Anhui Quanchai Engine Co., Ltd. (SHSE:600218) shareholders should be happy to see the share price up 20% in the last month. But that doesn't change the fact that the returns over the last three years have been less than pleasing. After all, the share price is down 38% in the last three years, significantly under-performing the market.

While the last three years has been tough for Anhui Quanchai Engine shareholders, this past week has shown signs of promise. So let's look at the longer term fundamentals and see if they've been the driver of the negative returns.

To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' By comparing earnings per share (EPS) and share price changes over time, we can get a feel for how investor attitudes to a company have morphed over time.

Anhui Quanchai Engine saw its EPS decline at a compound rate of 28% per year, over the last three years. This fall in the EPS is worse than the 15% compound annual share price fall. This suggests that the market retains some optimism around long term earnings stability, despite past EPS declines.

The company's earnings per share (over time) is depicted in the image below (click to see the exact numbers).

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

A Different Perspective

Anhui Quanchai Engine shareholders are down 8.1% for the year (even including dividends), but the market itself is up 3.3%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Unfortunately, last year's performance may indicate unresolved challenges, given that it was worse than the annualised loss of 5% over the last half decade. Generally speaking long term share price weakness can be a bad sign, though contrarian investors might want to research the stock in hope of a turnaround. It's always interesting to track share price performance over the longer term. But to understand Anhui Quanchai Engine better, we need to consider many other factors. To that end, you should learn about the 3 warning signs we've spotted with Anhui Quanchai Engine (including 1 which makes us a bit uncomfortable) .

If you would prefer to check out another company -- one with potentially superior financials -- then do not miss this free list of companies that have proven they can grow earnings.

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

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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.