Legendary fund manager Li Lu (who Charlie Munger backed) once said, 'The biggest investment risk is not the volatility of prices, but whether you will suffer a permanent loss of capital.' So it seems the smart money knows that debt - which is usually involved in bankruptcies - is a very important factor, when you assess how risky a company is. We can see that Harmonic Inc. (NASDAQ:HLIT) does use debt in its business. But the real question is whether this debt is making the company risky.
Why Does Debt Bring Risk?
Debt and other liabilities become risky for a business when it cannot easily fulfill those obligations, either with free cash flow or by raising capital at an attractive price. In the worst case scenario, a company can go bankrupt if it cannot pay its creditors. While that is not too common, we often do see indebted companies permanently diluting shareholders because lenders force them to raise capital at a distressed price. Of course, debt can be an important tool in businesses, particularly capital heavy businesses. The first step when considering a company's debt levels is to consider its cash and debt together.
What Is Harmonic's Net Debt?
The chart below, which you can click on for greater detail, shows that Harmonic had US$127.9m in debt in March 2025; about the same as the year before. But it also has US$148.7m in cash to offset that, meaning it has US$20.8m net cash.
A Look At Harmonic's Liabilities
According to the last reported balance sheet, Harmonic had liabilities of US$165.2m due within 12 months, and liabilities of US$162.4m due beyond 12 months. On the other hand, it had cash of US$148.7m and US$104.3m worth of receivables due within a year. So its liabilities outweigh the sum of its cash and (near-term) receivables by US$74.6m.
Given Harmonic has a market capitalization of US$1.07b, it's hard to believe these liabilities pose much threat. Having said that, it's clear that we should continue to monitor its balance sheet, lest it change for the worse. While it does have liabilities worth noting, Harmonic also has more cash than debt, so we're pretty confident it can manage its debt safely.
View our latest analysis for Harmonic
Better yet, Harmonic grew its EBIT by 869% last year, which is an impressive improvement. That boost will make it even easier to pay down debt going forward. There's no doubt that we learn most about debt from the balance sheet. But ultimately the future profitability of the business will decide if Harmonic can strengthen its balance sheet over time. So if you want to see what the professionals think, you might find this free report on analyst profit forecasts to be interesting.
But our final consideration is also important, because a company cannot pay debt with paper profits; it needs cold hard cash. Harmonic may have net cash on the balance sheet, but it is still interesting to look at how well the business converts its earnings before interest and tax (EBIT) to free cash flow, because that will influence both its need for, and its capacity to manage debt. Over the last three years, Harmonic recorded free cash flow worth a fulsome 89% of its EBIT, which is stronger than we'd usually expect. That positions it well to pay down debt if desirable to do so.

Summing Up
We could understand if investors are concerned about Harmonic's liabilities, but we can be reassured by the fact it has has net cash of US$20.8m. The cherry on top was that in converted 89% of that EBIT to free cash flow, bringing in US$110m. So we don't think Harmonic's use of debt is risky. The balance sheet is clearly the area to focus on when you are analysing debt. 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 Harmonic 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.
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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 NasdaqGS:HLIT
Very undervalued with flawless balance sheet.
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