Is STO (KOSDAQ:098660) A Risky Investment?

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. As with many other companies STO Co., Ltd. (KOSDAQ:098660) makes use of debt. But should shareholders be worried about its use of debt?

Why Does Debt Bring Risk?

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. The first thing to do when considering how much debt a business uses is to look at its cash and debt together.

View our latest analysis for STO

What Is STO's Debt?

As you can see below, at the end of March 2024, STO had ₩19.2b of debt, up from ₩17.9b a year ago. Click the image for more detail. On the flip side, it has ₩6.29b in cash leading to net debt of about ₩12.9b.

A Look At STO's Liabilities

The latest balance sheet data shows that STO had liabilities of ₩33.3b due within a year, and liabilities of ₩15.8b falling due after that. On the other hand, it had cash of ₩6.29b and ₩4.11b worth of receivables due within a year. So it has liabilities totalling ₩38.7b more than its cash and near-term receivables, combined.

When you consider that this deficiency exceeds the company's ₩27.1b market capitalization, you might well be inclined to review the balance sheet intently. Hypothetically, extremely heavy dilution would be required if the company were forced to pay down its liabilities by raising capital at the current share price.

We measure a company's debt load relative to its earnings power by looking at its net debt divided by its earnings before interest, tax, depreciation, and amortization (EBITDA) and by calculating how easily its earnings before interest and tax (EBIT) cover its interest expense (interest cover). 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).

While STO has a quite reasonable net debt to EBITDA multiple of 1.8, its interest cover seems weak, at 2.3. The main reason for this is that it has such high depreciation and amortisation. While companies often boast that these charges are non-cash, most such businesses will therefore require ongoing investment (that is not expensed.) Either way there's no doubt the stock is using meaningful leverage. Unfortunately, STO's EBIT flopped 11% over the last four quarters. If earnings continue to decline at that rate then handling the debt will be more difficult than taking three children under 5 to a fancy pants restaurant. There's no doubt that we learn most about debt from the balance sheet. But it is STO's earnings that will influence how the balance sheet holds up in the future. So when considering debt, it's definitely worth looking at the earnings trend. Click here for an interactive snapshot.

Finally, a business needs free cash flow to pay off debt; accounting profits just don't cut it. So we clearly need to look at whether that EBIT is leading to corresponding free cash flow. During the last two years, STO generated free cash flow amounting to a very robust 98% of its EBIT, more than we'd expect. That puts it in a very strong position to pay down debt.

Our View

To be frank both STO's interest cover and its track record of staying on top of its total liabilities make us rather uncomfortable with its debt levels. But at least it's pretty decent at converting EBIT to free cash flow; that's encouraging. Overall, we think it's fair to say that STO has enough debt that there are some real risks around the balance sheet. If all goes well, that should boost returns, but on the flip side, the risk of permanent capital loss is elevated by the debt. 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. Case in point: We've spotted 3 warning signs for STO you should be aware of, and 2 of them don't sit too well with us.

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.