By Antonios Fotakis | July 2026
A note before you read: Debt is not inherently bad in a business — used wisely, it accelerates growth. Used recklessly, it destroys companies that looked perfectly healthy on the surface. The Debt-to-Equity ratio is one of the fastest ways to understand which side of that line a company sits on.
What is the debt-to-equity ratio. Let me ask you something.
Imagine two people buying the same €300,000 house.
The first puts down €150,000 of their own money and takes a €150,000 mortgage. They own half the house outright. If property prices fall, they have a cushion. If interest rates rise, they can manage.
The second puts down €30,000 and takes a €270,000 mortgage. They own very little of the house. If property prices fall even slightly, their equity is wiped out. If interest rates rise, the monthly payments become a serious problem.
Same house. Same purchase price. Completely different financial position.
That’s what the Debt-to-Equity ratio reveals about a company – not how much debt it carries in absolute terms, but how that debt compares to what the company actually owns. And that comparison changes everything about how you should think about the risk you’re taking on.
So What Is the Debt-to-Equity Ratio, Exactly?
The Debt-to-Equity ratio (D/E) compares a company’s total debt to its shareholders’ equity – the portion of the business that belongs to its owners after all liabilities are accounted for.
The formula: Debt-to-Equity Ratio = Total Debt ÷ Shareholders’ Equity
If a company has €200 million in total debt and €400 million in shareholders’ equity, the Debt-to-Equity ratio is 0.5. For every €1 of equity, the company carries €0.50 in debt.
If that same company had €600 million in debt against €400 million in equity, the Debt-to-Equity ratio would be 1.5 – meaning the company is funded more by borrowed money than by its own resources.
The Debt-to-Equity ratio doesn’t tell you whether a company is profitable. It tells you how much of its foundation is borrowed — and how exposed it is if conditions change.
What the Numbers Actually Mean
| Debt-to-Equity Ratio | What It Generally Suggests |
|---|---|
| Below 0.5 | Conservative — company funded primarily by equity, low financial risk |
| 0.5 – 1.0 | Moderate — balanced use of debt and equity |
| 1.0 – 2.0 | Higher leverage — acceptable in some sectors, worth examining in others |
| Above 2.0 | Significant debt load — requires careful scrutiny |
| Extremely high | Potential red flag — vulnerable to interest rate rises and earnings downturns |
These are guidelines, not rules. A Debt-to-Equity ratio that looks alarming in one sector can be completely normal in another – and that context is everything.
Why Sector Context Is Non-Negotiable
This is the single most important thing to understand about the Debt-to-Equity ratio: it cannot be read in isolation from the sector.
Some industries are structurally built on debt – not because they’re poorly managed, but because the nature of their business requires it.
Banks and financial institutions borrow money as the core of their business model – they take deposits and lend at a higher rate. A bank with a D/E ratio of 8 or 10 is not in crisis. It’s operating normally.
Utilities – electricity, water, gas providers – have massive infrastructure requirements that are almost always debt-financed. Their revenues are stable and predictable enough to support high leverage comfortably. A D/E of 1.5 to 2.5 is typical and expected.
REITs carry significant debt by design – property acquisition is capital-intensive, and their income streams are stable enough to service that debt reliably. If you’ve read our article on REITs, you’ll recognise this as part of their fundamental structure.
Technology companies and consumer goods businesses, by contrast, often operate with very low debt – sometimes near zero – because their businesses don’t require heavy capital expenditure and they generate strong cash flows organically.
A D/E ratio of 1.5 in a utility is unremarkable. The same ratio in a software company demands an explanation.
Always compare a company’s D/E ratio to the average for its industry – not to an abstract number you’ve decided is “safe.”
Why Debt Isn’t Always the Enemy
Here is the nuance that separates investors who understand balance sheets from those who simply fear debt.
Used strategically, debt accelerates growth in ways equity alone cannot. A company that borrows at 4% interest and deploys that capital into projects returning 15% is creating genuine value for shareholders – the difference between the cost of borrowing and the return on investment goes directly to the bottom line.
This is called financial leverage – and it’s one of the reasons why Return on Equity can look so different from Return on Assets. A company using debt effectively can generate higher returns on equity than one relying purely on its own capital – because it’s working with more resources than it actually owns.
The risk appears when the return on those borrowed resources falls below the cost of servicing the debt. When that happens, leverage stops amplifying gains and starts amplifying losses. And the more debt a company carries, the more destructive that reversal becomes.
Debt is a tool. Like all tools, its effect depends entirely on who is using it and whether they know what they’re doing.
The Hidden Risk That High Debt Creates
Beyond the mathematics, high Debt-to-Equity ratios create a specific type of vulnerability that doesn’t appear in earnings reports or P/E ratios – and that can catch investors completely off guard.
Interest rate sensitivity. A company carrying significant variable-rate debt sees its interest expenses rise directly when central banks raise rates. A business that was comfortably servicing its debt at 2% interest may struggle significantly at 5% – even if its revenues haven’t changed at all. The 2022–2023 rate hiking cycle exposed exactly this vulnerability in many highly leveraged companies that had appeared perfectly healthy during the low-rate era.
Reduced flexibility. A company with heavy debt obligations has less freedom to navigate difficult periods. It cannot easily cut prices to compete, absorb a bad quarter, invest in new opportunities, or return capital to shareholders – because a large portion of its cash flow is already committed to debt repayments.
Refinancing risk. Debt doesn’t disappear – it matures and needs to be refinanced. A company that borrowed at historically low rates and needs to refinance at significantly higher rates faces a sudden, unavoidable increase in costs that didn’t exist when you first evaluated it.
None of these risks appear directly on a stock screener. The Debt-to-Equity ratio is your earliest warning signal that they might exist.
Want to understand how to evaluate a company’s financial health and balance sheet strength when making real investment decisions? Get the complete Stocks Explained guide here.
How Debt-to-Equity Fits Into Our Three Categories
At AF Core Global, debt levels are part of how we evaluate every pick – and they show up differently across our three philosophies.
In Fortress, we work primarily with broad ETFs and index funds – which automatically diversify across hundreds of companies with varying debt levels. No single company’s leverage can meaningfully damage the overall portfolio. The aggregate debt exposure is balanced by the breadth of the holdings.
In Cash Flow, debt levels matter significantly when evaluating dividend sustainability. A company paying a generous dividend while carrying heavy debt is in a precarious position – if earnings dip or refinancing costs rise, the dividend is often the first thing to be cut. We always cross-reference dividend yield and payout ratio with the D/E ratio before forming a view on income reliability.
In High Voltage, we accept higher risk – but we want that risk to come from the growth opportunity, not from a fragile balance sheet. A high-growth company with manageable debt and strong cash flow generation is a very different bet from one growing on borrowed time. Debt in a High Voltage pick is something we watch closely as the company scales.
One number. Three different conversations. Not blind trust. Informed choice.
What to Look For When You See D/E on a Screener
When the Debt-to-Equity ratio appears in your research, run through this sequence before drawing any conclusions:
What sector is this company in? Compare the D/E to the industry average – not to an abstract benchmark.
Is the debt fixed or variable rate? Variable rate debt is more exposed to interest rate changes. Fixed rate debt locks in the cost regardless of what central banks do.
Is the debt trend improving or worsening? A company steadily reducing its D/E ratio over several years is deleveraging – becoming financially stronger. A rising D/E trend demands an explanation.
Does the ROE look inflated? As we covered in the Return on Equity article, high ROE can sometimes be a product of high leverage rather than genuine efficiency. D/E and ROE read together give you a much clearer picture than either alone.
Can the business service its debt comfortably? Look at the interest coverage ratio if available – how many times over the company’s earnings cover its interest payments. A comfortable buffer here is a sign of genuine financial health.
For a complete guide to evaluating a company’s financial health and balance sheet strength, our Stocks Explained guide covers everything you need. 👉 Get the Stocks Explained Guide Here
Nothing in this article constitutes financial advice. All content is for informational and educational purposes only. Always do your own research before making any investment decision.
