Just because a business does not make any money, does not mean that the stock will go down. 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. Nonetheless, only a fool would ignore the risk that a loss making company burns through its cash too quickly.

So should Bannerman Energy (ASX:BMN) shareholders be worried about its cash burn? For the purposes of this article, cash burn is the annual rate at which an unprofitable company spends cash to fund its growth; its negative free cash flow. Let's start with an examination of the business' cash, relative to its cash burn.

When Might Bannerman Energy 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. When Bannerman Energy last reported its December 2024 balance sheet in March 2025, it had zero debt and cash worth AU$81m. Importantly, its cash burn was AU$34m over the trailing twelve months. So it had a cash runway of about 2.4 years from December 2024. Importantly, analysts think that Bannerman Energy will reach cashflow breakeven in 3 years. That means it doesn't have a great deal of breathing room, but it shouldn't really need more cash, considering that cash burn should be continually reducing. The image below shows how its cash balance has been changing over the last few years.

View our latest analysis for Bannerman Energy

How Is Bannerman Energy's Cash Burn Changing Over Time?

Because Bannerman Energy isn't currently generating revenue, we consider it an early-stage business. Nonetheless, we can still examine its cash burn trajectory as part of our assessment of its cash burn situation. In fact, it ramped its spending strongly over the last year, increasing cash burn by 186%. It's fair to say that sort of rate of increase cannot be maintained for very long, without putting pressure on the balance sheet. Clearly, however, the crucial factor is whether the company will grow its business going forward. So you might want to take a peek at how much the company is expected to grow in the next few years.

Can Bannerman Energy Raise More Cash Easily?

Given its cash burn trajectory, Bannerman Energy shareholders may wish to consider how easily it could raise more cash, despite its solid cash runway. Companies can raise capital through either debt or equity. One of the main advantages held by publicly listed companies is that they can sell shares to investors to raise cash and fund 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 AU$435m, Bannerman Energy's AU$34m in cash burn equates to about 7.9% of its market value. Given that is a rather small percentage, it would probably be really easy for the company to fund another year's growth by issuing some new shares to investors, or even by taking out a loan.

So, Should We Worry About Bannerman Energy's Cash Burn?

On this analysis of Bannerman Energy's cash burn, we think its cash runway was reassuring, while its increasing cash burn has us a bit worried. Shareholders can take heart from the fact that analysts are forecasting it will reach breakeven. 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. On another note, Bannerman Energy has 3 warning signs (and 2 which make us uncomfortable) we think you should know about.

If you would prefer to check out another company with better fundamentals, then do not miss this free list of interesting companies, that have HIGH return on equity and low debt or this list of stocks which are all forecast to grow.

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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.