Default Risk

FundamentalBonds & Fixed Income2 min read

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