Just because a business does not make any money, does not mean that the stock will go down. 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. Nonetheless, only a fool would ignore the risk that a loss making company burns through its cash too quickly.

Given this risk, we thought we'd take a look at whether Idera Pharmaceuticals (NASDAQ:IDRA) shareholders should 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.

Check out our latest analysis for Idera Pharmaceuticals

When Might Idera Pharmaceuticals Run Out Of Money?

A company's cash runway is calculated by dividing its cash hoard by its cash burn. As at March 2021, Idera Pharmaceuticals had cash of US$45m and such minimal debt that we can ignore it for the purposes of this analysis. Looking at the last year, the company burnt through US$33m. So it had a cash runway of approximately 16 months from March 2021. That's not too bad, but it's fair to say the end of the cash runway is in sight, unless cash burn reduces drastically. Depicted below, you can see how its cash holdings have changed over time.

How Is Idera Pharmaceuticals' Cash Burn Changing Over Time?

Idera Pharmaceuticals 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. While it hardly paints a picture of imminent growth, the fact that it has reduced its cash burn by 22% over the last year suggests some degree of prudence. 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 Easily Can Idera Pharmaceuticals Raise Cash?

While Idera Pharmaceuticals 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. 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.