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. We can see that Minerals Technologies Inc. (NYSE:MTX) does use debt in its business. But should shareholders be worried about its use of debt?

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. If things get really bad, the lenders can take control of the business. 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 Minerals Technologies's Net Debt?

You can click the graphic below for the historical numbers, but it shows that Minerals Technologies had US$982.9m of debt in September 2024, down from US$1.04b, one year before. However, it also had US$324.5m in cash, and so its net debt is US$658.4m.

How Strong Is Minerals Technologies' Balance Sheet?

The latest balance sheet data shows that Minerals Technologies had liabilities of US$464.0m due within a year, and liabilities of US$1.19b falling due after that. Offsetting this, it had US$324.5m in cash and US$412.5m in receivables that were due within 12 months. So its liabilities outweigh the sum of its cash and (near-term) receivables by US$912.2m.

While this might seem like a lot, it is not so bad since Minerals Technologies has a market capitalization of US$2.66b, and so it could probably strengthen its balance sheet by raising capital if it needed to. However, it is still worthwhile taking a close look at its ability to pay off debt.

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.

Minerals Technologies has net debt worth 1.8 times EBITDA, which isn't too much, but its interest cover looks a bit on the low side, with EBIT at only 4.8 times the interest expense. While that doesn't worry us too much, it does suggest the interest payments are somewhat of a burden. If Minerals Technologies can keep growing EBIT at last year's rate of 10% over the last year, then it will find its debt load easier to manage. 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 Minerals Technologies'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, while the tax-man may adore accounting profits, lenders only accept cold hard cash. So we clearly need to look at whether that EBIT is leading to corresponding free cash flow. In the last three years, Minerals Technologies's free cash flow amounted to 39% of its EBIT, less than we'd expect. That weak cash conversion makes it more difficult to handle indebtedness.

Our View

Both Minerals Technologies's ability to to grow its EBIT and its net debt to EBITDA gave us comfort that it can handle its debt. Having said that, its conversion of EBIT to free cash flow somewhat sensitizes us to potential future risks to the balance sheet. When we consider all the factors mentioned above, we do feel a bit cautious about Minerals Technologies's use of debt. While debt does have its upside in higher potential returns, we think shareholders should definitely consider how debt levels might make the stock more risky. Above most other metrics, we think its important to track how fast earnings per share is growing, if at all. If you've also come to that realization, you're in luck, because today you can view this interactive graph of Minerals Technologies's earnings per share history for free.

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.