Anhui Guofeng New Materials Co., Ltd. (SZSE:000859) shareholders will doubtless be very grateful to see the share price up 39% in the last week. But that cannot eclipse the less-than-impressive returns over the last three years. After all, the share price is down 40% in the last three years, significantly under-performing the market.

The recent uptick of 39% could be a positive sign of things to come, so let's take a look at historical fundamentals.

There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. One imperfect but simple way to consider how the market perception of a company has shifted is to compare the change in the earnings per share (EPS) with the share price movement.

Over the three years that the share price declined, Anhui Guofeng New Materials' earnings per share (EPS) dropped significantly, 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 image below shows how EPS has tracked over time (if you click on the image you can see greater detail).

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

A Different Perspective

The total return of 19% received by Anhui Guofeng New Materials shareholders over the last year isn't far from the market return of -20%. Unfortunately, last year's performance is a deterioration of an already poor long term track record, given the loss of 3% per year over the last five years. Weak performance over the long term usually destroys market confidence in a stock, but bargain hunters may want to take a closer look for signs of a turnaround. I find it very interesting to look at share price over the long term as a proxy for business performance. But to truly gain insight, we need to consider other information, too. For example, we've discovered 2 warning signs for Anhui Guofeng New Materials that you should be aware of before investing here.

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.