As an investor its worth striving to ensure your overall portfolio beats the market average. But in any portfolio, there are likely to be some stocks that fall short of that benchmark. We regret to report that long term Jiaze Renewables Corporation Limited (SHSE:601619) shareholders have had that experience, with the share price dropping 45% in three years, versus a market decline of about 12%.

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.

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

During the unfortunate three years of share price decline, Jiaze Renewables actually saw its earnings per share (EPS) improve by 13% per year. This is quite a puzzle, and suggests there might be something temporarily buoying the share price. Or else the company was over-hyped in the past, and so its growth has disappointed.

Since the change in EPS doesn't seem to correlate with the change in share price, it's worth taking a look at other metrics.

Revenue is actually up 22% over the three years, so the share price drop doesn't seem to hinge on revenue, either. This analysis is just perfunctory, but it might be worth researching Jiaze Renewables 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).

If you are thinking of buying or selling Jiaze Renewables stock, you should check out this FREE detailed report on its balance sheet.

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. Whereas the share price return only reflects the change in the share price, the TSR includes the value of dividends (assuming they were reinvested) and the benefit of any discounted capital raising or spin-off. It's fair to say that the TSR gives a more complete picture for stocks that pay a dividend. In the case of Jiaze Renewables, it has a TSR of -41% for the last 3 years. That exceeds its share price return that we previously mentioned. The dividends paid by the company have thusly boosted the total shareholder return.

A Different Perspective

Jiaze Renewables shareholders are down 7.4% for the year (even including dividends), but the market itself is up 7.5%. 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. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 1.3% per year over five years. 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. Even so, be aware that Jiaze Renewables is showing 2 warning signs in our investment analysis , you should know about...

If you are like me, then you will not want to miss this free list of undervalued small caps that insiders are buying.

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.