Mulsanne Group Holding Limited (HKG:1817) shareholders won't be pleased to see that the share price has had a very rough month, dropping 30% and undoing the prior period's positive performance. For any long-term shareholders, the last month ends a year to forget by locking in a 59% share price decline.

In spite of the heavy fall in price, Mulsanne Group Holding's price-to-earnings (or "P/E") ratio of 21.2x might still make it look like a strong sell right now compared to the market in Hong Kong, where around half of the companies have P/E ratios below 9x and even P/E's below 5x are quite common. However, the P/E might be quite high for a reason and it requires further investigation to determine if it's justified.

Mulsanne Group Holding certainly has been doing a great job lately as it's been growing earnings at a really rapid pace. It seems that many are expecting the strong earnings performance to beat most other companies over the coming period, which has increased investors' willingness to pay up for the stock. If not, then existing shareholders might be a little nervous about the viability of the share price.

Is There Enough Growth For Mulsanne Group Holding?

Mulsanne Group Holding's P/E ratio would be typical for a company that's expected to deliver very strong growth, and importantly, perform much better than the market.

Taking a look back first, we see that the company grew earnings per share by an impressive 218% last year. However, the latest three year period hasn't been as great in aggregate as it didn't manage to provide any growth at all. Therefore, it's fair to say that earnings growth has been inconsistent recently for the company.

Comparing that to the market, which is predicted to deliver 19% growth in the next 12 months, the company's momentum is weaker based on recent medium-term annualised earnings results.

With this information, we find it concerning that Mulsanne Group Holding is trading at a P/E higher than the market. It seems most investors are ignoring the fairly limited recent growth rates and are hoping for a turnaround in the company's business prospects. Only the boldest would assume these prices are sustainable as a continuation of recent earnings trends is likely to weigh heavily on the share price eventually.

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

A significant share price dive has done very little to deflate Mulsanne Group Holding's very lofty P/E. 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 Mulsanne Group Holding currently trades on a much higher than expected P/E since its recent three-year growth is lower than the wider market forecast. Right now we are increasingly uncomfortable with the high P/E as this earnings performance isn't likely to support such positive sentiment for long. If recent medium-term earnings trends continue, it will place shareholders' investments at significant risk and potential investors in danger of paying an excessive premium.

And what about other risks? Every company has them, and we've spotted 3 warning signs for Mulsanne Group Holding (of which 2 are a bit concerning!) you should know about.

If these risks are making you reconsider your opinion on Mulsanne Group Holding, 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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com