Warren Buffett famously said, '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. As with many other companies Advanced Drainage Systems, Inc. (NYSE:WMS) makes use of debt. But the more important question is: how much risk is that debt creating?

Why Does Debt Bring Risk?

Debt is a tool to help businesses grow, but if a business is incapable of paying off its lenders, then it exists at their mercy. 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. 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.

How Much Debt Does Advanced Drainage Systems Carry?

The chart below, which you can click on for greater detail, shows that Advanced Drainage Systems had US$1.27b in debt in March 2024; about the same as the year before. However, because it has a cash reserve of US$490.2m, its net debt is less, at about US$781.2m.

How Healthy Is Advanced Drainage Systems' Balance Sheet?

Zooming in on the latest balance sheet data, we can see that Advanced Drainage Systems had liabilities of US$439.6m due within 12 months and liabilities of US$1.66b due beyond that. Offsetting this, it had US$490.2m in cash and US$323.6m in receivables that were due within 12 months. So it has liabilities totalling US$1.28b more than its cash and near-term receivables, combined.

Given Advanced Drainage Systems has a humongous market capitalization of US$13.7b, it's hard to believe these liabilities pose much threat. Having said that, it's clear that we should continue to monitor its balance sheet, lest it change for the worse.

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.

Advanced Drainage Systems's net debt is only 0.91 times its EBITDA. And its EBIT covers its interest expense a whopping 10.8 times over. So you could argue it is no more threatened by its debt than an elephant is by a mouse. Advanced Drainage Systems's EBIT was pretty flat over the last year, but that shouldn't be an issue given the it doesn't have a lot of debt. When analysing debt levels, the balance sheet is the obvious place to start. But it is future earnings, more than anything, that will determine Advanced Drainage Systems'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.

But our final consideration is also important, because a company cannot pay debt with paper profits; it needs cold hard cash. So we clearly need to look at whether that EBIT is leading to corresponding free cash flow. Over the most recent three years, Advanced Drainage Systems recorded free cash flow worth 63% of its EBIT, which is around normal, given free cash flow excludes interest and tax. This cold hard cash means it can reduce its debt when it wants to.

Our View

The good news is that Advanced Drainage Systems's demonstrated ability to cover its interest expense with its EBIT delights us like a fluffy puppy does a toddler. And the good news does not stop there, as its net debt to EBITDA also supports that impression! When we consider the range of factors above, it looks like Advanced Drainage Systems is pretty sensible with its use of debt. While that brings some risk, it can also enhance returns for shareholders. 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. For example - Advanced Drainage Systems has 2 warning signs we think you should be aware of.

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.

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