Even when a business is losing money, it's possible for shareholders to make money if they buy a good business at the right price. 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. But while history lauds those rare successes, those that fail are often forgotten; who remembers Pets.com?

Given this risk, we thought we'd take a look at whether Solitario Zinc (NYSEMKT:XPL) shareholders should be worried about its cash burn. In this article, we define cash burn as its annual (negative) free cash flow, which is the amount of money a company spends each year to fund its growth. 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 Solitario Zinc

How Long Is Solitario Zinc's Cash Runway?

A company's cash runway is the amount of time it would take to burn through its cash reserves at its current cash burn rate. In June 2019, Solitario Zinc had US$10m in cash, and was debt-free. Importantly, its cash burn was US$1.9m over the trailing twelve months. Therefore, from June 2019 it had 5.5 years of cash runway. While this is only one measure of its cash burn situation, it certainly gives us the impression that holders have nothing to worry about. The image below shows how its cash balance has been changing over the last few years.

How Is Solitario Zinc's Cash Burn Changing Over Time?

Solitario Zinc 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. During the last twelve months, its cash burn actually ramped up 83%. 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 Easily Can Solitario Zinc Raise Cash?

While Solitario Zinc does have a solid cash runway, its cash burn trajectory may have some shareholders thinking 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. Many companies end up issuing new shares to fund future 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.