What are fallen angel bonds?

Fallen angels are corporate or sovereign bonds that were issued with investment-grade credit ratings (BBB- or higher) but have subsequently been downgraded to high-yield status (BB+ or lower). The term captures the idea of a "fall from grace" as the issuer's creditworthiness deteriorates. These bonds represent some of the most interesting opportunities in credit markets because the downgrade process itself creates dislocations.

When a bond is downgraded from investment-grade to high-yield, it triggers forced selling by institutional investors. Many pension funds, insurance companies, and investment-grade bond funds have mandates that prohibit holding below-investment-grade debt. When a large issuer like Ford or Kraft Heinz gets downgraded, billions of dollars in bonds must be sold by institutions that can no longer hold them. This selling pressure drives prices below where the credit fundamentals alone would justify, creating a temporary cheapness that high-yield investors and unconstrained funds can exploit.

Fallen angels differ systematically from "original-issue" high-yield bonds. Fallen angels tend to be larger, more liquid, and issued by more established companies that have hit a rough patch rather than smaller, inherently speculative issuers. They also tend to have lower default rates than original-issue high-yield bonds of the same rating, likely because their management teams and business models were strong enough to achieve investment-grade status initially. These characteristics make fallen angel portfolios attractive from a risk-return perspective.

The COVID-19 pandemic produced the largest wave of fallen angels in history, with over $200 billion in bonds downgraded to junk in 2020, including Ford Motor, Occidental Petroleum, and several airlines. Many of these issuers subsequently improved their finances and were upgraded back to investment-grade status, a process called "rising stars." The fallen angel phenomenon illustrates how credit rating mechanics, combined with rigid investment mandates, can create systematic mispricings that sophisticated investors can capture.