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 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 ADTRAN (NASDAQ:ADTN) 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'. Let's start with an examination of the business' cash, relative to its cash burn.

Check out our latest analysis for ADTRAN

How Long Is ADTRAN's Cash Runway?

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 ADTRAN last reported its balance sheet in March 2022, it had zero debt and cash worth US$54m. Importantly, its cash burn was US$9.2m over the trailing twelve months. So it had a cash runway of about 5.9 years from March 2022. Even though this is but one measure of the company's cash burn, the thought of such a long cash runway warms our bellies in a comforting way. You can see how its cash balance has changed over time in the image below.

How Well Is ADTRAN Growing?

It was fairly positive to see that ADTRAN reduced its cash burn by 20% during the last year. And operating revenue was up by 14% too. On balance, we'd say the company is improving over time. 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.

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

We are certainly impressed with the progress ADTRAN has made over the last year, but it is also worth considering how costly it would be if it wanted to raise more cash to fund faster growth. Generally speaking, a listed business can raise new cash through issuing shares or taking on debt. 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).

Since it has a market capitalisation of US$904m, ADTRAN's US$9.2m in cash burn equates to about 1.0% of its 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 ADTRAN's Cash Burn A Worry?

It may already be apparent to you that we're relatively comfortable with the way ADTRAN 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. Its weak point is its cash burn reduction, but even that wasn't too bad! 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. Readers need to have a sound understanding of business risks before investing in a stock, and we've spotted 1 warning sign for ADTRAN that potential shareholders should take into account before putting money into a stock.

Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of companies insiders are buying, and this list of stocks growth stocks (according to analyst forecasts)

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.