To the annoyance of some shareholders, Sunlight (1977) Holdings Limited (HKG:8451) shares are down a considerable 29% in the last month, which continues a horrid run for the company. Still, a bad month hasn't completely ruined the past year with the stock gaining 40%, which is great even in a bull market.

Even after such a large drop in price, Sunlight (1977) Holdings may still be sending very bearish signals at the moment with a price-to-earnings (or "P/E") ratio of 16.4x, since almost half of all companies in Hong Kong have P/E ratios under 8x and even P/E's lower than 4x 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.

With earnings growth that's exceedingly strong of late, Sunlight (1977) Holdings has been doing very well. 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.

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

Sunlight (1977) Holdings' 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 150% last year. The latest three year period has also seen an excellent 64% overall rise in EPS, aided by its short-term performance. So we can start by confirming that the company has done a great job of growing earnings over that time.

Weighing that recent medium-term earnings trajectory against the broader market's one-year forecast for expansion of 24% shows it's noticeably less attractive on an annualised basis.

In light of this, it's alarming that Sunlight (1977) Holdings' P/E sits above the majority of other companies. Apparently many investors in the company are way more bullish than recent times would indicate and aren't willing to let go of their stock at any price. 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 recent growth rates.

What We Can Learn From Sunlight (1977) Holdings' P/E?

Even after such a strong price drop, Sunlight (1977) Holdings' P/E still exceeds the rest of the market significantly. 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.

Our examination of Sunlight (1977) Holdings revealed its three-year earnings trends aren't impacting its high P/E anywhere near as much as we would have predicted, given they look worse than current market expectations. 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. Unless the recent medium-term conditions improve markedly, it's very challenging to accept these prices as being reasonable.

It's always necessary to consider the ever-present spectre of investment risk. We've identified 2 warning signs with Sunlight (1977) Holdings, and understanding them should be part of your investment process.

You might be able to find a better investment than Sunlight (1977) Holdings. If you want a selection of possible candidates, check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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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.