Even after rising 11% this past week, Tainergy Tech (TWSE:4934) shareholders are still down 59% over the past three years

Tainergy Tech Co., Ltd. (TWSE:4934) shareholders should be happy to see the share price up 13% in the last month. But over the last three years we've seen a quite serious decline. Tragically, the share price declined 59% in that time. Some might say the recent bounce is to be expected after such a bad drop. After all, could be that the fall was overdone.

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

View our latest analysis for Tainergy Tech

Given that Tainergy Tech 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. When a company doesn't make profits, we'd generally hope to see good revenue growth. As you can imagine, fast revenue growth, when maintained, often leads to fast profit growth.

Over the last three years, Tainergy Tech's revenue dropped 7.3% per year. That's not what investors generally want to see. With revenue in decline, and profit but a dream, we can understand why the share price has been declining at 17% per year. Of course, it's the future that will determine whether today's price is a good one. We'd be pretty wary of this one until it makes a profit, because we don't specialize in finding turnaround situations.

The graphic below depicts how earnings and revenue have changed over time (unveil the exact values by clicking on the image).

Take a more thorough look at Tainergy Tech's financial health with this free report on its balance sheet.

A Different Perspective

While the broader market gained around 27% in the last year, Tainergy Tech shareholders lost 47%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. Regrettably, last year's performance caps off a bad run, with the shareholders facing a total loss of 5% per year over five years. We realise that Baron Rothschild has said investors should "buy when there is blood on the streets", but we caution that investors should first be sure they are buying a high quality business. 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. Even so, be aware that Tainergy Tech is showing 2 warning signs in our investment analysis , you should know about...

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 Taiwanese 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.