There's no doubt that money can be made by owning shares of unprofitable businesses. For example, although software-as-a-service business Salesforce.com lost money for years while it grew recurring revenue, if you held shares since 2005, you'd have done very well indeed. But while history lauds those rare successes, those that fail are often forgotten; who remembers Pets.com?
So, the natural question for Lightbridge (NASDAQ:LTBR) shareholders is whether they should be concerned by its rate of cash burn. In this report, we will consider the company's annual negative free cash flow, henceforth referring to it as the 'cash burn'. The first step is to compare its cash burn with its cash reserves, to give us its 'cash runway'.
How Long Is Lightbridge's 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. As at June 2026, Lightbridge had cash of US$237m and no debt. Importantly, its cash burn was US$17m over the trailing twelve months. So it had a very long cash runway of many years from June 2026. 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. The image below shows how its cash balance has been changing over the last few years.
See our latest analysis for Lightbridge
How Is Lightbridge's Cash Burn Changing Over Time?
Lightbridge didn't record any revenue over the last year, indicating that it's an early stage company still developing its business. So while we can't look to sales to understand growth, we can look at how the cash burn is changing to understand how expenditure is trending over time. Over the last year its cash burn actually increased by 49%, which suggests that management are increasing investment in future growth, but not too quickly. However, the company's true cash runway will therefore be shorter than suggested above, if spending continues to increase. Lightbridge makes us a little nervous due to its lack of substantial operating revenue. So we'd generally prefer stocks from this list of stocks that have analysts forecasting growth.
Can Lightbridge Raise More Cash Easily?
Given its cash burn trajectory, Lightbridge shareholders may wish to consider how easily it could raise more cash, despite its solid cash runway. 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.
Lightbridge has a market capitalisation of US$202m and burnt through US$17m last year, which is 8.4% 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.
Is Lightbridge's Cash Burn A Worry?
As you can probably tell by now, we're not too worried about Lightbridge's cash burn. In particular, we think its cash runway stands out as evidence that the company is well on top of its spending. While its increasing cash burn wasn't great, the other factors mentioned in this article more than make up for weakness on that measure. After taking into account the various metrics mentioned in this report, we're pretty comfortable with how the company is spending its cash, as it seems on track to meet its needs over the medium term. On another note, Lightbridge has 4 warning signs (and 2 which make us uncomfortable) we think you should know about.
Of course, you might find a fantastic investment by looking elsewhere. So take a peek at this free list of companies with significant insider holdings, and this list of stocks growth stocks (according to analyst forecasts)
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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.