Nan Hai (HKG:680) shareholders are up 11% this past week, but still in the red over the last five years

Long term investing works well, but it doesn't always work for each individual stock. It hits us in the gut when we see fellow investors suffer a loss. For example, we sympathize with anyone who was caught holding Nan Hai Corporation Limited (HKG:680) during the five years that saw its share price drop a whopping 84%. We really hope anyone holding through that price crash has a diversified portfolio. Even when you lose money, you don't have to lose the lesson.

Although the past week has been more reassuring for shareholders, they're still in the red over the last five years, so let's see if the underlying business has been responsible for the decline.

See our latest analysis for Nan Hai

Nan Hai wasn't profitable in the last twelve months, it is unlikely we'll see a strong correlation between its share price and its earnings per share (EPS). Arguably revenue is our next best option. When a company doesn't make profits, we'd generally expect to see good revenue growth. As you can imagine, fast revenue growth, when maintained, often leads to fast profit growth.

In the last five years Nan Hai saw its revenue shrink by 2.6% per year. While far from catastrophic that is not good. If a business loses money, you want it to grow, so no surprises that the share price has dropped 13% each year in that time. It takes a certain kind of mental fortitude (or recklessness) to buy shares in a company that loses money and doesn't grow revenue. That is not really what the successful investors we know aim for.

The company's revenue and earnings (over time) are depicted in the image below (click to see the exact numbers).

It's probably worth noting that the CEO is paid less than the median at similar sized companies. But while CEO remuneration is always worth checking, the really important question is whether the company can grow earnings going forward. Before buying or selling a stock, we always recommend a close examination of historic growth trends, available here..

A Different Perspective

While the broader market lost about 11% in the twelve months, Nan Hai shareholders did even worse, losing 13%. 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. However, the loss over the last year isn't as bad as the 13% per annum loss investors have suffered over the last half decade. We'd need to see some sustained improvements in the key metrics before we could muster much enthusiasm. 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. Consider risks, for instance. Every company has them, and we've spotted 2 warning signs for Nan Hai you should know about.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of companies we expect will grow earnings.

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