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.' When we think about how risky a company is, we always like to look at its use of debt, since debt overload can lead to ruin. Importantly, PTC Inc. (NASDAQ:PTC) does carry debt. But the real question is whether this debt is making the company risky.

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. 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. When we think about a company's use of debt, we first look at cash and debt together.

How Much Debt Does PTC Carry?

As you can see below, at the end of December 2023, PTC had US$2.26b of debt, up from US$1.35b a year ago. Click the image for more detail. However, it does have US$265.0m in cash offsetting this, leading to net debt of about US$2.00b.

How Healthy Is PTC's Balance Sheet?

According to the last reported balance sheet, PTC had liabilities of US$950.3m due within 12 months, and liabilities of US$2.51b due beyond 12 months. On the other hand, it had cash of US$265.0m and US$678.0m worth of receivables due within a year. So its liabilities total US$2.52b more than the combination of its cash and short-term receivables.

Since publicly traded PTC shares are worth a very impressive total of US$21.5b, 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.

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).

PTC's debt is 3.5 times its EBITDA, and its EBIT cover its interest expense 3.4 times over. Taken together this implies that, while we wouldn't want to see debt levels rise, we think it can handle its current leverage. More concerning, PTC saw its EBIT drop by 4.6% in the last twelve months. If that earnings trend continues the company will face an uphill battle to pay off its debt. When analysing debt levels, the balance sheet is the obvious place to start. But ultimately the future profitability of the business will decide if PTC can strengthen its balance sheet over time. So if you're focused on the future you can check out this free report showing analyst profit forecasts.

Finally, a business needs free cash flow to pay off debt; accounting profits just don't cut it. So we always check how much of that EBIT is translated into free cash flow. Over the last three years, PTC actually produced more free cash flow than EBIT. That sort of strong cash conversion gets us as excited as the crowd when the beat drops at a Daft Punk concert.

Our View

When it comes to the balance sheet, the standout positive for PTC was the fact that it seems able to convert EBIT to free cash flow confidently. However, our other observations weren't so heartening. For example, its interest cover makes us a little nervous about its debt. When we consider all the elements mentioned above, it seems to us that PTC is managing its debt quite well. But a word of caution: we think debt levels are high enough to justify ongoing monitoring. There's no doubt that we learn most about debt from the balance sheet. However, not all investment risk resides within the balance sheet - far from it. We've identified 2 warning signs with PTC , and understanding them should be part of your investment process.

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.