There's no doubt that money can be made by owning shares of unprofitable businesses. For example, biotech and mining exploration companies often lose money for years before finding success with a new treatment or mineral discovery. 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 Glaukos (NYSE:GKOS) 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. We'll start by comparing its cash burn with its cash reserves in order to calculate its cash runway.

Check out our latest analysis for Glaukos

Does Glaukos Have A Long Cash Runway?

You can calculate a company's cash runway by dividing the amount of cash it has by the rate at which it is spending that cash. In December 2024, Glaukos had US$319m in cash, and was debt-free. Importantly, its cash burn was US$81m over the trailing twelve months. Therefore, from December 2024 it had 3.9 years of cash runway. Notably, however, analysts think that Glaukos will break even (at a free cash flow level) before then. If that happens, then the length of its cash runway, today, would become a moot point. Depicted below, you can see how its cash holdings have changed over time.

How Well Is Glaukos Growing?

At first glance it's a bit worrying to see that Glaukos actually boosted its cash burn by 4.2%, year on year. The silver lining is that revenue was up 22%, 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. 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 Glaukos Raise Cash?

There's no doubt Glaukos seems to be in a fairly good position, when it comes to managing its cash burn, but even if it's only hypothetical, it's always worth asking how easily it could raise more money to fund 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 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).

Glaukos has a market capitalisation of US$7.1b and burnt through US$81m last year, which is 1.1% of the company's market value. So it could almost certainly just borrow a little to fund another year's growth, or else easily raise the cash by issuing a few shares.

Is Glaukos' Cash Burn A Worry?

It may already be apparent to you that we're relatively comfortable with the way Glaukos is burning through its cash. In particular, we think its cash runway stands out as evidence that the company is well on top of its spending. Although its increasing cash burn does give us reason for pause, the other metrics we discussed in this article form a positive picture overall. There's no doubt that shareholders can take a lot of heart from the fact that analysts are forecasting it will reach breakeven before too long. After considering a range of factors in this article, we're pretty relaxed about its cash burn, since the company seems to be in a good position to continue to fund its growth. For us, it's always important to consider risks around cash burn rates. But investors should look at a whole range of factors when researching a new stock. For example, it could be interesting to see how much the Glaukos CEO receives in total remuneration.

Of course Glaukos may not be the best stock to buy. So you may wish to see this free collection of companies boasting high return on equity, or this list of stocks with high insider ownership.

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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.