CFA CFA Level 1 Question of the Week – Fixed Income

Question of the Week – Fixed Income

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    • Avatar of exam_whizexam_whiz
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        Correct Answer: C

        For callable bonds, Z-spread is greater than OAS and option cost is greater than 0. For putable bonds, Z-spread is less than OAS and option cost is less than 0. Only statement I is correct.

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        Can anyone explain this?

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        For a Putable bond, the yield will be smaller as investors will value it more; so when you take away the put the OAS will have to be larger than the z-spread. For a Callable bond, the yield will be larger as investors will not value it more; so when you take away the Call the z-spread will be larger than the OAS. Hopefully that helps conceptualize the reasoning behind the spread differences. 

      • Avatar of shannondailyshannondaily
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          Boo! I got it wrong. :neutral_face: 

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          got it…thanks

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