Some say volatility, rather than debt, is the best way to think about risk as an investor, but Warren Buffett famously said that 'Volatility is far from synonymous with risk.' 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. Importantly, Harmonic Inc. (NASDAQ:HLIT) does carry debt. But is this debt a concern to shareholders?

When Is Debt Dangerous?

Debt assists a business until the business has trouble paying it off, either with new capital or with free cash flow. Part and parcel of capitalism is the process of 'creative destruction' where failed businesses are mercilessly liquidated by their bankers. 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. Having said that, the most common situation is where a company manages its debt reasonably well - and to its own advantage. When we think about a company's use of debt, we first look at 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$129.5m in debt in September 2024; about the same as the year before. On the flip side, it has US$58.2m in cash leading to net debt of about US$71.3m.

How Strong Is Harmonic's Balance Sheet?

Zooming in on the latest balance sheet data, we can see that Harmonic had liabilities of US$161.7m due within 12 months and liabilities of US$169.3m due beyond that. On the other hand, it had cash of US$58.2m and US$178.1m worth of receivables due within a year. So its liabilities total US$94.7m more than the combination of its cash and short-term receivables.

Of course, Harmonic has a market capitalization of US$1.38b, so these liabilities are probably manageable. Having said that, it's clear that we should continue to monitor its balance sheet, lest it change for the worse.

We measure a company's debt load relative to its earnings power by looking at its net debt divided by its earnings before interest, tax, depreciation, and amortization (EBITDA) and by calculating how easily its earnings before interest and tax (EBIT) cover its interest expense (interest cover). This way, we consider both the absolute quantum of the debt, as well as the interest rates paid on it.

With net debt sitting at just 1.1 times EBITDA, Harmonic is arguably pretty conservatively geared. And it boasts interest cover of 9.8 times, which is more than adequate. On top of that, Harmonic grew its EBIT by 65% over the last twelve months, and that growth will make it easier to handle its debt. The balance sheet is clearly the area to focus on when you are analysing debt. But it is future earnings, more than anything, that will determine Harmonic's ability to maintain a healthy balance sheet going forward. So if you're focused on the future you can check out this free report showing analyst profit forecasts.

But our final consideration is also important, because a company cannot pay debt with paper profits; it needs cold hard cash. So we always check how much of that EBIT is translated into free cash flow. Over the last three years, Harmonic reported free cash flow worth 5.1% of its EBIT, which is really quite low. That limp level of cash conversion undermines its ability to manage and pay down debt.

Our View

The good news is that Harmonic's demonstrated ability to grow its EBIT delights us like a fluffy puppy does a toddler. But we must concede we find its conversion of EBIT to free cash flow has the opposite effect. Looking at all the aforementioned factors together, it strikes us that Harmonic can handle its debt fairly comfortably. Of course, while this leverage can enhance returns on equity, it does bring more risk, so it's worth keeping an eye on this one. 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. We've identified 1 warning sign with Harmonic , and understanding them should be part of your investment process.

If you're interested in investing in businesses that can grow profits without the burden of debt, then check out this free list of growing businesses that have net cash on the balance sheet.

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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.