Key Takeaways
- A sinkable bond is a type of debt where the issuer sets up a fund to repurchase and retire parts of the bond periodically.
- These bonds reduce borrowing costs for issuers and offer investors more security, though returns are influenced by market rates and redemption timing.
- Sinkable bonds often have a provision for repurchase at par plus market interest, enhancing price stability.
- Issuers can benefit from refinancing at lower interest rates if market conditions are favorable.
- Yield to average life is a key metric for investors, assessing potential returns based on bond lifespan and repurchase scenarios.
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What Is a Sinkable Bond?
A sinkable bond is backed by a sinking fund, where the issuer puts money aside over time to repay portions of the bond before maturity. This can lower the issuer’s borrowing costs and give investors security through reserved funds. Keep in mind that returns can vary based on market conditions and redemption. Interest rate changes and when portions of the bond may be redeemed are important, as they can affect investors’ income and returns.
Function and Benefits of Sinkable Bonds for Issuers and Investors
Corporations and municipalities benefit from sinkable bonds as they can repay when interest rates fall below the bond’s nominal rate. They can then refinance the balance of the money they need to borrow at a lower rate.
Issuers gradually reduce the outstanding balance by paying loans and interest in installments.
Calculating Yield to Average Life for Sinkable Bonds
Because sinkable bonds typically have shorter durations than their maturity dates, investors may calculate a bond’s yield to average life when determining whether to purchase a sinkable bond. The yield to average life takes into consideration how long a bond may have before retirement and how much income the investor may realize.
Important
Sinkable bonds typically have a provision allowing them to be repurchased at par plus the prevailing market interest rate.
The yield to average life is also important when bonds with sinking funds are trading below par, since repurchasing the bonds gives a bit of price stability.
Real-World Example of a Sinkable Bond
Say Mars Inc. decides to issue $20 million in bonds with a maturity of 20 years. The business creates a $20 million sinking fund and a call schedule for the next 20 years. On the anniversary date of each bond being issued, the company withdraws $1 million from the sinking fund and calls 5% of its bonds.
Because the sinking fund adds stability to the repayment process, the ratings agencies rate the bonds as AAA and reduce the interest rate from 6.3% to 6%. The corporation saves $120,000 in interest payments in the first year and additional money thereafter.
The enhanced repayment protection offered by the sinking funds is attractive to investors seeking a safe investment. However, investors may have concerns over the bonds being redeemed before maturity, as they will lose out on interest income.
Companies must disclose their sinkable bond obligations in financial statements and the prospectus.
The Bottom Line
A sinkable bond is a debt backed by a sinking fund, offering investors safety through cash reserves while allowing issuers to lower borrowing costs and refinance at better rates. Investors should consider yield to average life, as early redemptions, like Mars Inc.’s example, can reduce interest income. While secure, returns remain uncertain due to market conditions and redemption timing.