In order to justify the effort of selecting individual stocks, it's worth striving to beat the returns from a market index fund. But if you try your hand at stock picking, you risk returning less than the market. Unfortunately, that's been the case for longer term Guangdong Ganhua Science & Industry Co.,Ltd. (SZSE:000576) shareholders, since the share price is down 46% in the last three years, falling well short of the market decline of around 19%. The more recent news is of little comfort, with the share price down 26% in a year. More recently, the share price has dropped a further 22% in a month. But this could be related to poor market conditions -- stocks are down 9.1% in the same time.

After losing 14% this past week, it's worth investigating the company's fundamentals to see what we can infer from past performance.

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just underlying business performance. One flawed but reasonable way to assess how sentiment around a company has changed is to compare the earnings per share (EPS) with the share price.

Guangdong Ganhua Science & IndustryLtd 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. However, we can say we'd expect to see a falling share price in this scenario.

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

It might be well worthwhile taking a look at our free report on Guangdong Ganhua Science & IndustryLtd's earnings, revenue and cash flow.

A Different Perspective

Guangdong Ganhua Science & IndustryLtd shareholders are down 26% for the year, but the market itself is up 7.7%. Even the share prices of good stocks drop sometimes, but we want to see improvements in the fundamental metrics of a business, before getting too interested. Unfortunately, last year's performance may indicate unresolved challenges, given that it was worse than the annualised loss of 3% 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. 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 1 warning sign for Guangdong Ganhua Science & IndustryLtd 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.