Schweser Pro - Effective Duration Question

dongjohnson

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I'm stumped. On this question, how are you supposed to figure out the initial bond price of 96.267? What am I missing?

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Given the following two pairs of price and yield (price, yield): (94.064, 8.3%) and (98.469, 7.7%), the effective duration of the bond is:

A) 4.34.


B) 2.75.


C) 27.53.


D) 7.63.




Your answer: B was incorrect. The correct answer was D) 7.63.


The change in the yield is (8.3-7.7)/2=0.3 or 30 basis points.

Duration = (98.469-94.064)/(2*96.267*0.003) =7.63.
 
The 96.267 is the average price (98.469+94.064)/2 = 96.2665.
 
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