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. Importantly, The AES Corporation (NYSE:AES) does carry debt. But is this debt a concern to shareholders?

Why Does Debt Bring Risk?

Debt assists a business until the business has trouble paying it off, either with new capital or with free cash flow. Ultimately, if the company can't fulfill its legal obligations to repay debt, shareholders could walk away with nothing. 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. By replacing dilution, though, debt can be an extremely good tool for businesses that need capital to invest in growth at high rates of return. The first step when considering a company's debt levels is to consider its cash and debt together.

See our latest analysis for AES

What Is AES's Debt?

You can click the graphic below for the historical numbers, but it shows that as of June 2022 AES had US$21.4b of debt, an increase on US$20.0b, over one year. On the flip side, it has US$1.67b in cash leading to net debt of about US$19.7b.

A Look At AES' Liabilities

According to the last reported balance sheet, AES had liabilities of US$5.99b due within 12 months, and liabilities of US$25.2b due beyond 12 months. On the other hand, it had cash of US$1.67b and US$1.77b worth of receivables due within a year. So its liabilities outweigh the sum of its cash and (near-term) receivables by US$27.8b.

The deficiency here weighs heavily on the US$15.9b company itself, as if a child were struggling under the weight of an enormous back-pack full of books, his sports gear, and a trumpet. So we definitely think shareholders need to watch this one closely. After all, AES would likely require a major re-capitalisation if it had to pay its creditors today.

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.

With a net debt to EBITDA ratio of 5.9, it's fair to say AES does have a significant amount of debt. But the good news is that it boasts fairly comforting interest cover of 3.3 times, suggesting it can responsibly service its obligations. Worse, AES's EBIT was down 21% over the last year. If earnings keep going like that over the long term, it has a snowball's chance in hell of paying off that debt. 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 AES's ability to maintain a healthy balance sheet going forward. So if you want to see what the professionals think, you might find this free report on analyst profit forecasts to be interesting.

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. Over the last three years, AES recorded negative free cash flow, in total. Debt is usually more expensive, and almost always more risky in the hands of a company with negative free cash flow. Shareholders ought to hope for an improvement.

Our View

To be frank both AES's EBIT growth rate and its track record of staying on top of its total liabilities make us rather uncomfortable with its debt levels. And furthermore, its conversion of EBIT to free cash flow also fails to instill confidence. Considering all the factors previously mentioned, we think that AES really is carrying too much debt. To us, that makes the stock rather risky, like walking through a dog park with your eyes closed. But some investors may feel differently. When analysing debt levels, the balance sheet is the obvious place to start. But ultimately, every company can contain risks that exist outside of the balance sheet. To that end, you should be aware of the 2 warning signs we've spotted with AES .

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.