Perfect Optronics Limited's (HKG:8311) 26% Share Price Plunge Could Signal Some Risk

Unfortunately for some shareholders, the Perfect Optronics Limited (HKG:8311) share price has dived 26% in the last thirty days, prolonging recent pain. The recent drop completes a disastrous twelve months for shareholders, who are sitting on a 58% loss during that time.

In spite of the heavy fall in price, Perfect Optronics may still be sending very bearish signals at the moment with a price-to-earnings (or "P/E") ratio of 30.9x, since almost half of all companies in Hong Kong have P/E ratios under 9x and even P/E's lower than 5x 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.

It looks like earnings growth has deserted Perfect Optronics recently, which is not something to boast about. It might be that many are expecting an improvement to the uninspiring earnings performance over the coming period, which has kept the P/E from collapsing. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

See our latest analysis for Perfect Optronics

We don't have analyst forecasts, but you can see how recent trends are setting up the company for the future by checking out our free report on Perfect Optronics' earnings, revenue and cash flow.

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

There's an inherent assumption that a company should far outperform the market for P/E ratios like Perfect Optronics' to be considered reasonable.

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. The longer-term trend has been no better as the company has no earnings growth to show for over the last three years either. Therefore, it's fair to say that earnings growth has definitely eluded the company recently.

Comparing that to the market, which is predicted to deliver 24% growth in the next 12 months, the company's momentum is weaker based on recent medium-term annualised earnings results.

In light of this, it's alarming that Perfect Optronics' P/E sits above the majority of other companies. It seems most investors are ignoring the fairly limited recent growth rates and are hoping for a turnaround in the company's business prospects. 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 Perfect Optronics' P/E?

Even after such a strong price drop, Perfect Optronics' P/E still exceeds the rest of the market significantly. Using the price-to-earnings ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

Our examination of Perfect Optronics 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. When we see weak earnings with slower than market growth, we suspect the share price is at risk of declining, sending the high P/E lower. 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 Perfect Optronics (of which 1 is concerning!) you should know about.

It's important to make sure you look for a great company, not just the first idea you come across. So take a peek at this free list of interesting companies with strong recent earnings growth (and 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.