There's no doubt that money can be made by owning shares of unprofitable businesses. 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 Applied Molecular Transport (NASDAQ:AMTI) 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). The first step is to compare its cash burn with its cash reserves, to give us its 'cash runway'.

View our latest analysis for Applied Molecular Transport

How Long Is Applied Molecular Transport'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 2022, Applied Molecular Transport had cash of US$96m and no debt. In the last year, its cash burn was US$104m. Therefore, from June 2022 it had roughly 11 months of cash runway. That's quite a short cash runway, indicating the company must either reduce its annual cash burn or replenish its cash. Depicted below, you can see how its cash holdings have changed over time.

How Is Applied Molecular Transport's Cash Burn Changing Over Time?

Because Applied Molecular Transport isn't currently generating revenue, we consider it an early-stage 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 36%, 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.

How Hard Would It Be For Applied Molecular Transport To Raise More Cash For Growth?

Since its cash burn is moving in the wrong direction, Applied Molecular Transport shareholders may wish to think ahead to when the company may need to raise more cash. 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. We can compare a company's cash burn to its market capitalisation to get a sense for how many new shares a company would have to issue to fund one year's operations.