For many, the main point of investing is to generate higher returns than the overall market. But even the best stock picker will only win with some selections. So we wouldn't blame long term Shenzhen Sunrise New Energy Co., Ltd. (SZSE:002256) shareholders for doubting their decision to hold, with the stock down 48% over a half decade. We also note that the stock has performed poorly over the last year, with the share price down 29%. The falls have accelerated recently, with the share price down 31% in the last three months.

After losing 13% this past week, it's worth investigating the company's fundamentals to see what we can infer from past performance.

Given that Shenzhen Sunrise New Energy didn't make a profit in the last twelve months, we'll focus on revenue growth to form a quick view of its business development. Generally speaking, companies without profits are expected to grow revenue every year, and at a good clip. That's because it's hard to be confident a company will be sustainable if revenue growth is negligible, and it never makes a profit.

In the last five years Shenzhen Sunrise New Energy saw its revenue shrink by 10.0% per year. That's definitely a weaker result than most pre-profit companies report. On the face of it we'd posit the share price fall of 8% compound, over five years is well justified by the fundamental deterioration. We doubt many shareholders are delighted with this share price performance. It is possible for businesses to bounce back but as Buffett says, 'turnarounds seldom turn'.

The image below shows how earnings and revenue have tracked over time (if you click on the image you can see greater detail).

You can see how its balance sheet has strengthened (or weakened) over time in this free interactive graphic.

A Different Perspective

While the broader market lost about 12% in the twelve months, Shenzhen Sunrise New Energy shareholders did even worse, losing 29%. 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. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 8% per year over five years. Generally speaking long term share price weakness can be a bad sign, though contrarian investors might want to research the stock in hope of a turnaround. 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. To that end, you should learn about the 2 warning signs we've spotted with Shenzhen Sunrise New Energy (including 1 which shouldn't be ignored) .

If you are like me, then you will not want to miss this free list of undervalued small caps that insiders are buying.

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.