Howard Marks put it nicely when he said that, rather than worrying about share price volatility, 'The possibility of permanent loss is the risk I worry about... and every practical investor I know worries about.' 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 note that OSI Systems, Inc. (NASDAQ:OSIS) does have debt on its balance sheet. But the more important question is: how much risk is that debt creating?

What Risk Does Debt Bring?

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. Part and parcel of capitalism is the process of 'creative destruction' where failed businesses are mercilessly liquidated by their bankers. 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. Of course, the upside of debt is that it often represents cheap capital, especially when it replaces dilution in a company with the ability to reinvest at high rates of return. The first step when considering a company's debt levels is to consider its cash and debt together.

What Is OSI Systems's Debt?

You can click the graphic below for the historical numbers, but it shows that as of March 2024 OSI Systems had US$488.4m of debt, an increase on US$361.3m, over one year. However, it also had US$101.4m in cash, and so its net debt is US$387.0m.

How Strong Is OSI Systems' Balance Sheet?

We can see from the most recent balance sheet that OSI Systems had liabilities of US$761.7m falling due within a year, and liabilities of US$256.0m due beyond that. Offsetting these obligations, it had cash of US$101.4m as well as receivables valued at US$503.8m due within 12 months. So its liabilities total US$412.4m more than the combination of its cash and short-term receivables.

Since publicly traded OSI Systems shares are worth a total of US$2.54b, it seems unlikely that this level of liabilities would be a major threat. But there are sufficient liabilities that we would certainly recommend shareholders continue to monitor the balance sheet, going forward.

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). Thus we consider debt relative to earnings both with and without depreciation and amortization expenses.

With a debt to EBITDA ratio of 1.8, OSI Systems uses debt artfully but responsibly. And the fact that its trailing twelve months of EBIT was 7.1 times its interest expenses harmonizes with that theme. It is well worth noting that OSI Systems's EBIT shot up like bamboo after rain, gaining 45% in the last twelve months. That'll make it easier to manage its 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 OSI Systems'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, a company can only pay off debt with cold hard cash, not accounting profits. So we always check how much of that EBIT is translated into free cash flow. Over the last three years, OSI Systems reported free cash flow worth 2.4% of its EBIT, which is really quite low. For us, cash conversion that low sparks a little paranoia about is ability to extinguish debt.

Our View

On our analysis OSI Systems's EBIT growth rate should signal that it won't have too much trouble with its debt. But the other factors we noted above weren't so encouraging. To be specific, it seems about as good at converting EBIT to free cash flow as wet socks are at keeping your feet warm. When we consider all the elements mentioned above, it seems to us that OSI Systems is managing its debt quite well. Having said that, the load is sufficiently heavy that we would recommend any shareholders keep a close eye on it. 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. We've identified 2 warning signs with OSI Systems (at least 1 which is a bit concerning) , and understanding them should be part of your investment process.

At the end of the day, it's often better to focus on companies that are free from net debt. You can access our special list of such companies (all with a track record of profit growth). It's free.

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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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com