Updated for the 2026-2027 CFA® Level I curriculum.
A swap's price and a swap's value answer two different questions. Price is the fixed rate the two parties agree to at the start. Value is what the contract is worth after market rates move. CFA Level I tests whether you can keep these two ideas separate and explain which side of the swap gains or loses when rates change. After this note, you should be able to state a swap's price at initiation and reason through how its value shifts later.
Quick Answer
Swap pricing sets the fixed rate that makes the swap worth zero to both parties at initiation. Swap value is the mark-to-market worth of the swap after that point, driven by changes in market swap rates. If rates rise above the original swap rate, the fixed-rate payer gains value. If rates fall, the fixed-rate receiver gains value. The swap rate itself does not change once the contract starts.
Key Takeaways About Swap Price and Value
Swap price is the fixed rate set at initiation. It does not change during the life of the swap.
Swap value is the mark-to-market worth of the contract. It changes as market rates move.
A newly initiated swap has a value of zero because the fixed and floating legs have equal value at that point.
Rising market swap rates increase value for the fixed-rate payer and decrease value for the fixed-rate receiver.
Falling market swap rates increase value for the fixed-rate receiver and decrease value for the fixed-rate payer.
Value moves with the difference between the original swap rate and the current market swap rate, not with the notional principal itself.
A common error is treating "swap rate" and "swap value" as interchangeable terms.
What You Need to Know for CFA Level I
Identify the swap rate as the price term fixed at contract initiation.
Explain why a newly initiated swap has zero value to both counterparties.
Determine which party gains or loses value when market rates move after initiation.
Distinguish the fixed-leg perspective from the floating-leg perspective when assessing value.
State the value impact for the fixed-rate payer versus the fixed-rate receiver under rising or falling rates.
Avoid confusing notional principal, which does not change hands, with market value, which does change.
Swap Price vs Swap Value
Swap price is the fixed rate negotiated when the swap is created. Dealers quote this rate so that neither party pays the other anything to enter the contract. Once that rate is set, it stays fixed for the life of the swap. It is a contract term, not a market observation that updates daily.
Swap value is different. It is the present worth of the swap to one party at a given point in time. Value changes because market swap rates for new contracts move after your swap begins. Your swap's fixed rate is now higher or lower than what a new swap would offer, and that gap creates value for one side and a matching loss for the other.
Think of it the way you think about a bond. The coupon rate is fixed at issuance, similar to a swap's price. The bond's market value moves after issuance as yields change, similar to a swap's value.
Swap Rate at Initiation
The swap rate is set using the same present value logic used to price forward rate agreements. Dealers choose the fixed rate that equates the present value of the fixed leg to the present value of the expected floating leg, based on the current term structure of interest rates.
This calculation happens once, at initiation. After that, the swap rate for your contract is locked. It becomes the price term that defines your future cash flows.
Why a New Swap Has Zero Value
At initiation, the present value of what you expect to pay equals the present value of what you expect to receive. Neither party has an advantage, so the swap has zero value to both sides. No upfront payment changes hands.
This is a direct result of how the swap rate is calculated. The rate is chosen specifically to make the two legs equal in value. If the fixed rate were set higher or lower than the market-clearing rate, one party would need to pay the other at initiation to make the trade fair. Standard swaps avoid this by setting the rate so that starting value is exactly zero.
How Swap Value Changes
Once the swap is running, market swap rates for new contracts of the same remaining maturity will move. Your swap's fixed rate stays the same, but the fixed rate on a hypothetical new swap does not. That gap is what creates value.
If new swap rates rise above your contract's fixed rate, the fixed-rate leg you are paying is now cheaper than a floating-rate exposure would cost through a new swap. If new swap rates fall below your fixed rate, the opposite happens.
Value is roughly proportional to the difference between the original fixed rate and the current market rate, applied across the remaining fixed cash flows and discounted to present value. Level I does not require you to compute this in full detail, but you should understand the direction and the driver.
Fixed Payer vs Fixed Receiver Value
Market Rate Movement | Fixed-Rate Payer | Fixed-Rate Receiver |
|---|---|---|
Rates rise above the original swap rate | Gains value | Loses value |
Rates fall below the original swap rate | Loses value | Gains value |
Rates unchanged | No value change | No value change |
The fixed-rate payer benefits when rates rise because they locked in a fixed rate that is now below the market rate. They are paying less than a new contract would require while still receiving the higher floating rate. The fixed-rate receiver benefits when rates fall for the mirror reason. They locked in a fixed rate that is now above the market rate.
Interpreting Current Market Swap Rates
Current market swap rates matter for two things. First, they set the fixed rate on any newly initiated swap today. Second, they act as the benchmark against which existing swaps are marked to market. A swap you entered last year is now compared to what a new swap would offer today, and that comparison produces the current value of your position.
This is why swap rates are quoted continuously by dealers. The rate itself is only the price at initiation, but it becomes the reference point for valuing every outstanding swap with similar characteristics.
Worked Example
Setup. Two firms enter a 2-year interest-rate swap with a notional principal of $10 million. Firm A pays fixed at 4.00% annually and receives floating. Firm B pays floating and receives fixed at 4.00%. At initiation, this swap rate makes the contract worth zero to both parties.
Change in market conditions
One year later, with one year remaining on the swap, new 1-year swaps are being priced at a fixed rate of 5.00%. Market rates have risen by 100 basis points since initiation.
Analysis
Firm A, the fixed-rate payer, is locked into paying only 4.00% while a new swap today would require paying 5.00%. Firm A is better off than if it had to enter a new contract at current rates. Firm B, the fixed-rate receiver, is locked into receiving only 4.00% while a new contract would pay 5.00%. Firm B is worse off relative to current market terms.
The swap's price, 4.00%, never changed. The swap's value changed because market rates moved. Firm A's position now has positive value. Firm B's position now has negative value of the same magnitude. No cash changed hands to create this shift. It reflects the present value of the difference between the contract rate and the current market rate over the remaining life of the swap.
Common Exam Traps
Treating swap rate and swap value as the same thing
The swap rate is fixed at initiation and does not move. Value changes constantly as market rates shift. A question that asks for "the value of the swap" is not asking you to restate the fixed rate.
Assuming a swap remains at zero value throughout its life
Zero value only holds at initiation. Once market rates move, value becomes positive for one party and negative for the other.
Reversing the effect of rising rates on payer and receiver
Rising market rates help the fixed-rate payer and hurt the fixed-rate receiver. Candidates often reverse this under exam pressure. Anchor it to the idea that the payer locked in a now-cheap fixed rate.
Confusing notional principal with market value
Notional principal never changes hands and stays constant for the life of the swap. It is used only to scale the cash flow calculations. Market value is a separate number that reflects the current worth of the position.
Practice Questions
A dealer enters a 3-year interest-rate swap as the fixed-rate receiver at a swap rate of 3.50%. Six months later, market swap rates for comparable remaining maturities have fallen to 2.75%. Which statement best describes the dealer's position?
The dealer's swap rate has decreased to 2.75%, matching current market conditions.
The dealer's swap now has positive value because the fixed rate received exceeds the current market rate.
The dealer's swap has zero value because swaps are always priced to be fair at initiation.
Correct Answer: B
The dealer receives a fixed rate of 3.50% while new swaps now only offer 2.75% fixed. The dealer is receiving more than a new contract would provide, so the position has gained value. The original swap rate does not change after initiation, and zero value applies only at the start of the contract, not throughout its life.
Option A: Incorrect. The swap rate is fixed at initiation and never resets to match current market rates. Only new contracts are priced at the current rate.
Option C: Incorrect. Zero value applies at initiation only. Once market rates move, the swap's value moves away from zero for both parties.
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FAQs About Swap Price and Value
Is the swap rate the same as the swap price?
Yes. The swap rate is the fixed rate agreed at initiation, and it functions as the price of the swap contract.
Can a swap have negative value?
Yes, to one party. If market rates move against your position, your side of the swap can have negative value while the counterparty's side has positive value of the same size.
Does the notional principal change if the swap gains value?
No. Notional principal stays fixed for the life of the swap. Only the market value of the position changes.