The external fund manager backed by Berkshire Hathaway's Charlie Munger, Li Lu, makes no bones about it when he says '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 HC SemiTek Corporation (SZSE:300323) does use debt in its business. But is this debt a concern to shareholders?

When Is Debt Dangerous?

Generally speaking, debt only becomes a real problem when a company can't easily pay it off, either by raising capital or with its own cash flow. If things get really bad, the lenders can take control of the business. 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 examine debt levels, we first consider both cash and debt levels, together.

How Much Debt Does HC SemiTek Carry?

As you can see below, HC SemiTek had CN¥2.03b of debt at December 2023, down from CN¥2.28b a year prior. However, it does have CN¥612.8m in cash offsetting this, leading to net debt of about CN¥1.42b.

How Strong Is HC SemiTek's Balance Sheet?

The latest balance sheet data shows that HC SemiTek had liabilities of CN¥2.56b due within a year, and liabilities of CN¥1.10b falling due after that. Offsetting these obligations, it had cash of CN¥612.8m as well as receivables valued at CN¥1.83b due within 12 months. So its liabilities total CN¥1.21b more than the combination of its cash and short-term receivables.

While this might seem like a lot, it is not so bad since HC SemiTek has a market capitalization of CN¥5.10b, and so it could probably strengthen its balance sheet by raising capital if it needed to. But we definitely want to keep our eyes open to indications that its debt is bringing too much risk.

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 we wouldn't worry about HC SemiTek's net debt to EBITDA ratio of 3.7, we think its super-low interest cover of 1.7 times is a sign of high leverage. In large part that's due to the company's significant depreciation and amortisation charges, which arguably mean its EBITDA is a very generous measure of earnings, and its debt may be more of a burden than it first appears. It seems clear that the cost of borrowing money is negatively impacting returns for shareholders, of late. Worse, HC SemiTek's EBIT was down 26% 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. There's no doubt that we learn most about debt from the balance sheet. But you can't view debt in total isolation; since HC SemiTek will need earnings to service that debt. 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 it's worth checking how much of that EBIT is backed by free cash flow. Over the last two years, HC SemiTek saw substantial negative free cash flow, in total. While investors are no doubt expecting a reversal of that situation in due course, it clearly does mean its use of debt is more risky.

Our View

To be frank both HC SemiTek'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 its level of total liabilities is not so bad. We're quite clear that we consider HC SemiTek to be really rather risky, as a result of its balance sheet health. So we're almost as wary of this stock as a hungry kitten is about falling into its owner's fish pond: once bitten, twice shy, as they say. While HC SemiTek didn't make a statutory profit in the last year, its positive EBIT suggests that profitability might not be far away. Click here to see if its earnings are heading in the right direction, over the medium term.

Of course, if you're the type of investor who prefers buying stocks without the burden of debt, then don't hesitate to discover our exclusive list of net cash growth stocks, today.

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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.