Strong week for Invinity Energy Systems (LON:IES) shareholders doesn't alleviate pain of five-year loss

It is a pleasure to report that the Invinity Energy Systems plc (LON:IES) is up 34% in the last quarter. But spare a thought for the long term holders, who have held the stock as it bled value over the last five years. Indeed, the share price is down a whopping 83% in that time. So we don't gain too much confidence from the recent recovery. The important question is if the business itself justifies a higher share price in the long term. While a drop like that is definitely a body blow, money isn't as important as health and happiness.

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.

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Invinity Energy Systems isn't currently profitable, so most analysts would look to revenue growth to get an idea of how fast the underlying business is growing. Generally speaking, companies without profits are expected to grow revenue every year, and at a good clip. Some companies are willing to postpone profitability to grow revenue faster, but in that case one would hope for good top-line growth to make up for the lack of earnings.

In the last half decade, Invinity Energy Systems saw its revenue increase by 52% per year. That's better than most loss-making companies. So on the face of it we're really surprised to see the share price has averaged a fall of 13% each year, in the same time period. It could be that the stock was over-hyped before. While there might be an opportunity here, you'd want to take a close look at the balance sheet strength.

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

If you are thinking of buying or selling Invinity Energy Systems stock, you should check out this FREE detailed report on its balance sheet.

A Different Perspective

While the broader market gained around 7.5% in the last year, Invinity Energy Systems shareholders lost 28%. However, keep in mind that even the best stocks will sometimes underperform the market over a twelve month period. 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. Case in point: We've spotted 2 warning signs for Invinity Energy Systems you should be aware of.

Of course Invinity Energy Systems may not be the best stock to buy. So you may wish to see this free collection of growth stocks.

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