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 seems the smart money knows that debt - which is usually involved in bankruptcies - is a very important factor, when you assess how risky a company is. As with many other companies Unitil Corporation (NYSE:UTL) makes use of debt. But the more important question is: how much risk is that debt creating?

When Is Debt Dangerous?

Debt and other liabilities become risky for a business when it cannot easily fulfill those obligations, either with free cash flow or by raising capital at an attractive price. Part and parcel of capitalism is the process of 'creative destruction' where failed businesses are mercilessly liquidated by their bankers. 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. The first thing to do when considering how much debt a business uses is to look at its cash and debt together.

What Is Unitil's Net Debt?

As you can see below, at the end of March 2024, Unitil had US$682.7m of debt, up from US$634.9m a year ago. Click the image for more detail. Net debt is about the same, since the it doesn't have much cash.

How Strong Is Unitil's Balance Sheet?

Zooming in on the latest balance sheet data, we can see that Unitil had liabilities of US$276.6m due within 12 months and liabilities of US$910.5m due beyond that. On the other hand, it had cash of US$6.30m and US$91.0m worth of receivables due within a year. So its liabilities total US$1.09b more than the combination of its cash and short-term receivables.

When you consider that this deficiency exceeds the company's US$832.5m market capitalization, you might well be inclined to review the balance sheet intently. In the scenario where the company had to clean up its balance sheet quickly, it seems likely shareholders would suffer extensive dilution.

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

Unitil's debt is 4.2 times its EBITDA, and its EBIT cover its interest expense 2.9 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. However, one redeeming factor is that Unitil grew its EBIT at 10% over the last 12 months, boosting its ability to handle its debt. There's no doubt that we learn most about debt from the balance sheet. But ultimately the future profitability of the business will decide if Unitil 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, while the tax-man may adore accounting profits, lenders only accept cold hard cash. So we always check how much of that EBIT is translated into free cash flow. During the last three years, Unitil burned a lot of cash. While that may be a result of expenditure for growth, it does make the debt far more risky.

Our View

To be frank both Unitil's level of total liabilities and its track record of converting EBIT to free cash flow make us rather uncomfortable with its debt levels. But on the bright side, its EBIT growth rate is a good sign, and makes us more optimistic. It's also worth noting that Unitil is in the Integrated Utilities industry, which is often considered to be quite defensive. We're quite clear that we consider Unitil to be really rather risky, as a result of its balance sheet health. For this reason we're pretty cautious about the stock, and we think shareholders should keep a close eye on its liquidity. When analysing debt levels, the balance sheet is the obvious place to start. However, not all investment risk resides within the balance sheet - far from it. We've identified 2 warning signs with Unitil (at least 1 which shouldn't be ignored) , and understanding them should be part of your investment process.

If you're interested in investing in businesses that can grow profits without the burden of debt, then check out this free list of growing businesses that have net cash on the balance sheet.

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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.