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, Silicom (NASDAQ:SILC) shareholders have done very well over the last year, with the share price soaring by 160%. But the harsh reality is that very many loss making companies burn through all their cash and go bankrupt.

Given its strong share price performance, we think it's worthwhile for Silicom shareholders to consider whether its cash burn is concerning. In this report, we will consider the company's annual negative free cash flow, henceforth referring to it as the 'cash burn'. The first step is to compare its cash burn with its cash reserves, to give us its 'cash runway'.

Does Silicom Have A Long 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. When Silicom last reported its March 2026 balance sheet in April 2026, it had zero debt and cash worth US$35m. In the last year, its cash burn was US$4.0m. So it had a cash runway of about 8.9 years from March 2026. Even though this is but one measure of the company's cash burn, the thought of such a long cash runway warms our bellies in a comforting way. Depicted below, you can see how its cash holdings have changed over time.

Is Silicom's Revenue Growing?

Given that Silicom actually had positive free cash flow last year, before burning cash this year, we'll focus on its operating revenue to get a measure of the business trajectory. While it's not that amazing, we still think that the 15% increase in revenue from operations was a positive. While the past is always worth studying, it is the future that matters most of all. So you might want to take a peek at how much the company is expected to grow in the next few years.

How Easily Can Silicom Raise Cash?

While Silicom is showing solid revenue growth, it's still worth considering how easily it could raise more cash, even just to fuel faster growth. Issuing new shares, or taking on debt, are the most common ways for a listed company to raise more money for its business. Commonly, a business will sell new shares in itself to raise cash and drive 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.

Silicom's cash burn of US$4.0m is about 1.6% of its US$249m market capitalisation. So it could almost certainly just borrow a little to fund another year's growth, or else easily raise the cash by issuing a few shares.

How Risky Is Silicom's Cash Burn Situation?

It may already be apparent to you that we're relatively comfortable with the way Silicom is burning through its cash. For example, we think its cash runway suggests that the company is on a good path. And even though its revenue growth wasn't quite as impressive, it was still a positive. After considering a range of factors in this article, we're pretty relaxed about its cash burn, since the company seems to be in a good position to continue to fund its growth.

If you would prefer to check out another company with better fundamentals, then do not miss this free list of interesting companies, that have HIGH return on equity and low debt or this list of stocks which are all forecast to grow.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.