Many investors define successful investing as beating the market average over the long term. But in any portfolio, there are likely to be some stocks that fall short of that benchmark. We regret to report that long term Goldwind Science And Technology Co., Ltd. (SZSE:002202) shareholders have had that experience, with the share price dropping 26% in three years, versus a market decline of about 12%. Furthermore, it's down 18% in about a quarter. That's not much fun for holders. We note that the company has reported results fairly recently; and the market is hardly delighted. You can check out the latest numbers in our company report.

Although the past week has been more reassuring for shareholders, they're still in the red over the last three years, so let's see if the underlying business has been responsible for the decline.

See our latest analysis for Goldwind Science And Technology

While markets are a powerful pricing mechanism, share prices reflect investor sentiment, not just 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.

During the three years that the share price fell, Goldwind Science And Technology's earnings per share (EPS) dropped by 25% each year. In comparison the 10% compound annual share price decline isn't as bad as the EPS drop-off. So the market may not be too worried about the EPS figure, at the moment -- or it may have previously priced some of the drop in.

You can see how EPS has changed over time in the image below (click on the chart to see the exact values).

It might be well worthwhile taking a look at our free report on Goldwind Science And Technology's earnings, revenue and cash flow.

What About Dividends?

As well as measuring the share price return, investors should also consider the total shareholder return (TSR). The TSR is a return calculation that accounts for the value of cash dividends (assuming that any dividend received was reinvested) and the calculated value of any discounted capital raisings and spin-offs. So for companies that pay a generous dividend, the TSR is often a lot higher than the share price return. We note that for Goldwind Science And Technology the TSR over the last 3 years was -23%, which is better than the share price return mentioned above. And there's no prize for guessing that the dividend payments largely explain the divergence!

A Different Perspective

While the broader market lost about 4.4% in the twelve months, Goldwind Science And Technology shareholders did even worse, losing 20% (even including dividends). Having said that, it's inevitable that some stocks will be oversold in a falling market. The key is to keep your eyes on the fundamental developments. Unfortunately, last year's performance may indicate unresolved challenges, given that it was worse than the annualised loss of 1.0% 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. To that end, you should learn about the 3 warning signs we've spotted with Goldwind Science And Technology (including 1 which makes us a bit uncomfortable) .

For those who like to find winning investments this free list of growing companies with recent insider purchasing, could be just the ticket.

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.