Despite an already strong run, SMC Electric Limited (HKG:2381) shares have been powering on, with a gain of 30% in the last thirty days. Notwithstanding the latest gain, the annual share price return of 8.7% isn't as impressive.

Although its price has surged higher, it's still not a stretch to say that SMC Electric's price-to-earnings (or "P/E") ratio of 10.8x right now seems quite "middle-of-the-road" compared to the market in Hong Kong, where the median P/E ratio is around 9x. However, investors might be overlooking a clear opportunity or potential setback if there is no rational basis for the P/E.

For example, consider that SMC Electric's financial performance has been poor lately as its earnings have been in decline. One possibility is that the P/E is moderate because investors think the company might still do enough to be in line with the broader market in the near future. 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?

There's an inherent assumption that a company should be matching the market for P/E ratios like SMC Electric's to be considered reasonable.

Taking a look back first, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 7.1%. The last three years don't look nice either as the company has shrunk EPS by 46% in aggregate. Therefore, it's fair to say the earnings growth recently has been undesirable for the company.

In contrast to the company, the rest of the market is expected to grow by 20% 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 SMC Electric's P/E sits in line with the majority of other companies. Apparently many investors in the company are way less bearish than recent times would indicate and aren't willing to let go of their stock right now. 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.

The Final Word

Its shares have lifted substantially and now SMC Electric's P/E is also back up to the market median. 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 SMC Electric currently trades on a higher than expected P/E since its recent earnings have been in decline over the medium-term. Right now we are uncomfortable with the P/E as this earnings performance is unlikely to support a more positive sentiment for long. If recent medium-term earnings trends continue, it will place shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

Don't forget that there may be other risks. For instance, we've identified 3 warning signs for SMC Electric (1 can't be ignored) you should be aware of.

Of course, you might find a fantastic investment by looking at a few good candidates. So take a peek at this free list of companies with a strong growth track record, trading on 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.

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