There's no doubt that money can be made by owning shares of unprofitable businesses. For example, although Amazon.com made losses for many years after listing, if you had bought and held the shares since 1999, you would have made a fortune. But while the successes are well known, investors should not ignore the very many unprofitable companies that simply burn through all their cash and collapse.

So should Fuel Tech (NASDAQ:FTEK) shareholders be worried about its cash burn? For the purpose of this article, we'll define cash burn as the amount of cash the company is spending each year to fund its growth (also called its negative free cash flow). The first step is to compare its cash burn with its cash reserves, to give us its 'cash runway'.

See our latest analysis for Fuel Tech

When Might Fuel Tech Run Out Of Money?

A cash runway is defined as the length of time it would take a company to run out of money if it kept spending at its current rate of cash burn. As at September 2024, Fuel Tech had cash of US$20m and no debt. Importantly, its cash burn was US$2.0m over the trailing twelve months. That means it had a cash runway of very many years as of September 2024. Even though this is but one measure of the company's cash burn, the thought of such a long cash runway warms our bellies in a comforting way. You can see how its cash balance has changed over time in the image below.

How Well Is Fuel Tech Growing?

At first glance it's a bit worrying to see that Fuel Tech actually boosted its cash burn by 46%, year on year. Also concerning, operating revenue was actually down by 5.6% in that time. Taken together, we think these growth metrics are a little worrying. While the past is always worth studying, it is the future that matters most of all. So you might want to take a peek at how much the company is expected to grow in the next few years.

How Easily Can Fuel Tech Raise Cash?

Even though it seems like Fuel Tech is developing its business nicely, we still like to consider how easily it could raise more money to accelerate growth. Companies can raise capital through either debt or equity. Many companies end up issuing new shares to fund future growth. By looking at a company's cash burn relative to its market capitalisation, we gain insight on how much shareholders would be diluted if the company needed to raise enough cash to cover another year's cash burn.

Since it has a market capitalisation of US$30m, Fuel Tech's US$2.0m in cash burn equates to about 6.8% of its market value. That's a low proportion, so we figure the company would be able to raise more cash to fund growth, with a little dilution, or even to simply borrow some money.

How Risky Is Fuel Tech's Cash Burn Situation?

As you can probably tell by now, we're not too worried about Fuel Tech's cash burn. In particular, we think its cash runway stands out as evidence that the company is well on top of its spending. While its increasing cash burn wasn't great, the other factors mentioned in this article more than make up for weakness on that measure. Considering all the factors discussed in this article, we're not overly concerned about the company's cash burn, although we do think shareholders should keep an eye on how it develops. Readers need to have a sound understanding of business risks before investing in a stock, and we've spotted 1 warning sign for Fuel Tech that potential shareholders should take into account before putting money into a stock.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of companies with significant insider holdings, and this list of stocks growth stocks (according to analyst forecasts)

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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.