Warren Buffett famously said, 'Volatility is far from synonymous with risk.' 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 MTR Corporation Limited (HKG:66) 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. However, a more frequent (but still costly) occurrence is where a company must issue shares at bargain-basement prices, permanently diluting shareholders, just to shore up its balance sheet. Of course, plenty of companies use debt to fund growth, without any negative consequences. When we think about a company's use of debt, we first look at cash and debt together.

How Much Debt Does MTR Carry?

As you can see below, at the end of December 2023, MTR had HK$59.6b of debt, up from HK$47.1b a year ago. Click the image for more detail. On the flip side, it has HK$22.4b in cash leading to net debt of about HK$37.3b.

How Strong Is MTR's Balance Sheet?

The latest balance sheet data shows that MTR had liabilities of HK$21.6b due within a year, and liabilities of HK$146.0b falling due after that. On the other hand, it had cash of HK$22.4b and HK$19.6b worth of receivables due within a year. So it has liabilities totalling HK$125.6b more than its cash and near-term receivables, combined.

This deficit is considerable relative to its very significant market capitalization of HK$157.9b, so it does suggest shareholders should keep an eye on MTR's use of debt. This suggests shareholders would be heavily diluted if the company needed to shore up its balance sheet in a hurry.

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.

MTR's net debt of 2.4 times EBITDA suggests graceful use of debt. And the fact that its trailing twelve months of EBIT was 8.1 times its interest expenses harmonizes with that theme. Shareholders should be aware that MTR's EBIT was down 32% last year. If that decline continues then paying off debt will be harder than selling foie gras at a vegan convention. There's no doubt that we learn most about debt from the balance sheet. But it is future earnings, more than anything, that will determine MTR'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.

Finally, while the tax-man may adore accounting profits, lenders only accept cold hard cash. So we clearly need to look at whether that EBIT is leading to corresponding free cash flow. Considering the last three years, MTR actually recorded a cash outflow, overall. Debt is far more risky for companies with unreliable free cash flow, so shareholders should be hoping that the past expenditure will produce free cash flow in the future.

Our View

To be frank both MTR's conversion of EBIT to free cash flow and its track record of (not) growing its EBIT make us rather uncomfortable with its debt levels. But at least it's pretty decent at covering its interest expense with its EBIT; that's encouraging. We're quite clear that we consider MTR 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. There's no doubt that we learn most about debt from the balance sheet. However, not all investment risk resides within the balance sheet - far from it. We've identified 2 warning signs with MTR , and understanding them should be part of your investment process.

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.