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 the harsh reality is that very many loss making companies burn through all their cash and go bankrupt.

Given this risk, we thought we'd take a look at whether Trellus Health (LON:TRLS) shareholders should be worried about its cash burn. In this report, we will consider the company's annual negative free cash flow, henceforth referring to it as the 'cash burn'. The first step is to compare its cash burn with its cash reserves, to give us its 'cash runway'.

Check out our latest analysis for Trellus Health

When Might Trellus Health Run Out Of Money?

A company's cash runway is the amount of time it would take to burn through its cash reserves at its current cash burn rate. When Trellus Health last reported its balance sheet in December 2021, it had zero debt and cash worth US$32m. In the last year, its cash burn was US$8.5m. So it had a cash runway of about 3.8 years from December 2021. A runway of this length affords the company the time and space it needs to develop the business. You can see how its cash balance has changed over time in the image below.

How Is Trellus Health's Cash Burn Changing Over Time?

Although Trellus Health had revenue of US$25k in the last twelve months, its operating revenue was only US$25k in that time period. Given how low that operating leverage is, we think it's too early to put much weight on the revenue growth, so we'll focus on how the cash burn is changing, instead. Its cash burn positively exploded in the last year, up 221%. With that kind of spending growth its cash runway will shorten quickly, as it simultaneously uses its cash while increasing the burn rate. 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.

How Hard Would It Be For Trellus Health To Raise More Cash For Growth?

Given its cash burn trajectory, Trellus Health shareholders may wish to consider how easily it could raise more cash, despite its solid cash runway. Issuing new shares, or taking on debt, are the most common ways for a listed company to raise more money for its business. 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.

Trellus Health has a market capitalisation of US$38m and burnt through US$8.5m last year, which is 23% of the company's 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 Trellus Health's Cash Burn A Worry?

On this analysis of Trellus Health's cash burn, we think its cash runway was reassuring, while its increasing cash burn has us a bit worried. Cash burning companies are always on the riskier side of things, but after considering all of the factors discussed in this short piece, we're not too worried about its rate of cash burn. Separately, we looked at different risks affecting the company and spotted 4 warning signs for Trellus Health (of which 1 is a bit unpleasant!) 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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.

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.