We can readily understand why investors are attracted to unprofitable companies. By way of example, Perpetua Resources (TSE:PPTA) has seen its share price rise 199% over the last year, delighting many shareholders. Having said that, unprofitable companies are risky because they could potentially burn through all their cash and become distressed.

In light of its strong share price run, we think now is a good time to investigate how risky Perpetua Resources' 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). First, we'll determine its cash runway by comparing its cash burn with its cash reserves.

View our latest analysis for Perpetua Resources

Does Perpetua Resources Have A Long Cash Runway?

A company's cash runway is calculated by dividing its cash hoard by its cash burn. In September 2024, Perpetua Resources had US$11m in cash, and was debt-free. Looking at the last year, the company burnt through US$19m. That means it had a cash runway of around 7 months as of September 2024. That's quite a short cash runway, indicating the company must either reduce its annual cash burn or replenish its cash. The image below shows how its cash balance has been changing over the last few years.

How Is Perpetua Resources' Cash Burn Changing Over Time?

Because Perpetua Resources 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. As it happens, the company's cash burn reduced by 17% over the last year, which suggests that management may be mindful of the risks of their depleting cash reserves. 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.

How Easily Can Perpetua Resources Raise Cash?

While Perpetua Resources is showing a solid reduction in its cash burn, it's still worth considering how easily it could raise more cash, even just to fuel faster growth. 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.

Perpetua Resources' cash burn of US$19m is about 3.1% of its US$591m market capitalisation. 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 Perpetua Resources' Cash Burn A Worry?

On this analysis of Perpetua Resources' cash burn, we think its cash burn relative to its market cap was reassuring, while its cash runway 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. Separately, we looked at different risks affecting the company and spotted 5 warning signs for Perpetua Resources (of which 3 shouldn't be ignored!) 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.