With a price-to-earnings (or "P/E") ratio of 20.6x Suzhou Etron Technologies Co.,Ltd. (SHSE:603380) may be sending bullish signals at the moment, given that almost half of all companies in China have P/E ratios greater than 27x and even P/E's higher than 51x are not unusual. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the reduced P/E.

Earnings have risen at a steady rate over the last year for Suzhou Etron TechnologiesLtd, which is generally not a bad outcome. One possibility is that the P/E is low because investors think this good earnings growth might actually underperform the broader market in the near future. If you like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's out of favour.

Does Growth Match The Low P/E?

There's an inherent assumption that a company should underperform the market for P/E ratios like Suzhou Etron TechnologiesLtd's to be considered reasonable.

Taking a look back first, we see that the company managed to grow earnings per share by a handy 2.6% last year. Still, lamentably EPS has fallen 21% in aggregate from three years ago, which is disappointing. Accordingly, shareholders would have felt downbeat about the medium-term rates of earnings growth.

Comparing that to the market, which is predicted to deliver 37% growth in the next 12 months, the company's downward momentum based on recent medium-term earnings results is a sobering picture.

With this information, we are not surprised that Suzhou Etron TechnologiesLtd is trading at a P/E lower than the market. However, we think shrinking earnings are unlikely to lead to a stable P/E over the longer term, which could set up shareholders for future disappointment. Even just maintaining these prices could be difficult to achieve as recent earnings trends are already weighing down the shares.

The Bottom Line On Suzhou Etron TechnologiesLtd's P/E

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.

As we suspected, our examination of Suzhou Etron TechnologiesLtd revealed its shrinking earnings over the medium-term are contributing to its low P/E, given the market is set to grow. 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.

And what about other risks? Every company has them, and we've spotted 2 warning signs for Suzhou Etron TechnologiesLtd you should know about.

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.