What are fallen angel bonds and why do they often outperform?

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AcadiFi · Accepted Answer

Fallen angels are bonds that were investment grade at issuance but have been downgraded to high yield. They outperform for technical and fundamental reasons.

Technical drivers:

1. Forced selling creates mispricing. Many IG funds have mandates barring HY holdings. When a bond is downgraded to BB+, these funds must sell within 30-60 days, often at distressed prices, regardless of fundamentals.
2. Index rebalancing lag. Bonds get removed from IG indexes at month-end, then added to HY indexes. The transition often sees prices overshoot to the downside.
3. Size mismatch. Fallen angels are often large, liquid issues ($1B+ tranches), while the HY market is dominated by smaller deals. The liquidity premium compresses over time.

Fundamental drivers:

4. Quality skew. Fallen angels often have more diversified businesses, better management, and stronger assets than native HY issuers (rising stars' opposites).
5. Rising star potential. Many fallen angels recover to IG within 2-4 years, capturing both spread tightening and upgrade rally.

For Meridian Auto Parts downgraded from BBB- to BB+ in January at a price of 87, by December the bond had rallied to 96 as the company executed a debt reduction plan. Annualized total return of approximately 18%.

Research (Altman, Ng) shows fallen angels outperform original-issue HY by 100-200 bp annualized over long periods. ETFs like ANGL specifically target this anomaly.

What are fallen angel bonds and why do they often outperform?

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