Yeal Electric may be sending bearish signals at the moment with its price-to-earnings (or "P/E") ratio of 40x, since almost half of all companies in China have P/E ratios under 33x and even P/E's lower than 20x are not unusual. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the elevated P/E.

Yeal Electric has been doing a good job lately as it's been growing earnings at a solid pace. One possibility is that the P/E is high because investors think this respectable earnings growth will be enough to outperform the broader market in the near future. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

How Is Yeal Electric's Growth Trending?

The only time you'd be truly comfortable seeing a P/E as high as Yeal Electric's is when the company's growth is on track to outshine the market.

If we review the last year of earnings growth, the company posted a terrific increase of 17%. Despite this strong recent growth, it's still struggling to catch up as its three-year EPS frustratingly shrank by 34% overall. 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 37% over the next year, which really puts the company's recent medium-term earnings decline into perspective.

In light of this, it's alarming that Yeal Electric's P/E sits above the majority of other companies. Apparently many investors in the company are way more bullish than recent times would indicate and aren't willing to let go of their stock at any price. There's a very 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.

The Key Takeaway

Yeal Electric's P/E is getting right up there since its shares have risen strongly. While the price-to-earnings ratio shouldn't be the defining factor in whether you buy a stock or not, it's quite a capable barometer of earnings expectations.

We've established that Yeal Electric currently trades on a much higher than expected P/E since its recent earnings have been in decline over the medium-term. Right now we are increasingly uncomfortable with the high P/E as this earnings performance is highly unlikely to support such positive sentiment for long. If recent medium-term earnings trends continue, it will place shareholders' investments at significant risk and potential investors in danger of paying an excessive premium.

Before you settle on your opinion, we've discovered 3 warning signs for Yeal Electric (2 are a bit unpleasant!) that 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.