Generally speaking the aim of active stock picking is to find companies that provide returns that are superior to the market average. And while active stock picking involves risks (and requires diversification) it can also provide excess returns. For example, the North Copper Co., Ltd. (SZSE:000737) share price is up 72% in the last 5 years, clearly besting the market return of around 21% (ignoring dividends).

While this past week has detracted from the company's five-year return, let's look at the recent trends of the underlying business and see if the gains have been in alignment.

See our latest analysis for North Copper

To quote Buffett, 'Ships will sail around the world but the Flat Earth Society will flourish. There will continue to be wide discrepancies between price and value in the marketplace...' 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).

Over half a decade, North Copper managed to grow its earnings per share at 72% a year. This EPS growth is higher than the 12% average annual increase in the share price. Therefore, it seems the market has become relatively pessimistic about the company.

The company's earnings per share (over time) is depicted in the image below (click to see the exact numbers).

It might be well worthwhile taking a look at our free report on North Copper's earnings, revenue and cash flow.

A Different Perspective

Although it hurts that North Copper returned a loss of 12% in the last twelve months, the broader market was actually worse, returning a loss of 17%. Longer term investors wouldn't be so upset, since they would have made 12%, each year, over five years. It could be that the business is just facing some short term problems, but shareholders should keep a close eye on the fundamentals. 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. Consider risks, for instance. Every company has them, and we've spotted 1 warning sign for North Copper you should know about.

But note: North Copper may not be the best stock to buy. So take a peek at this free list of interesting companies with past earnings growth (and further growth forecast).

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.