There's no doubt that money can be made by owning shares of unprofitable businesses. By way of example, Aurora Innovation (NASDAQ:AUR) has seen its share price rise 168% over the last year, delighting many shareholders. 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.

In light of its strong share price run, we think now is a good time to investigate how risky Aurora Innovation's cash burn is. 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 Aurora Innovation

How Long Is Aurora Innovation's Cash Runway?

A company's cash runway is calculated by dividing its cash hoard by its cash burn. In September 2024, Aurora Innovation had US$1.2b in cash, and was debt-free. In the last year, its cash burn was US$632m. So it had a cash runway of about 2.0 years from September 2024. While that cash runway isn't too concerning, sensible holders would be peering into the distance, and considering what happens if the company runs out of cash. Importantly, if we extrapolate recent cash burn trends, the cash runway would be noticeably longer. Depicted below, you can see how its cash holdings have changed over time.

How Is Aurora Innovation's Cash Burn Changing Over Time?

Aurora Innovation didn't record any revenue over the last year, indicating that it's an early stage company still developing its business. Nonetheless, we can still examine its cash burn trajectory as part of our assessment of its cash burn situation. It seems likely that the business is content with its current spending, as the cash burn rate stayed steady over the last twelve months. Clearly, however, the crucial factor is whether the company will grow its business going forward. For that reason, it makes a lot of sense to take a look at our analyst forecasts for the company.

Can Aurora Innovation Raise More Cash Easily?

While its cash burn is only increasing slightly, Aurora Innovation shareholders should still consider the potential need for further cash, down the track. Generally speaking, a listed business can raise new cash through issuing shares or taking on debt. 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 comparing a company's annual cash burn to its total market capitalisation, we can estimate roughly how many shares it would have to issue in order to run the company for another year (at the same burn rate).

Aurora Innovation has a market capitalisation of US$11b and burnt through US$632m last year, which is 5.7% of the company's 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.

Is Aurora Innovation's Cash Burn A Worry?

On this analysis of Aurora Innovation's cash burn, we think its cash burn relative to its market cap was reassuring, while its increasing cash burn has us a bit worried. 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, Aurora Innovation has 4 warning signs (and 1 which doesn't sit too well with us) we think you should know about.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of interesting companies, 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.