Glossary/Fixed income

Default

Also known as Credit default, Event of default

Default is a borrower or contractual party’s failure to meet an obligation under agreed terms. It can involve missed payment, covenant breach, bankruptcy, restructuring, or another specified credit event.

Editorially reviewed 2026-07-30

Why default matters

Default converts credit risk into an actual workout, restructuring, enforcement, or loss process. Its definition affects ratings, derivatives, accounting, legal remedies, and performance measurement.

How it is applied

Investors monitor liquidity, maturity schedules, covenants, payment status, restructuring proposals, collateral, seniority, and recovery scenarios. Expected loss combines default probability with loss severity. Analysts distinguish payment default, covenant default, cross-default, restructuring, bankruptcy, and rating-agency definitions. Expected loss combines probability of default, exposure at default, and loss given default. Monitoring includes liquidity, maturities, covenant headroom, missed disclosures, distressed exchanges, and market indicators.

Portfolio example

A company cannot repay a maturing bond and exchanges it for lower-value securities. Even without a missed coupon, the distressed exchange may be treated as a default. A lender has 10 million exposure, estimates a 3% one-year default probability, and expects 40% recovery. Simplified expected loss is 10 million times 3% times 60%, or 180,000. Actual loss can differ sharply because default and recovery are uncertain and correlated with the economy.

How to interpret it

Default does not imply a total loss. Recovery depends on enterprise value, collateral, priority, jurisdiction, timing, and negotiation. Technical breaches can be cured without economic loss. Default is a contractual or analytical event, not synonymous with total loss. Recovery depends on collateral, seniority, enterprise value, jurisdiction, and time. A distressed exchange may count as default under one framework even though the issuer avoids a missed cash payment.

Limitations and common misconceptions

Definitions vary across contracts and data providers. Defaults cluster in downturns, legal processes take time, and final recoveries are uncertain. Historical default rates may not fit a new cycle. Models based on average historical default rates can understate concentrated or cyclical risk. Recovery estimates may be optimistic and take years to realize. Guarantees can fail, collateral can fall in value, and legal costs reduce proceeds. Definitions should always be stated when comparing statistics. Dependence among borrowers can make portfolio losses much larger than independent-default assumptions imply. Reported default rates should state whether they are issuer weighted or value weighted.

Sources and further reading