It might seem bad, but the worst that can happen when you buy a stock (without leverage) is that its share price goes to zero. But if you buy shares in a really great company, you can more than double your money. To wit, the J.S. Corrugating Machinery Co., Ltd. (SZSE:000821) share price has flown 119% in the last three years. How nice for those who held the stock! Unfortunately, though, the stock has dropped 7.1% over a week.

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

Check out our latest analysis for J.S. Corrugating Machinery

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 three years of share price growth, J.S. Corrugating Machinery moved from a loss to profitability. Given the importance of this milestone, it's not overly surprising that the share price has increased strongly.

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

We're pleased to report that the CEO is remunerated more modestly than most CEOs at similarly capitalized companies. It's always worth keeping an eye on CEO pay, but a more important question is whether the company will grow earnings throughout the years. This free interactive report on J.S. Corrugating Machinery's earnings, revenue and cash flow is a great place to start, if you want to investigate the stock further.

A Different Perspective

While the broader market lost about 3.3% in the twelve months, J.S. Corrugating Machinery shareholders did even worse, losing 22%. 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 13%, 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. Is J.S. Corrugating Machinery cheap compared to other companies? These 3 valuation measures might help you decide.

If you would prefer to check out another company -- one with potentially superior financials -- then do not miss this free list of companies that have proven they can grow earnings.

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.