With a price-to-earnings (or "P/E") ratio of 21.9x NagaCorp Ltd. (HKG:3918) may be sending very bearish signals at the moment, given that almost half of all companies in Hong Kong have P/E ratios under 9x and even P/E's lower than 6x are not unusual. However, the P/E might be quite high for a reason and it requires further investigation to determine if it's justified.

While the market has experienced earnings growth lately, NagaCorp's earnings have gone into reverse gear, which is not great. It might be that many expect the dour earnings performance to recover substantially, which has kept the P/E from collapsing. If not, then existing shareholders may be extremely nervous about the viability of the share price.

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

NagaCorp'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.

If we review the last year of earnings, dishearteningly the company's profits fell to the tune of 32%. However, a few very strong years before that means that it was still able to grow EPS by an impressive 2,010% in total over the last three years. Accordingly, while they would have preferred to keep the run going, shareholders would probably welcome the medium-term rates of earnings growth.

Shifting to the future, estimates from the six analysts covering the company suggest earnings should grow by 43% each year over the next three years. That's shaping up to be materially higher than the 12% per annum growth forecast for the broader market.

With this information, we can see why NagaCorp is trading at such a high P/E compared to the market. It seems most investors are expecting this strong future growth and are willing to pay more for the stock.

The Bottom Line On NagaCorp's P/E

We'd say the price-to-earnings ratio's power isn't primarily as a valuation instrument but rather to gauge current investor sentiment and future expectations.

We've established that NagaCorp maintains its high P/E on the strength of its forecast growth being higher than the wider market, as expected. At this stage investors feel the potential for a deterioration in earnings isn't great enough to justify a lower P/E ratio. It's hard to see the share price falling strongly in the near future under these circumstances.

You always need to take note of risks, for example - NagaCorp has 2 warning signs we think you should be aware of.

If P/E ratios interest you, you may wish to see this free collection of other companies with strong earnings growth and low P/E ratios.

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