Debt-to-equity ratio

A ratio compares two figures to reveal something neither number shows on its own. The debt-to-equity ratio compares how much of a company is funded by debt against how much is funded by shareholders, showing how leveraged the business is.

The debt-to-equity ratio divides total debt by total shareholders equity. It shows how many dollars of debt exist for every dollar shareholders have invested in the business.

The formula is: Total debt / Total shareholders equity.

A low debt-to-equity ratio means the company relies mostly on shareholder capital rather than borrowing, generally a more conservative and resilient financial structure. A high debt-to-equity ratio means the company is leaning more heavily on debt, which can amplify returns to shareholders when things go well but also amplifies losses and financial stress when they don't, since debt must be repaid regardless of how the business is performing.

What counts as a reasonable debt-to-equity ratio varies enormously by industry. Capital-intensive businesses like utilities or airlines typically carry much higher leverage than asset-light businesses like software companies, so the ratio is most meaningful when compared against similar companies rather than judged in isolation.