What it means
Credit ratings run from the highest grades down through a boundary that sits between BBB- and BB+ on the main scales. Crossing that boundary downwards is the event that creates a fallen angel, and it is a mechanical trigger rather than a matter of opinion for many investors.
The forced selling happens because pension funds, insurers and index-tracking bond funds often have mandates permitting only investment grade holdings. When a bond crosses the line, those holders must sell within a set window regardless of price, so the bond's price frequently drops further than the change in fundamentals alone would justify.
That dynamic is exactly why some investors specialise in fallen angels. Buying from forced sellers has historically produced attractive returns, because the price overshoots on the way down and partially recovers once the mandated selling is complete, though the companies involved are genuinely riskier than before.
The opposite journey exists too. A bond upgraded from high yield into investment grade is called a rising star, and it enjoys the mirror image of the effect, with mandated buyers entering and the price firming.
The nuance to hold onto is that the downgrade is a symptom, not the disease. A company becomes a fallen angel because of falling earnings, a debt-funded acquisition, a structural decline in its industry or a shock, and the investment question is always whether that underlying problem is temporary or permanent.
In practice
Real-world examples.
Example
A large retailer funds a major acquisition with debt, pushing its leverage above the threshold its rating agency tolerates. The downgrade to BB+ turns $3,000,000,000 of its bonds into fallen angels, and index funds tracking investment grade benchmarks sell over the following month.
Example
An airline is downgraded after a sharp fall in travel demand. A specialist credit fund buys its bonds at 72 cents on the dollar, judging that the airline's landing slots and fleet provide enough asset backing to survive, and holds through the recovery to a partial rebound in price.
Example
A corporate treasurer notices her company's rating is one notch above the boundary and cancels a planned share buyback, choosing to repay $150,000,000 of debt instead, specifically to avoid the higher borrowing costs that follow a downgrade below investment grade.
Think of it
“A fallen angel is a former investment-grade bond now rated junk-a downgraded credit.
Formula
Calculation
Current Yield = Annual Coupon Payment / Current Market Price
Consider a bond with a face value of $1,000 paying a 5% annual coupon, so $50 a year. It was issued at par when the company was rated BBB and traded around $1,000.
Original current yield = $50 / $1,000 = 5.0%
Following a downgrade to BB+, forced selling pushes the price to $800.
New current yield = $50 / $800 = 6.25%
An investor holding $2,000,000 of face value has seen the market value fall from $2,000,000 to $2,000,000 x 0.80 = $1,600,000, a paper loss of $400,000. A buyer stepping in at $800 receives the same $50 coupon on a smaller outlay and, if the bond is repaid at its $1,000 face value at maturity, also collects a $200 gain per bond on top of the income.Case study
Seen in the real world.
This fictional case is illustrative only. Crestmoor Utilities, an invented energy distributor, carried a BBB rating for eleven years until a regulatory ruling cut its allowed returns and a storm repair programme added $600,000,000 of unplanned capital spending. Within four months it was downgraded to BB+, and its 6% bonds fell from around par to 78 cents on the dollar.
Two investors responded differently. A pension fund with an investment grade mandate sold its entire $80,000,000 holding within the required 30-day window, crystallising a loss of roughly $17,600,000. A credit specialist bought a large part of that position, reasoning that a regulated utility with physical assets and captive customers had a strong chance of repaying in full.
In this illustrative story the company cut its dividend, sold a non-core division and regained its investment grade rating three years later. The bonds returned close to par, and the difference in outcome between the two investors came down not to analysis but to whose rules permitted them to keep holding.
Watch out
Common mistakes.
- Assuming a fallen angel is close to default, when most downgraded issuers continue paying interest normally and many recover their rating.
- Buying purely because the price fell, without assessing whether the cause of the downgrade is a temporary setback or a permanent decline in the business.
- Confusing a fallen angel with an original high yield issuer, when the first was underwritten to investment grade standards and often has better covenants and larger asset backing.
Questions
People also ask.
What actually triggers the fallen angel label?
A downgrade by the rating agencies from the lowest investment grade rating to the highest high yield rating, which is a defined line rather than a judgement call for index purposes.
Why does the price fall more than the credit risk seems to justify?
Because many institutional holders are contractually required to sell within a short window, creating a wave of supply that temporarily overwhelms demand.
Can a fallen angel become investment grade again?
Yes, and such an issuer is then called a rising star, which typically follows debt reduction, asset sales or a recovery in earnings.
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