Default Risk
Quick Definition
The probability that a bond issuer will fail to make scheduled interest or principal payments, potentially resulting in partial or total loss for bondholders.
What Is Default Risk?
Default risk (also called credit risk) is the possibility that a bond issuer will be unable or unwilling to meet its contractual obligations — missing coupon payments, failing to repay principal at maturity, or violating covenants in the bond indenture. Default risk varies enormously across the bond spectrum: U.S. Treasury bonds have essentially zero default risk (backed by the government's taxing power), while high-yield corporate bonds have historically averaged 3-5% annual default rates, spiking to 10%+ during recessions. Rating agencies (S&P, Moody's, Fitch) assess and grade default risk through their credit rating systems. Default risk is the primary driver of credit spreads — the yield premium over Treasuries that investors demand. When a bond does default, investors rarely lose everything; recovery rates average 40-50% for senior unsecured bonds and 60-70% for senior secured bonds. Default risk can be hedged using credit default swaps (CDS), which function like insurance policies against issuer default.
Default Risk Example
- 1High-yield bonds averaged 4.1% annual default rate from 1981-2024, with recovery rates around 40% — meaning 2.5% actual annual loss
- 2Lehman Brothers defaulted on $155 billion in bonds in 2008, with senior bondholders eventually recovering about 28 cents on the dollar
Related Terms
Bond Rating
A credit quality grade assigned by rating agencies (S&P, Moody's, Fitch) that assesses the issuer's ability to repay principal and interest.
Credit Spread
The yield difference between a corporate bond and a risk-free government bond of similar maturity, reflecting the market's assessment of credit risk.
Investment Grade
A bond rating of BBB-/Baa3 or higher, indicating relatively low credit risk and suitability for conservative investors.
Junk Bond
A bond rated below investment grade (BB+/Ba1 or lower), offering higher yields to compensate for elevated default risk.
Bond
A fixed-income debt security where investors loan money to an issuer in exchange for regular interest payments and return of principal at maturity.
Treasury Bond (T-Bond)
A long-term U.S. government debt security with a maturity of 20 or 30 years, paying semiannual coupon interest.
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