In order to justify the effort of selecting individual stocks, it's worth striving to beat the returns from a market index fund. But the risk of stock picking is that you will likely buy under-performing companies. Unfortunately, that's been the case for longer term Xiamen Changelight Co., Ltd. (SZSE:300102) shareholders, since the share price is down 38% in the last three years, falling well short of the market decline of around 27%. Furthermore, it's down 17% in about a quarter. That's not much fun for holders. Of course, this share price action may well have been influenced by the 9.1% decline in the broader market, throughout the period.

After losing 6.5% this past week, it's worth investigating the company's fundamentals to see what we can infer from past performance.

In his essay The Superinvestors of Graham-and-Doddsville Warren Buffett described how share prices do not always rationally reflect the value of a business. 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.

During five years of share price growth, Xiamen Changelight moved from a loss to profitability. We would usually expect to see the share price rise as a result. So given the share price is down it's worth checking some other metrics too.

We note that, in three years, revenue has actually grown at a 12% annual rate, so that doesn't seem to be a reason to sell shares. This analysis is just perfunctory, but it might be worth researching Xiamen Changelight more closely, as sometimes stocks fall unfairly. This could present an opportunity.

You can see how earnings and revenue have changed over time in the image below (click on the chart to see the exact values).

Balance sheet strength is crucial. It might be well worthwhile taking a look at our free report on how its financial position has changed over time.

A Different Perspective

While it's never nice to take a loss, Xiamen Changelight shareholders can take comfort that their trailing twelve month loss of 12% wasn't as bad as the market loss of around 18%. Of course, the long term returns are far more important and the good news is that over five years, the stock has returned 2% for each year. It could be that the business is just facing some short term problems, but shareholders should keep a close eye on the fundamentals. 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. Case in point: We've spotted 1 warning sign for Xiamen Changelight 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.

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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.

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