The external fund manager backed by Berkshire Hathaway's Charlie Munger, Li Lu, makes no bones about it when he says 'The biggest investment risk is not the volatility of prices, but whether you will suffer a permanent loss of capital.' So it might be obvious that you need to consider debt, when you think about how risky any given stock is, because too much debt can sink a company. As with many other companies Etherstack plc (ASX:ESK) makes use of debt. But is this debt a concern to shareholders?
What Risk Does Debt Bring?
Generally speaking, debt only becomes a real problem when a company can't easily pay it off, either by raising capital or with its own cash flow. Ultimately, if the company can't fulfill its legal obligations to repay debt, shareholders could walk away with nothing. However, a more common (but still painful) scenario is that it has to raise new equity capital at a low price, thus permanently diluting shareholders. Of course, debt can be an important tool in businesses, particularly capital heavy businesses. When we examine debt levels, we first consider both cash and debt levels, together.
How Much Debt Does Etherstack Carry?
The image below, which you can click on for greater detail, shows that at June 2025 Etherstack had debt of US$2.57m, up from US$2.43m in one year. However, it does have US$1.67m in cash offsetting this, leading to net debt of about US$899.0k.
A Look At Etherstack's Liabilities
We can see from the most recent balance sheet that Etherstack had liabilities of US$4.24m falling due within a year, and liabilities of US$3.39m due beyond that. Offsetting these obligations, it had cash of US$1.67m as well as receivables valued at US$2.94m due within 12 months. So its liabilities outweigh the sum of its cash and (near-term) receivables by US$3.02m.
Since publicly traded Etherstack shares are worth a total of US$35.5m, it seems unlikely that this level of liabilities would be a major threat. Having said that, it's clear that we should continue to monitor its balance sheet, lest it change for the worse. The balance sheet is clearly the area to focus on when you are analysing debt. But you can't view debt in total isolation; since Etherstack will need earnings to service that debt. So if you're keen to discover more about its earnings, it might be worth checking out this graph of its long term earnings trend.
View our latest analysis for Etherstack
Over 12 months, Etherstack made a loss at the EBIT level, and saw its revenue drop to US$8.8m, which is a fall of 11%. We would much prefer see growth.
Caveat Emptor
Not only did Etherstack's revenue slip over the last twelve months, but it also produced negative earnings before interest and tax (EBIT). To be specific the EBIT loss came in at US$714k. When we look at that and recall the liabilities on its balance sheet, relative to cash, it seems unwise to us for the company to have any debt. Quite frankly we think the balance sheet is far from match-fit, although it could be improved with time. For example, we would not want to see a repeat of last year's loss of US$1.1m. So to be blunt we do think it is risky. When analysing debt levels, the balance sheet is the obvious place to start. However, not all investment risk resides within the balance sheet - far from it. These risks can be hard to spot. Every company has them, and we've spotted 2 warning signs for Etherstack (of which 1 is significant!) you should know about.
At the end of the day, it's often better to focus on companies that are free from net debt. You can access our special list of such companies (all with a track record of profit growth). It's free.
Valuation is complex, but we're here to simplify it.
Discover if Etherstack might be undervalued or overvalued with our detailed analysis, featuring fair value estimates, potential risks, dividends, insider trades, and its financial condition.
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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.
About ASX:ESK
Etherstack
A wireless technology company, engages in the development, manufacture, licensing, and sale of mission critical radio technologies to equipment manufacturers and network operators in the United Kingdom, the United States, Japan, and Australia.
Flawless balance sheet with very low risk.
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