Tam Jai International Co. Limited's (HKG:2217) price-to-earnings (or "P/E") ratio of 13.6x might 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 8x and even P/E's below 4x 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.

Recent times haven't been advantageous for Tam Jai International as its earnings have been falling quicker than most other companies. One possibility is that the P/E is high because investors think the company will turn things around completely and accelerate past most others in the market. If not, then existing shareholders may be very nervous about the viability of the share price.

Check out our latest analysis for Tam Jai International

How Is Tam Jai International's Growth Trending?

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

Taking a look back first, the company's earnings per share growth last year wasn't something to get excited about as it posted a disappointing decline of 39%. This means it has also seen a slide in earnings over the longer-term as EPS is down 23% in total over the last three years. Accordingly, shareholders would have felt downbeat about the medium-term rates of earnings growth.

Shifting to the future, estimates from the four analysts covering the company suggest earnings should grow by 33% per year over the next three years. That's shaping up to be materially higher than the 14% per year growth forecast for the broader market.

In light of this, it's understandable that Tam Jai International's P/E sits above the majority of other companies. It seems most investors are expecting this strong future growth and are willing to pay more for the stock.

The Key Takeaway

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 Tam Jai International 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.

And what about other risks? Every company has them, and we've spotted 3 warning signs for Tam Jai International you should know about.

Of course, you might find a fantastic investment by looking at a few good candidates. So take a peek at this free list of companies with a strong growth track record, trading on a P/E below 20x.

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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.