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 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. Importantly, Waters Corporation (NYSE:WAT) does carry debt. But the more important question is: how much risk is that debt creating?

When Is Debt A Problem?

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. 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, plenty of companies use debt to fund growth, without any negative consequences. The first thing to do when considering how much debt a business uses is to look at its cash and debt together.

What Is Waters's Net Debt?

You can click the graphic below for the historical numbers, but it shows that Waters had US$2.01b of debt in June 2024, down from US$2.64b, one year before. On the flip side, it has US$327.4m in cash leading to net debt of about US$1.68b.

How Healthy Is Waters' Balance Sheet?

Zooming in on the latest balance sheet data, we can see that Waters had liabilities of US$762.5m due within 12 months and liabilities of US$2.27b due beyond that. Offsetting these obligations, it had cash of US$327.4m as well as receivables valued at US$610.1m due within 12 months. So its liabilities outweigh the sum of its cash and (near-term) receivables by US$2.10b.

Of course, Waters has a titanic market capitalization of US$20.0b, so these liabilities are probably manageable. However, we do think it is worth keeping an eye on its balance sheet strength, as it may change over time.

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). 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).

Waters's net debt of 1.7 times EBITDA suggests graceful use of debt. And the alluring interest cover (EBIT of 8.6 times interest expense) certainly does not do anything to dispel this impression. But the other side of the story is that Waters saw its EBIT decline by 7.0% over the last year. If earnings continue to decline at that rate the company may have increasing difficulty managing its debt load. 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 Waters's ability to maintain a healthy balance sheet going forward. So if you want to see what the professionals think, you might find this free report on analyst profit forecasts to be interesting.

Finally, a business needs free cash flow to pay off debt; accounting profits just don't cut it. So we clearly need to look at whether that EBIT is leading to corresponding free cash flow. During the last three years, Waters produced sturdy free cash flow equating to 56% of its EBIT, about what we'd expect. This cold hard cash means it can reduce its debt when it wants to.

Our View

Waters's interest cover was a real positive on this analysis, as was its conversion of EBIT to free cash flow. On the other hand, its EBIT growth rate makes us a little less comfortable about its debt. Considering this range of data points, we think Waters is in a good position to manage its debt levels. Having said that, the load is sufficiently heavy that we would recommend any shareholders keep a close eye on it. 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. To that end, you should be aware of the 1 warning sign we've spotted with Waters .

If, after all that, you're more interested in a fast growing company with a rock-solid balance sheet, then check out our list of net cash growth stocks without delay.

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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.