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.

So should Merus (NASDAQ:MRUS) shareholders 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). First, we'll determine its cash runway by comparing its cash burn with its cash reserves.

When Might Merus Run Out Of Money?

A cash runway is defined as the length of time it would take a company to run out of money if it kept spending at its current rate of cash burn. As at September 2024, Merus had cash of US$632m and no debt. Importantly, its cash burn was US$157m over the trailing twelve months. Therefore, from September 2024 it had 4.0 years of cash runway. Importantly, though, analysts think that Merus will reach cashflow breakeven 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 Merus Growing?

At first glance it's a bit worrying to see that Merus actually boosted its cash burn by 10%, year on year. And we must say we find it concerning that operating revenue dropped 21% over the same period. Taken together, we think these growth metrics are a little worrying. While the past is always worth studying, it is the future that matters most of all. For that reason, it makes a lot of sense to take a look at our analyst forecasts for the company.

Can Merus Raise More Cash Easily?

Even though it seems like Merus is developing its business nicely, we still like to consider how easily it could raise more money to accelerate growth. Generally speaking, a listed business can raise new cash through issuing shares or taking on debt. Commonly, a business will sell new shares in itself to raise cash and drive growth. We can compare a company's cash burn to its market capitalisation to get a sense for how many new shares a company would have to issue to fund one year's operations.

Merus has a market capitalisation of US$2.9b and burnt through US$157m last year, which is 5.4% of the company's market value. 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.

So, Should We Worry About Merus' Cash Burn?

It may already be apparent to you that we're relatively comfortable with the way Merus is burning through its cash. For example, we think its cash runway suggests that the company is on a good path. Although its falling revenue does give us reason for pause, the other metrics we discussed in this article form a positive picture overall. One real positive is that analysts are forecasting that the company will reach breakeven. Based on the factors mentioned in this article, we think its cash burn situation warrants some attention from shareholders, but we don't think they should be worried. Its important for readers to be cognizant of the risks that can affect the company's operations, and we've picked out 2 warning signs for Merus that investors should know when investing in the stock.

Of course Merus 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.