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 can see that Liberty Energy Inc. (NYSE:LBRT) does use debt in its business. But is this debt a concern to shareholders?

What Risk Does Debt Bring?

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. Ultimately, if the company can't fulfill its legal obligations to repay debt, shareholders could walk away with nothing. However, a more usual (but still expensive) situation is where a company must dilute shareholders at a cheap share price simply to get debt under control. Of course, debt can be an important tool in businesses, particularly capital heavy businesses. When we think about a company's use of debt, we first look at cash and debt together.

What Is Liberty Energy's Net Debt?

You can click the graphic below for the historical numbers, but it shows that Liberty Energy had US$123.0m of debt in September 2024, down from US$223.0m, one year before. However, it does have US$23.0m in cash offsetting this, leading to net debt of about US$100.0m.

How Strong Is Liberty Energy's Balance Sheet?

According to the last reported balance sheet, Liberty Energy had liabilities of US$748.6m due within 12 months, and liabilities of US$555.3m due beyond 12 months. On the other hand, it had cash of US$23.0m and US$594.1m worth of receivables due within a year. So it has liabilities totalling US$686.8m more than its cash and near-term receivables, combined.

While this might seem like a lot, it is not so bad since Liberty Energy has a market capitalization of US$2.81b, and so it could probably strengthen its balance sheet by raising capital if it needed to. But it's clear that we should definitely closely examine whether it can manage its debt without 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). The advantage of this approach is that we take into account both the absolute quantum of debt (with net debt to EBITDA) and the actual interest expenses associated with that debt (with its interest cover ratio).

Liberty Energy's net debt is only 0.10 times its EBITDA. And its EBIT easily covers its interest expense, being 16.4 times the size. So we're pretty relaxed about its super-conservative use of debt. The modesty of its debt load may become crucial for Liberty Energy if management cannot prevent a repeat of the 40% cut to EBIT over the last year. When it comes to paying off debt, falling earnings are no more useful than sugary sodas are for your health. When analysing debt levels, the balance sheet is the obvious place to start. But ultimately the future profitability of the business will decide if Liberty Energy 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 business needs free cash flow to pay off debt; accounting profits just don't cut it. So the logical step is to look at the proportion of that EBIT that is matched by actual free cash flow. Looking at the most recent three years, Liberty Energy recorded free cash flow of 43% of its EBIT, which is weaker than we'd expect. That's not great, when it comes to paying down debt.

Our View

Liberty Energy's EBIT growth rate was a real negative on this analysis, although the other factors we considered were considerably better. There's no doubt that its ability to to cover its interest expense with its EBIT is pretty flash. When we consider all the factors mentioned above, we do feel a bit cautious about Liberty Energy'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. But ultimately, every company can contain risks that exist outside of the balance sheet. Be aware that Liberty Energy is showing 3 warning signs in our investment analysis , and 1 of those can't be ignored...

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.