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 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 note that Builders FirstSource, Inc. (NYSE:BLDR) does have debt on its balance sheet. But the real question is whether this debt is making the company risky.
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. 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. Having said that, the most common situation is where a company manages its debt reasonably well - and to its own advantage. The first step when considering a company's debt levels is to consider its cash and debt together.
As you can see below, at the end of March 2025, Builders FirstSource had US$4.48b of debt, up from US$3.70b a year ago. Click the image for more detail. However, because it has a cash reserve of US$115.4m, its net debt is less, at about US$4.36b.
We can see from the most recent balance sheet that Builders FirstSource had liabilities of US$1.80b falling due within a year, and liabilities of US$5.27b due beyond that. On the other hand, it had cash of US$115.4m and US$1.68b worth of receivables due within a year. So its liabilities total US$5.27b more than the combination of its cash and short-term receivables.
While this might seem like a lot, it is not so bad since Builders FirstSource has a huge market capitalization of US$12.7b, 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.
Check out our latest analysis for Builders FirstSource
We use two main ratios to inform us about debt levels relative to earnings. The first is net debt divided by earnings before interest, tax, depreciation, and amortization (EBITDA), while the second is how many times its earnings before interest and tax (EBIT) covers its interest expense (or its interest cover, for short). Thus we consider debt relative to earnings both with and without depreciation and amortization expenses.
Builders FirstSource has net debt worth 2.2 times EBITDA, which isn't too much, but its interest cover looks a bit on the low side, with EBIT at only 6.3 times the interest expense. While that doesn't worry us too much, it does suggest the interest payments are somewhat of a burden. Importantly, Builders FirstSource's EBIT fell a jaw-dropping 32% in the last twelve months. If that decline continues then paying off debt will be harder than selling foie gras at a vegan convention. 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 Builders FirstSource'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 it's worth checking how much of that EBIT is backed by free cash flow. During the last three years, Builders FirstSource generated free cash flow amounting to a very robust 94% of its EBIT, more than we'd expect. That positions it well to pay down debt if desirable to do so.
Builders FirstSource's EBIT growth rate and level of total liabilities definitely weigh on it, in our esteem. But its conversion of EBIT to free cash flow tells a very different story, and suggests some resilience. Looking at all the angles mentioned above, it does seem to us that Builders FirstSource is a somewhat risky investment as a result of its debt. Not all risk is bad, as it can boost share price returns if it pays off, but this debt risk is worth keeping in mind. The balance sheet is clearly the area to focus on when you are analysing debt. However, not all investment risk resides within the balance sheet - far from it. Case in point: We've spotted 2 warning signs for Builders FirstSource you should be aware of.
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.