What Is Debt-to-Equity?
The debt-to-equity ratio (D/E) compares a company's total liabilities to its shareholders' equity:
D/E = Total Liabilities / Shareholders' Equity
A D/E of 1.0 means the company has equal amounts of debt and equity financing. A D/E of 2.0 means it has twice as much debt as equity.
When Debt Is Productive
Debt is not inherently bad. When a company can borrow at 4% and invest in projects that return 15%, leverage creates value. Capital-intensive industries like utilities, real estate, and telecommunications routinely operate with higher D/E ratios because their stable cash flows support regular debt servicing.
The key question is whether the company's return on invested capital (ROIC) consistently exceeds its cost of debt.
When Debt Becomes Dangerous
Debt amplifies both gains and losses. During economic downturns, companies with heavy debt face fixed interest payments regardless of revenue performance. If cash flow drops below debt service requirements, the company may face distress or bankruptcy.
Cyclical businesses — those whose revenues fluctuate significantly with economic conditions — carry higher risk at elevated D/E levels. What works in an expansion can become lethal in a recession.
Industry Context
D/E ratios vary enormously by sector. Financial institutions routinely carry D/E ratios above 5.0 because their business model is built on leverage. Technology companies often carry D/E below 0.5 because they generate high margins with minimal capital requirements.
Comparing D/E across sectors is meaningless. The Apter Risk factor evaluates leverage relative to sector peers and flags outliers within their own context.

