Even when a business is losing money, it's possible for shareholders to make money if they buy a good business at the right price. 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 history lauds those rare successes, those that fail are often forgotten; who remembers Pets.com?

Given this risk, we thought we'd take a look at whether Aurora Innovation (NASDAQ:AUR) shareholders should be worried about its cash burn. In this article, we define cash burn as its annual (negative) free cash flow, which is the amount of money a company spends each year to fund its growth. The first step is to compare its cash burn with its cash reserves, to give us its 'cash runway'.

View our latest analysis for Aurora Innovation

When Might Aurora Innovation Run Out Of Money?

A company's cash runway is calculated by dividing its cash hoard by its cash burn. In September 2023, Aurora Innovation had US$1.5b in cash, and was debt-free. Looking at the last year, the company burnt through US$620m. That means it had a cash runway of about 2.4 years as of September 2023. Arguably, that's a prudent and sensible length of runway to have. The image below shows how its cash balance has been changing over the last few years.

How Well Is Aurora Innovation Growing?

Some investors might find it troubling that Aurora Innovation is actually increasing its cash burn, which is up 15% in the last year. The fact that its operating revenue tanked 98% in the last year is even more worrying. Considering these two factors together makes us nervous about the direction the company seems to be heading. 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 Aurora Innovation Raise More Cash Easily?

Even though it seems like Aurora Innovation 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. Commonly, a business will sell new shares in itself to raise cash and drive 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$2.7b, Aurora Innovation's US$620m in cash burn equates to about 23% of its market value. That's fairly notable cash burn, so if the company had to sell shares to cover the cost of another year's operations, shareholders would suffer some costly dilution.

Is Aurora Innovation's Cash Burn A Worry?

On this analysis of Aurora Innovation's cash burn, we think its cash runway was reassuring, while its falling revenue has us a bit worried. We don't think its cash burn is particularly problematic, but after considering the range of factors in this article, we do think shareholders should be monitoring how it changes over time. An in-depth examination of risks revealed 4 warning signs for Aurora Innovation that readers should think about before committing capital to this stock.

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.