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. Having said that, unprofitable companies are risky because they could potentially burn through all their cash and become distressed.

Given this risk, we thought we'd take a look at whether Entera Bio (NASDAQ:ENTX) shareholders should be worried about its cash burn. For the purposes of this article, cash burn is the annual rate at which an unprofitable company spends cash to fund its growth; its negative free cash flow. The first step is to compare its cash burn with its cash reserves, to give us its 'cash runway'.

Check out our latest analysis for Entera Bio

Does Entera Bio Have A Long Cash Runway?

A cash runway is defined as the length of time it would take a company to run out of money if it kept spending at its current rate of cash burn. When Entera Bio last reported its balance sheet in September 2020, it had zero debt and cash worth US$7.1m. Importantly, its cash burn was US$12m over the trailing twelve months. So it had a cash runway of approximately 7 months from September 2020. To be frank, this kind of short runway puts us on edge, as it indicates the company must reduce its cash burn significantly, or else raise cash imminently. Depicted below, you can see how its cash holdings have changed over time.

How Is Entera Bio's Cash Burn Changing Over Time?

In our view, Entera Bio doesn't yet produce significant amounts of operating revenue, since it reported just US$246k in the last twelve months. As a result, we think it's a bit early to focus on the revenue growth, so we'll limit ourselves to looking at how the cash burn is changing over time. During the last twelve months, its cash burn actually ramped up 51%. While this spending increase is no doubt intended to drive growth, if the trend continues the company's cash runway will shrink very quickly. 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 Entera Bio To Raise More Cash For Growth?

Since its cash burn is moving in the wrong direction, Entera Bio shareholders may wish to think ahead to when the company may need to raise more cash. 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).