Chengdu ALD Aviation Manufacturing Corporation (SZSE:300696) shareholders will doubtless be very grateful to see the share price up 33% in the last quarter. But that doesn't change the fact that the returns over the last three years have been disappointing. Tragically, the share price declined 62% in that time. So it's good to see it climbing back up. While many would remain nervous, there could be further gains if the business can put its best foot forward.

With the stock having lost 8.9% in the past week, it's worth taking a look at business performance and seeing if there's any red flags.

While the efficient markets hypothesis continues to be taught by some, it has been proven that markets are over-reactive dynamic systems, and investors are not always rational. One way to examine how market sentiment has changed over time is to look at the interaction between a company's share price and its earnings per share (EPS).

Chengdu ALD Aviation Manufacturing saw its share price decline over the three years in which its EPS also dropped, falling to a loss. Due to the loss, it's not easy to use EPS as a reliable guide to the business. But it's safe to say we'd generally expect the share price to be lower as a result!

The graphic below depicts how EPS has changed over time (unveil the exact values by clicking on the image).

Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here.

A Different Perspective

Chengdu ALD Aviation Manufacturing shareholders are down 6.6% for the year (even including dividends), but the market itself is up 14%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. On the bright side, long term shareholders have made money, with a gain of 10% per year over half a decade. If the fundamental data continues to indicate long term sustainable growth, the current sell-off could be an opportunity worth considering. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. For instance, we've identified 2 warning signs for Chengdu ALD Aviation Manufacturing that you should be aware of.

If you like to buy stocks alongside management, then you might just love this free list of companies. (Hint: many of them are unnoticed AND have attractive valuation).

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on Chinese exchanges.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.
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.