Those holding Autek China Inc. (SZSE:300595) shares would be relieved that the share price has rebounded 25% in the last thirty days, but it needs to keep going to repair the recent damage it has caused to investor portfolios. Not all shareholders will be feeling jubilant, since the share price is still down a very disappointing 39% in the last twelve months.

In spite of the firm bounce in price, you could still be forgiven for feeling indifferent about Autek China's P/E ratio of 28.3x, since the median price-to-earnings (or "P/E") ratio in China is also close to 30x. While this might not raise any eyebrows, if the P/E ratio is not justified investors could be missing out on a potential opportunity or ignoring looming disappointment.

Recent times have been pleasing for Autek China as its earnings have risen in spite of the market's earnings going into reverse. It might be that many expect the strong earnings performance to deteriorate like the rest, which has kept the P/E from rising. If you like the company, you'd be hoping this isn't the case so that you could potentially pick up some stock while it's not quite in favour.

How Is Autek China's Growth Trending?

There's an inherent assumption that a company should be matching the market for P/E ratios like Autek China's to be considered reasonable.

If we review the last year of earnings, the company posted a result that saw barely any deviation from a year ago. Still, the latest three year period has seen an excellent 75% overall rise in EPS, in spite of its uninspiring short-term performance. Therefore, it's fair to say the earnings growth recently has been superb for the company.

Shifting to the future, estimates from the ten analysts covering the company suggest earnings should grow by 26% over the next year. Meanwhile, the rest of the market is forecast to expand by 42%, which is noticeably more attractive.

With this information, we find it interesting that Autek China is trading at a fairly similar P/E to the market. Apparently many investors in the company are less bearish than analysts indicate and aren't willing to let go of their stock right now. Maintaining these prices will be difficult to achieve as this level of earnings growth is likely to weigh down the shares eventually.

The Key Takeaway

Its shares have lifted substantially and now Autek China's P/E is also back up to the market median. 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 Autek China currently trades on a higher than expected P/E since its forecast growth is lower than the wider market. Right now we are uncomfortable with the P/E as the predicted future earnings aren't likely to support a more positive sentiment for long. This places shareholders' investments at risk and potential investors in danger of paying an unnecessary premium.

Plus, you should also learn about this 1 warning sign we've spotted with Autek China.

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.