Grenergy Renovables' (BME:GRE) Solid Profits Have Weak Fundamentals

Despite posting some strong earnings, the market for Grenergy Renovables, S.A.'s (BME:GRE) stock hasn't moved much. We did some digging, and we found some concerning factors in the details.

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Zooming In On Grenergy Renovables' Earnings

Many investors haven't heard of the accrual ratio from cashflow, but it is actually a useful measure of how well a company's profit is backed up by free cash flow (FCF) during a given period. The accrual ratio subtracts the FCF from the profit for a given period, and divides the result by the average operating assets of the company over that time. This ratio tells us how much of a company's profit is not backed by free cashflow.

Therefore, it's actually considered a good thing when a company has a negative accrual ratio, but a bad thing if its accrual ratio is positive. While having an accrual ratio above zero is of little concern, we do think it's worth noting when a company has a relatively high accrual ratio. To quote a 2014 paper by Lewellen and Resutek, "firms with higher accruals tend to be less profitable in the future".

For the year to September 2025, Grenergy Renovables had an accrual ratio of 0.32. We can therefore deduce that its free cash flow fell well short of covering its statutory profit, suggesting we might want to think twice before putting a lot of weight on the latter. Over the last year it actually had negative free cash flow of €346m, in contrast to the aforementioned profit of €98.9m. We also note that Grenergy Renovables' free cash flow was actually negative last year as well, so we could understand if shareholders were bothered by its outflow of €346m.

That might leave you wondering what analysts are forecasting in terms of future profitability. Luckily, you can click here to see an interactive graph depicting future profitability, based on their estimates.

Our Take On Grenergy Renovables' Profit Performance

As we have made quite clear, we're a bit worried that Grenergy Renovables didn't back up the last year's profit with free cashflow. As a result, we think it may well be the case that Grenergy Renovables' underlying earnings power is lower than its statutory profit. But on the bright side, its earnings per share have grown at an extremely impressive rate over the last three years. Of course, we've only just scratched the surface when it comes to analysing its earnings; one could also consider margins, forecast growth, and return on investment, among other factors. So if you'd like to dive deeper into this stock, it's crucial to consider any risks it's facing. To that end, you should learn about the 3 warning signs we've spotted with Grenergy Renovables (including 1 which is a bit concerning).

This note has only looked at a single factor that sheds light on the nature of Grenergy Renovables' profit. But there are plenty of other ways to inform your opinion of a company. Some people consider a high return on equity to be a good sign of a quality business. While it might take a little research on your behalf, you may find this free collection of companies boasting high return on equity, or this list of stocks with significant insider holdings to be useful.

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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.