Puttable Corporate Bonds

A puttable bond gives the bondholder the right to redeem the bond early (at par or a formula price) before maturity. Common put triggers include credit rating downgrades, change of control, or a specified date. Put options protect bondholders from prolonged exposure to deteriorating credit and warrant lower yields than equivalent non-puttable bonds.

Key takeaways

• Put options allow bondholders to exit early if specified events occur (typically rating downgrades below investment grade, change of control, or maturity milestones)
• Bondholders pay for put protection in the form of lower coupons or tighter spreads versus non-puttable bonds
• Rating downgrade puts are most common and protect against deterioration; change-of-control puts protect against risky acquisitions
• Puts reduce duration uncertainty and cap downside risk, making puttable bonds suitable for conservative investors or deteriorating credits
• Most corporate puttable bonds are held by institutional investors; individual investors rarely access them directly

How put options work

A put option allows the bondholder to force the issuer to repurchase the bond at a specified price and time. Example:

• Bond: ABC Corporation 5.5% Senior Notes due 2034
• Par value: $1,000
• Put trigger: If ABC's credit rating falls from BBB to BB or below
• Put price: Par plus accrued interest (usually $1,000)
• Put date: Within 30–60 days of the rating downgrade becoming effective

If ABC is downgraded to BB, the bondholder has 30–60 days to "put" the bond back to ABC at par. If the bondholder exercises the put, ABC is obligated to redeem the bond immediately at $1,000.

Why is this valuable? If ABC's credit is deteriorating (downgrade to BB signals higher default risk), the bond's market price might fall to $850. The bondholder can force ABC to buy it back at $1,000, realizing the full value rather than taking a loss. The put option is, effectively, an insurance policy.

Types of put triggers

Rating downgrade puts (most common)

• Triggered if the bond is downgraded below a specified threshold (typically BBB/Baa3, the investment-grade boundary)
• Protects the bondholder from holding deteriorating credit long-term
• Example: Issuer falls from BBB to BB; bondholder can put the bond at par

Change-of-control puts

• Triggered if the company is acquired, merged, or undergoes significant ownership change
• Protects against hostile acquisitions, leveraged buyouts, or acquisition by a weaker credit
• Example: IBM acquires XYZ Corp; bondholder can put the bond if XYZ's rating falls or if the acquirer's credit is weaker
• Particularly common in high-yield bonds and bonds from potential takeover targets

Maturity puts (step-downs)

• Triggered on specified dates, allowing bondholders to exit every 5 or 10 years
• Acts as a mini-maturity; bondholders can reset their exposure without holding to final maturity
• Example: 30-year bond with puts at years 10 and 20, allowing the bondholder to reassess every decade

Event of default puts

• Triggered if the company defaults on another material obligation or enters bankruptcy
• Allows early exit if the issuer enters financial distress

Hybrid puts

• Combine multiple triggers (e.g., rating downgrade below BBB or change of control at unfavorable terms)

Why issuers include put options

Including a put option increases the bondholder's protection, which reduces risk and justifies lower coupons. Issuers are willing to accept puts because:

1. Access to capital: Putting a put option on the bond makes it more attractive to conservative investors (pension funds, insurance companies), widening the buyer base and lowering the issuer's borrowing cost
2. Incentive to maintain credit quality: A put option is an incentive for the issuer not to get downgraded; if downgraded, the issuer faces sudden redemption obligations, forcing refinancing at worse rates
3. Investor demand: In some markets or for some issuers, institutional investors demand put protection as a condition of purchase

Issuers avoid puts when they have strong credit (the put will never be exercised) or when they want to minimize coupon costs. AAA-rated companies rarely issue puttable bonds because the put is worthless.

Put option value and yield impact

A bondholder with a put option has an insurance policy that the issuer implicitly funds. The put has economic value, typically 50–200 basis points depending on:

• Probability of the put being exercised: Higher probability (weaker credit) = higher value
• Distance to the put trigger: If a bond is trading at par and the downgrade threshold is far away, the put is worth little. If the issuer is close to downgrade, the put is worth more
• Volatility of the issuer's credit: Higher volatility = higher put value (greater chance of sharp deterioration triggering the put)

As a result, puttable bonds yield less than equivalent non-puttable bonds. Example (2024):

• Non-puttable 10-year corporate (BB rated, high yield): 7.5% yield
• Equivalent puttable bond (rating downgrade put, change-of-control put): 6.8% yield

The 70 basis point yield difference is the cost of the put option. The bondholder gives up yield (0.70%) in exchange for the insurance of being able to exit if the credit deteriorates below BBB.

Practical examples

Hybrid Kinetic Energy 5.200% Senior Notes due 2033 with Rating Downgrade Put

• Issued 2023 at par
• Coupon: 5.2% (lower than non-puttable peers due to put protection)
• Put trigger: If downgraded below BBB by two of three major rating agencies
• Put price: Par + accrued interest
• Put exercise period: 30 days after downgrade
• Scenario: If HKE is downgraded to BB in 2026, the bondholder can force redemption at par in June 2026, locking the full principal rather than facing a price decline to $850 or lower

TechAcquire Corp 6.500% Senior Notes due 2035 with Change-of-Control Put

• Issued 2023 in anticipation of potential acquisition
• Put trigger: Change of control (acquisition or merger of 50%+ of the company) AND the acquirer's rating is below the notes' original rating OR the notes are downgraded to below investment grade
• Put price: 101 (par + 1%)
• Scenario: PrivateEquity Corp acquires TechAcquire at a junk credit quality. Bondholders can put the bonds at 101, realizing their investment + 1% premium, avoiding prolonged exposure to below-investment-grade credit

Infrastructure Bond 4.800% Senior Notes due 2050 with 10-Year Put

• 50-year bond with embedded puts every 10 years
• Put price: Par
• Scenario: Bondholder can evaluate the credit every 10 years (2034, 2044) and decide whether to hold or redeem. In 2034, if the issuer's credit has deteriorated or rates have risen, the bondholder can reset to a new bond or different asset. This reduces the bondholders' exposure to a single long-duration bet

Put options vs. callable bonds: The mirror image

Callable bonds and puttable bonds are mirror images:

• Callable bond: Issuer gets the option; bondholder gets the upside cap (negative convexity)
• Puttable bond: Bondholder gets the option; issuer gets the downside cap (positive convexity for the bondholder)

A callable, puttable bond (callable and puttable) balances the two:

• Issuer can call if rates fall
• Bondholder can put if credit deteriorates
• Both parties have protection; the bond trades at a yield between a straight bond and a purely callable or puttable bond

Challenges and limitations of put options

Liquidity risk: If many bondholders exercise puts simultaneously (e.g., after a downgrade announcement), the issuer must raise cash quickly to redeem. This can stress the issuer's balance sheet, paradoxically accelerating default risk. The put, intended to protect the bondholder, can trigger financial stress.

Waiver and modification: In some cases, bondholders agree to waive a put (even though the trigger has occurred) in exchange for concessions (higher coupon, extended maturity, improved covenants). This requires bondholder consent and can reduce put protection.

Pricing complexity: Put options embed valuation complexity. The bond price depends on the probability of the put being exercised, which is difficult to model. Credit models and option pricing models must work together, making put bonds less transparent than straight bonds.

Execution risk for the issuer: If the bond is puttable and the issuer has weak credit, refinancing to cover put exercises may be impossible at reasonable rates, forcing covenant violations or default.

Decision tree: Puttable vs. non-puttable bonds

Next

Some corporate bonds give bondholders the right to convert into equity shares of the company. Convertible bonds blend bond and equity characteristics, offering different risk-return profiles and requiring hybrid valuation approaches.

Related concepts

• Callable Corporate Bonds
• Convertible Bonds
• What Corporate Bonds Are