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 Amphenol Corporation (NYSE:APH) does use debt in its business. But the more important question is: how much risk is that debt creating?

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When Is Debt A Problem?

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. 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. The first thing to do when considering how much debt a business uses is to look at its cash and debt together.

What Is Amphenol's Net Debt?

You can click the graphic below for the historical numbers, but it shows that as of June 2025 Amphenol had US$8.06b of debt, an increase on US$5.44b, over one year. On the flip side, it has US$3.23b in cash leading to net debt of about US$4.84b.

How Healthy Is Amphenol's Balance Sheet?

According to the last reported balance sheet, Amphenol had liabilities of US$5.60b due within 12 months, and liabilities of US$8.46b due beyond 12 months. On the other hand, it had cash of US$3.23b and US$4.27b worth of receivables due within a year. So it has liabilities totalling US$6.57b more than its cash and near-term receivables, combined.

Of course, Amphenol has a titanic market capitalization of US$136.6b, 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.

See our latest analysis for Amphenol

In order to size up a company's debt relative to its earnings, we calculate its net debt divided by its earnings before interest, tax, depreciation, and amortization (EBITDA) and its earnings before interest and tax (EBIT) divided by its interest expense (its interest cover). The advantage of this approach is that we take into account both the absolute quantum of debt (with net debt to EBITDA) and the actual interest expenses associated with that debt (with its interest cover ratio).

Amphenol's net debt is only 0.93 times its EBITDA. And its EBIT covers its interest expense a whopping 15.8 times over. So you could argue it is no more threatened by its debt than an elephant is by a mouse. On top of that, Amphenol grew its EBIT by 57% over the last twelve months, and that growth will make it easier to handle its debt. There's no doubt that we learn most about debt from the balance sheet. But it is future earnings, more than anything, that will determine Amphenol'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.

Finally, a company can only pay off debt with cold hard cash, not accounting profits. So the logical step is to look at the proportion of that EBIT that is matched by actual free cash flow. During the last three years, Amphenol produced sturdy free cash flow equating to 72% of its EBIT, about what we'd expect. This free cash flow puts the company in a good position to pay down debt, when appropriate.

Our View

The good news is that Amphenol's demonstrated ability to cover its interest expense with its EBIT delights us like a fluffy puppy does a toddler. And that's just the beginning of the good news since its EBIT growth rate is also very heartening. Overall, we don't think Amphenol is taking any bad risks, as its debt load seems modest. So the balance sheet looks pretty healthy, to us. The balance sheet is clearly the area to focus on when you are analysing debt. But ultimately, every company can contain risks that exist outside of the balance sheet. These risks can be hard to spot. Every company has them, and we've spotted 1 warning sign for Amphenol you should know about.

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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.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.