Just because a business does not make any money, does not mean that the stock will go down. 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.

So, the natural question for Marinus Pharmaceuticals (NASDAQ:MRNS) shareholders is whether they should be concerned by its rate of 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.

See our latest analysis for Marinus Pharmaceuticals

Does Marinus Pharmaceuticals Have A Long Cash Runway?

A company's cash runway is calculated by dividing its cash hoard by its cash burn. When Marinus Pharmaceuticals last reported its balance sheet in March 2021, it had zero debt and cash worth US$123m. In the last year, its cash burn was US$63m. So it had a cash runway of approximately 23 months from March 2021. Importantly, analysts think that Marinus Pharmaceuticals will reach cashflow breakeven in 4 years. Essentially, that means the company will either reduce its cash burn, or else require more cash. Depicted below, you can see how its cash holdings have changed over time.

How Is Marinus Pharmaceuticals' Cash Burn Changing Over Time?

In our view, Marinus Pharmaceuticals doesn't yet produce significant amounts of operating revenue, since it reported just US$3.5m in the last twelve months. As a result, we think it's a bit early to focus on the revenue growth, so we'll limit ourselves to looking at how the cash burn is changing over time. Over the last year its cash burn actually increased by 24%, which suggests that management are increasing investment in future growth, but not too quickly. That's not necessarily a bad thing, but investors should be mindful of the fact that will shorten the cash runway. 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.

Can Marinus Pharmaceuticals Raise More Cash Easily?

While Marinus Pharmaceuticals does have a solid cash runway, its cash burn trajectory may have some shareholders thinking ahead to when the company may need to raise more cash. 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.

Marinus Pharmaceuticals has a market capitalisation of US$687m and burnt through US$63m last year, which is 9.2% of the company's market value. Given that is a rather small percentage, it would probably be really easy for the company to fund another year's growth by issuing some new shares to investors, or even by taking out a loan.

How Risky Is Marinus Pharmaceuticals' Cash Burn Situation?

Even though its increasing cash burn makes us a little nervous, we are compelled to mention that we thought Marinus Pharmaceuticals' cash burn relative to its market cap was relatively promising. One real positive is that analysts are forecasting that the company will reach breakeven. 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. Readers need to have a sound understanding of business risks before investing in a stock, and we've spotted 4 warning signs for Marinus Pharmaceuticals that potential shareholders should take into account before putting money into a stock.

Of course Marinus Pharmaceuticals 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 that insiders are buying.

This article by Simply Wall St is general in nature. 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.

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