Success Dragon International Holdings Limited (HKG:1182) shareholders would be excited to see that the share price has had a great month, posting a 69% gain and recovering from prior weakness. The annual gain comes to 115% following the latest surge, making investors sit up and take notice.

Since its price has surged higher, Success Dragon International Holdings may be sending very bearish signals at the moment with a price-to-earnings (or "P/E") ratio of 21.5x, 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.

The earnings growth achieved at Success Dragon International Holdings over the last year would be more than acceptable for most companies. It might be that many expect the respectable earnings performance to beat most other companies over the coming period, which has increased investors' willingness to pay up for the stock. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

Is There Enough Growth For Success Dragon International Holdings?

The only time you'd be truly comfortable seeing a P/E as steep as Success Dragon International Holdings' is when the company's growth is on track to outshine the market decidedly.

Retrospectively, the last year delivered an exceptional 15% gain to the company's bottom line. Still, EPS has barely risen at all from three years ago in total, which is not ideal. 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 22% 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 Success Dragon International 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. 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 Success Dragon International Holdings' P/E

Success Dragon International Holdings' P/E is flying high just like its stock has during the last month. 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.

We've established that Success Dragon International Holdings 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. Unless the recent medium-term conditions improve markedly, it's very challenging to accept these prices as being reasonable.

There are also other vital risk factors to consider and we've discovered 3 warning signs for Success Dragon International Holdings (2 are a bit concerning!) that you should be aware of before investing here.

If you're unsure about the strength of Success Dragon International Holdings' business, why not explore our interactive list of stocks with solid business fundamentals for some other companies you may have missed.

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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.