Despite an already strong run, Alibaba Group Holding Limited (NYSE:BABA) shares have been powering on, with a gain of 33% in the last thirty days. The last 30 days bring the annual gain to a very sharp 68%.

In spite of the firm bounce in price, there still wouldn't be many who think Alibaba Group Holding's price-to-earnings (or "P/E") ratio of 17.5x is worth a mention when the median P/E in the United States is similar at about 19x. However, investors might be overlooking a clear opportunity or potential setback if there is no rational basis for the P/E.

With earnings growth that's superior to most other companies of late, Alibaba Group Holding has been doing relatively well. One possibility is that the P/E is moderate because investors think this strong earnings performance might be about to tail off. If not, then existing shareholders have reason to be feeling optimistic about the future direction of the share price.

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

Alibaba Group Holding's P/E ratio would be typical for a company that's only expected to deliver moderate growth, and importantly, perform in line with the market.

If we review the last year of earnings growth, the company posted a terrific increase of 128%. The strong recent performance means it was also able to grow EPS by 350% in total over the last three years. Therefore, it's fair to say the earnings growth recently has been superb for the company.

Shifting to the future, estimates from the analysts covering the company suggest earnings should grow by 3.8% each year over the next three years. With the market predicted to deliver 11% growth per year, the company is positioned for a weaker earnings result.

With this information, we find it interesting that Alibaba Group Holding is trading at a fairly similar P/E to the market. Apparently many investors in the company are less bearish than analysts indicate and aren't willing to let go of their stock right now. Maintaining these prices will be difficult to achieve as this level of earnings growth is likely to weigh down the shares eventually.

The Bottom Line On Alibaba Group Holding's P/E

Its shares have lifted substantially and now Alibaba Group Holding's P/E is also back up to the market median. Generally, our preference is to limit the use of the price-to-earnings ratio to establishing what the market thinks about the overall health of a company.

We've established that Alibaba Group Holding 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.

A lot of potential risks can sit within a company's balance sheet. Take a look at our free balance sheet analysis for Alibaba Group Holding with six simple checks on some of these key factors.

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.

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.