For many investors, the main point of stock picking is to generate higher returns than the overall market. But its virtually certain that sometimes you will buy stocks that fall short of the market average returns. We regret to report that long term Shenzhen Desay Battery Technology Co., Ltd. (SZSE:000049) shareholders have had that experience, with the share price dropping 44% in three years, versus a market decline of about 29%. And more recent buyers are having a tough time too, with a drop of 31% in the last year. Unfortunately the share price momentum is still quite negative, with prices down 20% in thirty days.

Since Shenzhen Desay Battery Technology has shed CN¥427m from its value in the past 7 days, let's see if the longer term decline has been driven by the business' economics.

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.

During the three years that the share price fell, Shenzhen Desay Battery Technology's earnings per share (EPS) dropped by 18% each year. The 18% average annual share price decline is remarkably close to the EPS decline. That suggests that the market sentiment around the company hasn't changed much over that time, despite the disappointment. Rather, the share price has approximately tracked EPS growth.

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

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

What About Dividends?

When looking at investment returns, it is important to consider the difference between total shareholder return (TSR) and share price return. 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. Arguably, the TSR gives a more comprehensive picture of the return generated by a stock. As it happens, Shenzhen Desay Battery Technology's TSR for the last 3 years was -36%, which exceeds the share price return mentioned earlier. This is largely a result of its dividend payments!

A Different Perspective

We regret to report that Shenzhen Desay Battery Technology shareholders are down 24% for the year (even including dividends). Unfortunately, that's worse than the broader market decline of 18%. However, it could simply be that the share price has been impacted by broader market jitters. It might be worth keeping an eye on the fundamentals, in case there's a good opportunity. Longer term investors wouldn't be so upset, since they would have made 1.0%, each year, over five years. If the fundamental data continues to indicate long term sustainable growth, the current sell-off could be an opportunity worth considering. While it is well worth considering the different impacts that market conditions can have on the share price, there are other factors that are even more important. For example, we've discovered 3 warning signs for Shenzhen Desay Battery Technology that you should be aware of before investing here.

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.