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, biotech and mining exploration companies often lose money for years before finding success with a new treatment or mineral discovery. 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.

Given this risk, we thought we'd take a look at whether HeartFlow (NASDAQ:HTFL) shareholders should be worried about its cash burn. 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). We'll start by comparing its cash burn with its cash reserves in order to calculate its cash runway.

Does HeartFlow Have A Long Cash Runway?

A company's cash runway is calculated by dividing its cash hoard by its cash burn. In March 2026, HeartFlow had US$158m in cash, and was debt-free. Looking at the last year, the company burnt through US$77m. Therefore, from March 2026 it had 2.1 years of cash runway. Notably, analysts forecast that HeartFlow will break even (at a free cash flow level) in about 2 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. You can see how its cash balance has changed over time in the image below.

How Well Is HeartFlow Growing?

At first glance it's a bit worrying to see that HeartFlow actually boosted its cash burn by 20%, year on year. The silver lining is that revenue was up 41%, showing the business is growing at the top line. Considering the factors above, the company doesn’t fare badly when it comes to assessing how it is changing over time. While the past is always worth studying, it is the future that matters most of all. So you might want to take a peek at how much the company is expected to grow in the next few years.

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

Even though it seems like HeartFlow is developing its business nicely, we still like to consider how easily it could raise more money to accelerate growth. Issuing new shares, or taking on debt, are the most common ways for a listed company to raise more money for its business. Many companies end up issuing new shares to fund future 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.

HeartFlow has a market capitalisation of US$2.8b and burnt through US$77m last year, which is 2.8% of the company's market value. That means it could easily issue a few shares to fund more growth, and might well be in a position to borrow cheaply.

So, Should We Worry About HeartFlow's Cash Burn?

As you can probably tell by now, we're not too worried about HeartFlow's cash burn. For example, we think its cash burn relative to its market cap suggests that the company is on a good path. Although its increasing cash burn does give us reason for pause, the other metrics we discussed in this article form a positive picture overall. Shareholders can take heart from the fact that analysts are forecasting it will reach breakeven. Looking at all the measures in this article, together, we're not worried about its rate of cash burn; the company seems well on top of its medium-term spending needs.

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)

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.