CFA Practice Question
There are 227 practice questions for this study session.
CFA Practice Question
Consider a European payer swaption that expires in two years and is exercisable as a one-year swap with quarterly payments, using 90/360 as the day-count adjustment. The exercise rate is 3.6%. The notional principal is $20 million. Now suppose we are at the swaption expiration and the term structure is as follows:
What is the value of the swaption right before expiration?
Explanation: Under these conditions, the swap fixed payment should be 0.0092, equating to an annual fixed rate of 3.68%. The holder of the swaption has the right to enter into a swap to pay 3.6% (which corresponds to a quarterly payment of $180,000), whereas in the market such a swap would require payment at a rate of 3.68% (which corresponds to a quarterly payment of $184,000). If the holder exercises the swap, and enters an opposite swap in the market, he effectively receives a net quarterly payment stream of $184,000 - $180,000 = $4,000. The present value of this payment stream is $4,000 (0.9914 + 0.9824 + 0.9730 + 0.9639) = $15,643.
User Contributed Comments 12
|danlan2||Where does 3.68% come from?|
|danlan2||3.68%=sum of all discount factor
|frankal101||no it does not...|
|ThePessimist||(360/90)*(1-0.9639)/(sum of discount factors)=3.68%|
|DZ2008||Your calculations are incorrect.
Doing what you said results in 3.6924%.
actually carry out the calculations and you will see, 3.68% is a mystery
|DZ2008||Ahhh I see ... they rounded to 0.0092 for this part: (1-0.9639)/(.9914+.9824+.973+.9639) even though it should actually be 0.009231, which makes a big difference|
|dblueroom||Yep, if you had 3.6924, you would end up with 17,000 + I used 3.069%|
|HectorRS2||Rat diff: 3.68% - 3.60%=.08%
Annualized to quaterly: .08% * 90/360 = .02%
Quaterly Payment: .02% * 20.000.000= 4.000
PV =4.000*(discount factors) =15.643
|uviolet||ThePessimist is correct. Use the Fixed rate formula and then multiply it by 4 to get the annual rate of 3.68|
|broadex||Calculate Fixed Rate:
x/4(sum of discounts)=1 (i.e variable reset of 1)
Then calculate rate diff: 0.08%
|adamrej||If you do things carefully, the market rate you find is 3.69(...) and not 3.68. This little (seemingly inconsequential) difference makes the PV of swaption to be about $17600 about $2000 off the answer provided.|