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.' It's only natural to consider a company's balance sheet when you examine how risky it is, since debt is often involved when a business collapses. As with many other companies Casella Waste Systems, Inc. (NASDAQ:CWST) makes use of debt. But is this debt a concern to shareholders?

What Risk Does Debt Bring?

Debt assists a business until the business has trouble paying it off, either with new capital or with free cash flow. If things get really bad, the lenders can take control of the business. 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 thing to do when considering how much debt a business uses is to look at its cash and debt together.

What Is Casella Waste Systems's Net Debt?

The image below, which you can click on for greater detail, shows that at March 2024 Casella Waste Systems had debt of US$990.2m, up from US$538.8m in one year. However, because it has a cash reserve of US$196.7m, its net debt is less, at about US$793.6m.

How Strong Is Casella Waste Systems' Balance Sheet?

The latest balance sheet data shows that Casella Waste Systems had liabilities of US$244.1m due within a year, and liabilities of US$1.21b falling due after that. On the other hand, it had cash of US$196.7m and US$150.9m worth of receivables due within a year. So it has liabilities totalling US$1.10b more than its cash and near-term receivables, combined.

Since publicly traded Casella Waste Systems shares are worth a total of US$5.73b, it seems unlikely that this level of liabilities would be a major threat. But there are sufficient liabilities that we would certainly recommend shareholders continue to monitor the balance sheet, going forward.

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). This way, we consider both the absolute quantum of the debt, as well as the interest rates paid on it.

While Casella Waste Systems's debt to EBITDA ratio (2.7) suggests that it uses some debt, its interest cover is very weak, at 2.3, suggesting high leverage. In large part that's due to the company's significant depreciation and amortisation charges, which arguably mean its EBITDA is a very generous measure of earnings, and its debt may be more of a burden than it first appears. So shareholders should probably be aware that interest expenses appear to have really impacted the business lately. More concerning, Casella Waste Systems saw its EBIT drop by 2.5% in the last twelve months. If it keeps going like that paying off its debt will be like running on a treadmill -- a lot of effort for not much advancement. The balance sheet is clearly the area to focus on when you are analysing debt. But ultimately the future profitability of the business will decide if Casella Waste Systems can strengthen its balance sheet over time. 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 company can only pay off debt with cold hard cash, not accounting profits. So we clearly need to look at whether that EBIT is leading to corresponding free cash flow. Over the most recent three years, Casella Waste Systems recorded free cash flow worth 69% 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

Casella Waste Systems's interest cover was a real negative on this analysis, although the other factors we considered were considerably better. In particular, we are dazzled with its conversion of EBIT to free cash flow. When we consider all the factors mentioned above, we do feel a bit cautious about Casella Waste Systems's use of debt. While we appreciate debt can enhance returns on equity, we'd suggest that shareholders keep close watch on its debt levels, lest they increase. 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. These risks can be hard to spot. Every company has them, and we've spotted 5 warning signs for Casella Waste Systems (of which 1 is potentially serious!) you should know about.

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.

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