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标题: Reading 55: Mortgage-Backed Sector of the Bond Market-LOS i [打印本页]
作者: 土豆妮    时间: 2010-4-21 11:15     标题: [2010]Session 15-Reading 55: Mortgage-Backed Sector of the Bond Market-LOS i

Session 15: Fixed Income: Structured Securities
Reading 55: Mortgage-Backed Sector of the Bond Market

LOS i: Evaluate the risk characteristics and the relative performance of each type of CMO tranche, given changes in the interest rate environment.

 

 

 

Which of the following statements regarding collateralized mortgage obligations (CMOs) is FALSE:

A)

The Z-tranche or accrual tranche does not receive current interest until the other tranches have been paid off.

B)

CMOs perfectly protect investors against contraction risk but do not protect against extension risk.

C)

CMOs are securities issued against passthrough securities for which the cash flows have been reallocated to different bond classes called tranches.



 

CMOs do not perfectly protect investors against contraction risk. They offer some protection against both contraction and extension risks, but not perfect protection against either.

作者: 土豆妮    时间: 2010-4-21 11:15

Which of the following explains why the companion tranches have the greatest prepayment risk in a CMO structure? The companion tranches:

A)
 have to support any principal payments in excess of the scheduled principal payments.
B)
 are more interest rate sensitive and therefore prepayment risk is higher.
C)
 consist of underlying mortgages for which prepayment is allowed, as opposed to the PAC tranches.


There is an inverse relationship between the prepayment risk of PAC tranches and the prepayment risk associated with the support tranches. In other words, the certainty of PAC bond cash flow comes at the expense of increased risk to the support tranches.

作者: 土豆妮    时间: 2010-4-21 11:15

Which of the following is FALSE regarding planned amortization class (PAC) versus support tranches?

A)
 The PAC tranches have the greatest prepayment risk in the collateralized mortgage obligation (CMO) structure.
B)
 The prepayment risk protection provided by the support tranches causes the average life to extend and contract.
C)
 There is an inverse relationship between the prepayment risk of the PAC tranches and the prepayment risk associated with the support tranches.


The support tranches have the greatest prepayment risk in the CMO structure, not the PAC tranches.





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