As an investor its worth striving to ensure your overall portfolio beats the market average. 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 Zhejiang Xinan Chemical Industrial Group Co.,Ltd (SHSE:600596) shareholders, since the share price is down 49% in the last three years, falling well short of the market decline of around 26%. The more recent news is of little comfort, with the share price down 32% in a year.

On a more encouraging note the company has added CN¥472m to its market cap in just the last 7 days, so let's see if we can determine what's driven the three-year loss for shareholders.

There is no denying that markets are sometimes efficient, but prices do not always reflect underlying business performance. One way to examine how market sentiment has changed over time is to look at the interaction between a company's share price and its earnings per share (EPS).

During the three years that the share price fell, Zhejiang Xinan Chemical Industrial GroupLtd's earnings per share (EPS) dropped by 48% each year. In comparison the 20% compound annual share price decline isn't as bad as the EPS drop-off. This suggests that the market retains some optimism around long term earnings stability, despite past EPS declines. This positive sentiment is also reflected in the generous P/E ratio of 72.96.

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 Zhejiang Xinan Chemical Industrial GroupLtd's earnings, revenue and cash flow.

What About Dividends?

It is important to consider the total shareholder return, as well as the share price return, for any given stock. 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. In the case of Zhejiang Xinan Chemical Industrial GroupLtd, it has a TSR of -44% 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

While the broader market lost about 17% in the twelve months, Zhejiang Xinan Chemical Industrial GroupLtd shareholders did even worse, losing 32% (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. On the bright side, long term shareholders have made money, with a gain of 4% per year over half a decade. It could be that the recent sell-off is an opportunity, so it may be worth checking the fundamental data for signs of a long term growth trend. 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. Even so, be aware that Zhejiang Xinan Chemical Industrial GroupLtd is showing 4 warning signs in our investment analysis , you should know about...

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