The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you put in. But when you pick a company that is really flourishing, you can make more than 100%. To wit, the Shanghai Film Co., Ltd. (SHSE:601595) share price has flown 174% in the last three years. That sort of return is as solid as granite. On top of that, the share price is up 47% in about a quarter. But this could be related to the strong market, which is up 21% in the last three months.

Since the stock has added CN¥838m to its market cap in the past week alone, let's see if underlying performance has been driving long-term returns.

While the efficient markets hypothesis continues to be taught by some, it has been proven that markets are over-reactive dynamic systems, and investors are not always rational. 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 three years of share price growth, Shanghai Film moved from a loss to profitability. That kind of transition can be an inflection point that justifies a strong share price gain, just as we have seen here.

The image below shows how EPS has tracked over time (if you click on the image you can see greater detail).

It is of course excellent to see how Shanghai Film has grown profits over the years, but the future is more important for shareholders. If you are thinking of buying or selling Shanghai Film stock, you should check out this FREE detailed report on its balance sheet.

A Different Perspective

It's nice to see that Shanghai Film shareholders have received a total shareholder return of 51% over the last year. And that does include the dividend. That gain is better than the annual TSR over five years, which is 18%. Therefore it seems like sentiment around the company has been positive lately. Someone with an optimistic perspective could view the recent improvement in TSR as indicating that the business itself is getting better with time. 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. Take risks, for example - Shanghai Film has 1 warning sign we think you should be aware of.

Of course Shanghai Film may not be the best stock to buy. So you may wish to see this free collection of growth stocks.

Please note, the market returns quoted in this article reflect the market weighted average returns of stocks that currently trade on Chinese exchanges.

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