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Debt-to-Equity

Debt-to-Equity = Total Debt ÷ Shareholders' Equity

Debt-to-equity compares what a company owes to what owners put in. Borrowing makes good years look better — and bad years much worse.

01 Feel it first

Borrowing cuts both ways

Pick No debt or Heavy debt, then tap Good year or Bad year. Watch how the same business swing feels bigger once money is borrowed.

Debt-to-equity
0.00

02 Break the intuition

"More debt made the returns look amazing."

Good-year hero. Bad year wipes equity. Reveal both sides.

GOOD YEAR
+50%
equity return · levered
Asset move+20%
Looks heroic
BAD YEAR
−75%
equity return · levered
Asset move−30%
Equity crushed
With heavy leverage, a +20% asset year can look like +50% on equity. The same leverage turns a −30% asset year into something that can erase most of the equity. Amplifiers cut both ways.

03 Feel the leverage

Debt cuts both ways

Pick a debt level, then tap Good year or Bad year. Watch how the same business swing hits equity harder as leverage rises.

Leverage
Base move
±20%
Leverage
1.0×

Pick a debt level, then tap Good year or Bad year.

04 Watch the path

Good year, then bad year

Same two-year swing, different debt loads. Press Play and watch equity rise, then fall harder at high leverage.

Pick a path
Press play
100

Illustrative equity index: good years then a bad stretch.

Pick a path, then press Play to watch the years fill in.

05 Two flavors

Book equity vs market equity

Same debt, different bottom number. Book equity is the accounting pile. Market equity is what the stock is worth today.

Uses shareholders’ equity from the balance sheet — accounting owners’ money. Stable and easy to compare in filings, but it can lag reality after big write-downs or for businesses with few hard assets.

06 The catch

“High” debt depends on the industry

Utilities often run high; software often runs low; banks are a special case with their own leverage rules.

Utilities
High
Software
Low
Banks
Special

Illustrative sector D/E. Banks use different leverage lenses.

07 Check yourself

Five quick checks

Question 1 of 5
Quick checkDebt $40, equity $20. Debt-to-equity is:
2.0 is right. D/E = 40 ÷ 20 = 2.0.

08 Where it breaks

When debt-to-equity misleads

Leases hide or show up differently

Rent-like lease debts can sit on or off the balance sheet depending on accounting rules. Compare companies carefully.

Negative equity breaks the ratio

Big losses or buybacks can push equity below zero. Then debt-to-equity becomes meaningless or inverted.

Industries have different “normal”

A “high” number for software is normal for a utility. Always compare within the same sector.

It ignores when the debt comes due

Debt-to-equity does not say if the bills are due next month or in ten years. A wall of near-term maturities is a different risk.

See leverage on a live stock.

Open any ticker for debt context and coverage — then screen for balance-sheet risk.