Canmax Technologies Co., Ltd.'s (SZSE:300390) price-to-earnings (or "P/E") ratio of 6.5x might make it look like a strong buy right now compared to the market in China, where around half of the companies have P/E ratios above 35x and even P/E's above 63x are quite common. Nonetheless, we'd need to dig a little deeper to determine if there is a rational basis for the highly reduced P/E.

For instance, Canmax Technologies' receding earnings in recent times would have to be some food for thought. It might be that many expect the disappointing earnings performance to continue or accelerate, which has repressed the P/E. However, if this doesn't eventuate then existing shareholders may be feeling optimistic about the future direction of the share price.

See our latest analysis for Canmax Technologies

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

Canmax Technologies' P/E ratio would be typical for a company that's expected to deliver very poor growth or even falling earnings, and importantly, perform much worse than the market.

If we review the last year of earnings, dishearteningly the company's profits fell to the tune of 45%. Even so, admirably EPS has lifted 1,055% in aggregate from three years ago, notwithstanding the last 12 months. So we can start by confirming that the company has generally done a very good job of growing earnings over that time, even though it had some hiccups along the way.

Weighing that recent medium-term earnings trajectory against the broader market's one-year forecast for expansion of 44% shows it's noticeably more attractive on an annualised basis.

In light of this, it's peculiar that Canmax Technologies' P/E sits below the majority of other companies. Apparently some shareholders believe the recent performance has exceeded its limits and have been accepting significantly lower selling prices.

The Key Takeaway

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.

Our examination of Canmax Technologies revealed its three-year earnings trends aren't contributing to its P/E anywhere near as much as we would have predicted, given they look better than current market expectations. When we see strong earnings with faster-than-market growth, we assume potential risks are what might be placing significant pressure on the P/E ratio. It appears many are indeed anticipating earnings instability, because the persistence of these recent medium-term conditions would normally provide a boost to the share price.

You should always think about risks. Case in point, we've spotted 3 warning signs for Canmax Technologies you should be aware of, and 1 of them is concerning.

If these risks are making you reconsider your opinion on Canmax Technologies, explore our interactive list of high quality stocks to get an idea of what else is out there.

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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.