It's not a stretch to say that Anhui Expressway Company Limited's (HKG:995) price-to-earnings (or "P/E") ratio of 8.1x 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.

Anhui Expressway's earnings growth of late has been pretty similar to most other companies. It seems that many are expecting the mediocre earnings performance to persist, which has held the P/E back. If this is the case, then at least existing shareholders won't be losing sleep over the current share price.

Does Growth Match The P/E?

In order to justify its P/E ratio, Anhui Expressway would need to produce growth that's similar to the market.

Taking a look back first, we see that there was hardly any earnings per share growth to speak of for the company over the past year. Fortunately, a few good years before that means that it was still able to grow EPS by 6.9% in total over the last three years. Accordingly, shareholders probably wouldn't have been overly satisfied with the unstable medium-term growth rates.

Looking ahead now, EPS is anticipated to climb by 8.2% per annum during the coming three years according to the three analysts following the company. That's shaping up to be materially lower than the 12% each year growth forecast for the broader market.

In light of this, it's curious that Anhui Expressway's P/E sits in line with the majority of other companies. It seems most investors are ignoring the fairly limited growth expectations and are willing to pay up for exposure to the stock. Maintaining these prices will be difficult to achieve as this level of earnings growth is likely to weigh down the shares eventually.

What We Can Learn From Anhui Expressway'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.

We've established that Anhui Expressway currently trades on a higher than expected P/E since its forecast growth is lower than the wider market. Right now we are uncomfortable with the P/E as the predicted future earnings aren't likely to support a more positive sentiment for long. This places shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

There are also other vital risk factors to consider before investing and we've discovered 2 warning signs for Anhui Expressway that 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.