Just because a business does not make any money, does not mean that the stock will go down. Indeed, 4DS Memory (ASX:4DS) stock is up 190% in the last year, providing strong gains for shareholders. 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.

In light of its strong share price run, we think now is a good time to investigate how risky 4DS Memory's cash burn is. In this report, we will consider the company's annual negative free cash flow, henceforth referring to it as the 'cash burn'. First, we'll determine its cash runway by comparing its cash burn with its cash reserves.

View our latest analysis for 4DS Memory

How Long Is 4DS Memory's Cash Runway?

A company's cash runway is calculated by dividing its cash hoard by its cash burn. As at December 2023, 4DS Memory had cash of AU$10m and no debt. In the last year, its cash burn was AU$4.5m. Therefore, from December 2023 it had 2.3 years of cash runway. Arguably, that's a prudent and sensible length of runway to have. The image below shows how its cash balance has been changing over the last few years.

How Is 4DS Memory's Cash Burn Changing Over Time?

While 4DS Memory did record statutory revenue of AU$7.3k over the last year, it didn't have any revenue from operations. That means we consider it a pre-revenue business, and we will focus our growth analysis on cash burn, for now. With cash burn dropping by 9.2% it seems management feel the company is spending enough to advance its business plans at an appropriate pace. 4DS Memory 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 4DS Memory Raise More Cash Easily?

While 4DS Memory is showing a solid reduction in its cash burn, it's still worth considering how easily it could raise more cash, even just to fuel faster growth. Companies can raise capital through either debt or equity. Commonly, a business will sell new shares in itself to raise cash and drive 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).

4DS Memory's cash burn of AU$4.5m is about 2.9% of its AU$153m market capitalisation. That means it could easily issue a few shares to fund more growth, and might well be in a position to borrow cheaply.