Updated for the 2026-2027 CFA® Level I curriculum.
Bond cash flows can differ in coupon timing, coupon amount, and principal repayment. Contingency provisions can also change when or how those payments occur.
Quick Answer
Common bond cash flows include fixed, floating, zero-coupon, deferred-coupon, step-up, bullet, and amortizing structures. A call gives the issuer redemption control, while a put gives that control to the investor. A conversion privilege lets the investor exchange debt for equity under stated terms.
Key Takeaways
Coupon structures determine the timing and variability of interest.
Bullet bonds repay principal at maturity; amortizing bonds repay it over time.
A zero-coupon bond pays no periodic interest but is issued below par.
Calls normally benefit issuers, especially after yields fall.
Puts and conversion privileges are investor-controlled protections or opportunities.
Contingent features make expected cash flows different from certain cash flows.
What You Need to Know for CFA Level I
Recognize a cash flow structure from a short description.
Compare coupon timing and principal repayment patterns.
Identify which party controls a contingency provision.
Explain the related reinvestment or extension risk.
Pricing and yield calculations belong on the bond valuation and yield-measure notes.
What Cash Flows Can a Fixed-Income Instrument Pay?
A fixed-rate bond pays coupons based on a stated rate. A floating-rate bond resets its coupon from a reference rate plus a spread. A zero-coupon bond has no periodic coupon and pays par at maturity. A deferred-coupon bond begins coupon payments after an initial period, while a step-up bond increases its coupon on scheduled dates.
The principal structure matters as much as the coupon. It determines how long the investor's capital remains outstanding and how quickly credit exposure declines.
Coupon and Principal Repayment Structures
A bond's stated coupon does not tell you when principal returns. Compare the payment schedule for each structure before estimating cash flow timing or reinvestment needs.
Structure | Cash flow pattern | Main risk |
|---|---|---|
Fixed-rate | Level stated coupons | Market value changes when yields change |
Floating-rate | Coupon resets periodically | Reference rate and issuer spread risk |
Zero-coupon | No periodic coupons; par at maturity | High price sensitivity for its maturity |
Bullet | Principal repaid at maturity | Large final payment |
Amortizing | Principal repaid gradually | Earlier cash flows must be reinvested |
When a fixed coupon amount is needed:
where:
Coupon payment = cash interest paid each period
Par value = amount repaid at maturity
Annual coupon rate = stated annual interest rate
Payments per year = number of coupon payments made each year
This formula describes a payment. It does not calculate the bond's price.
Contingency Provisions That Benefit Issuers
A call provision lets the issuer redeem a bond before maturity under specified terms. If market yields fall, the issuer may call high-coupon debt and refinance more cheaply. The investor receives principal sooner and may need to reinvest at lower rates. This is reinvestment risk.
Other issuer-controlled provisions may permit early repayment when stated events occur. Always identify who controls the decision and how that decision changes the timeline.
Contingency Provisions That Benefit Investors
A put provision lets the investor sell the bond back to the issuer at a stated price on specified dates. It can protect the investor when yields rise or issuer quality deteriorates.
A conversion privilege lets the investor exchange the bond for a stated number of common shares. The feature can add value when the share price rises, but the investor gives up the bond claim upon conversion.
Provision | Decision maker | Primary benefit |
|---|---|---|
Call | Issuer | Opportunity to refinance after yields fall |
Put | Investor | Opportunity to exit under stated terms |
Conversion | Investor | Potential participation in equity upside |
Who Bears Reinvestment or Extension Risk?
When the issuer calls a bond, the investor receives cash earlier than expected and bears reinvestment risk. When rates rise, an issuer is less likely to call, so the bond may remain outstanding longer than the investor expected. This is extension risk. A put shifts some timing control toward the investor.
Working Example
Consider two five-year, 6% annual-pay bonds issued at par. Bond A is callable at par after year three. Bond B is non-callable. After year two, comparable yields fall to 3%.
Bond A's issuer can refinance at a lower rate after the call date.
The issuer therefore has an incentive to call Bond A.
Bond A's investor may receive par after year three instead of the final two coupons.
Bond B continues according to its original schedule.
The exam insight is that a call changes the expected timeline because the issuer exercises the option when doing so is economically favorable.
Common Exam Traps
Assuming every bond pays a level coupon. Zero-coupon, floating-rate, step-up, and amortizing structures create different timing or amounts of cash flow. Read the contract before projecting payments.
Confusing a bullet bond with a zero-coupon bond. A bullet bond repays principal at maturity and may pay coupons along the way; a zero-coupon bond makes no periodic coupon payments.
Reversing call and put rights. A call allows the issuer to redeem under specified terms, which can help when rates fall; a put gives the investor a right to sell the bond back under specified terms.
Treating expected cash flows as unconditional. A call, put, conversion, or prepayment provision can change the timing or form of payments. Value the security using the relevant contingent terms.
Practice Question
Which provision most directly benefits an issuer when market yields fall after a bond is issued?
A call provision
A put provision
A conversion privilege held by the investor
Correct Answer: Option A
A call provision can let the issuer redeem higher-coupon debt and refinance at a lower rate when market yields fall.
Option B: A put provision gives the investor the right to sell the bond back to the issuer, so it primarily benefits the investor.
Option C: A conversion privilege held by the investor gives the investor, not the issuer, control over conversion.
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FAQs About Fixed-Income Cash Flow Structures and Contingency Provisions
What are common bond cash flow structures?
They include fixed, floating, zero-coupon, deferred, step-up, bullet, and amortizing structures.
Which contingency provisions benefit bond issuers?
A call provision generally benefits the issuer by allowing early redemption under stated terms.
How does a call provision change expected bond cash flows?
It can end future coupon payments and return principal before maturity, creating reinvestment risk for the investor.