Finance
3 min read

Junk Bond

A high-yield bond rated below investment grade by credit-rating agencies. Junk bonds offer higher interest to compensate for higher default risk and are sensitive to economic conditions.

Why "junk"

The term "junk bond" reflects credit-rating agency assessments. Bonds rated:

  • AAA through BBB- — investment grade.
  • BB+ and below — speculative grade, also called "high yield" or pejoratively "junk."

The label captures real risk: junk bonds default at much higher rates than investment-grade bonds. Historical default rates for high-yield bonds run 2-4% annually in normal times, spiking to 10%+ in recessions. Investment-grade default rates are typically below 0.5%.

Why investors buy junk bonds

The compensation: higher yields. Junk bonds typically yield 300-600 basis points (3-6%) above Treasury yields, with the spread widening dramatically in stress periods.

For example: 10-year Treasuries at 4.5%, investment-grade corporates at 5.5%, junk bonds at 8-9%. The extra yield compensates for default risk and other liquidity premiums.

Over long periods, junk bonds have produced returns between Treasuries and stocks — meaningfully positive in absolute terms but with significant drawdowns during stress.

How junk bonds behave

A few characteristics:

  • Equity-like during stress. Junk bonds correlate more with stocks than with Treasuries during recessions. Diversification benefit limited when needed most.
  • Sensitivity to credit spreads. Spread widening can produce significant drawdowns even without defaults.
  • Refinancing dependence. Junk-rated companies often need to roll over debt; tight credit markets make this difficult.
  • Sector concentration. Energy, telecom, retail historically had heavy junk presence; specific sector dynamics affect overall junk markets.

Famous junk-bond episodes

  • 1980s — Michael Milken era. Drexel Burnham Lambert pioneered the modern junk-bond market. Funded leveraged buyouts and acquisitions. Ended in scandal and Drexel's bankruptcy.
  • 2002 — corporate defaults spiked after the dot-com bust; junk yields hit double digits.
  • 2008-2009 — junk spreads exceeded 2,000 basis points; defaults hit double digits.
  • 2020 (COVID) — brief spike in junk spreads followed by aggressive Fed support and rapid normalization.
  • 2022-2023 — modest stress as rates rose; less severe than prior cycles.

How to invest in junk bonds

Most retail exposure is via funds:

  • HYG (iShares iBoxx $ High Yield Corporate Bond) — major high-yield ETF.
  • JNK (SPDR Bloomberg High Yield Bond) — alternative high-yield ETF.
  • Active high-yield mutual funds — often used by institutions and advisors.

Direct ownership of individual junk bonds is more common at higher wealth levels with appropriate research capacity.

Where junk bonds fit

A few considerations:

  • Total return objective. Junk produces income plus modest capital gains over cycles.
  • Equity correlation. Don't expect bond-like diversification benefit during equity bear markets.
  • Time horizon. Long horizons let cycles average out; short horizons more vulnerable to specific stress.
  • Portfolio role. Often part of fixed-income allocation with awareness of equity-like risk.

For most retail investors, modest junk-bond exposure (5-10% of bond allocation) is reasonable. Larger allocations should come with awareness of the asset class's specific cycle dynamics.

Junk bonds vs. emerging-market debt

Two categories with similar yields and risk profiles:

  • High-yield US corporates — domestic credit risk, USD-denominated, US-political risk minimal.
  • Emerging-market debt — country-political risk, sometimes currency risk, comparable yields.

Each has its own dynamics; sophisticated investors often hold both for diversification within the high-yield space.

In simple terms

Junk bonds offer higher yields than safe bonds because they have meaningful default risk. The yield premium has historically been worth the risk on average, but with significant drawdowns during stress. Most investors should hold them only as a small piece of overall fixed-income allocation, with awareness that "fixed income" doesn't mean "safe" when you're holding speculative-grade credit.