Explain extension and contraction risk, Risk Management

Assignment Help:

Question 1

(a)  Prepayment refers to paying principal on a security before the due date. Prepayment risk is the risk associated with the early unscheduled return of principal on the mortgage pass-through security. The prepayment risks include two main risks namely extension risk and contraction risk.

Extension risk is the risk of the security lengthening in duration owing to the deceleration of payments. Prepayment delays when the interest rates increase because principal cannot be reinvested as much at higher rates. Extension risk occurs because the average life of return of principal gets extended. Extension can be adverse when security is trading at a discount because it delays reinvestment of principal at higher interest rates. Extension may also be beneficial when security is trading at a premium because it delays reinvestment of principal at lower rates.

Contraction risk is the risk of the security shortening in duration owing to acceleration of payments. Prepayment accelerates when interest rates lower, because upside price potential is restricted and cash flows will be reinvested at lower rates. Contraction risk occurs because the average life of return of principal gets shortened. Contraction can be adverse when security is trading at a premium because of capital loss and reinvestment can be made at lower rates. Contraction can be beneficial when security is trading at a discount because of capital gain and reinvestment can be made at higher rates.

(b)  Tranche I has a higher OAS and lower option cost as compared to Tranche II and the effective durations of the two tranches are equal. Rich and cheap securities are identified by comparing the OAS and option costs of the given tranches in a CMO deal. For a given Z-spread and effective duration, cheap securities will normally have high OAS relative to the required OAS and low option costs and rich securities will have low OAS relative the required OAS and high option costs. Cheap securities are undervalued and hence must be bought and vice versa for rich securities. Here Tranche I is undervalued on a relative basis and Tranche II is overvalued, implying that Tranche I is less expensive as compared to Tranche II. Thus Tranche I must be bought and Tranche II must be sold.


Related Discussions:- Explain extension and contraction risk

coon position is quite substantial part, A former alumna of the University...

A former alumna of the University, who originated Racoon.com ((ticker: COON1), recently passed away. In her Will, she named X-University as the beneficiary of her assets, which was

Discuss the application of the actuarial control cycle, Question 1: (i)...

Question 1: (i) Define the following by giving an example: (a) Systemic risk (b) Diversifiable risk (ii) List and describe briefly the different types of ri

Risk management policies, On 1 October 2010, a company issued at par $30 mi...

On 1 October 2010, a company issued at par $30 million (par value) of fixed rate 6% debenture loans to the market at par. Interest on the debenture loans is paid quarterly on the l

Determine about the bull-bear market risk, Bull-Bear Market Risk Thi...

Bull-Bear Market Risk This risk arises from the variability in the market returns resulting from alternating bull and bear market forces. Ø when security index rises fair

Historical simulation approach, How can I calculate 10-day 99% VaR for port...

How can I calculate 10-day 99% VaR for portfolio comprising two banks by using the Historical Simulation Approach ?

Stakeholder analysis, Stakeholder Analysis In the case of syringe manag...

Stakeholder Analysis In the case of syringe management plan, the stakeholders include Maribyrnong Council, Yarra Council and other neighboring ones, manufacturers, distributors

Stress testing, How do you carry out stress testing in a mortgage banking i...

How do you carry out stress testing in a mortgage banking institution?

Risk management decisions should be transparent, Risk management decisions ...

Risk management decisions and practices should be transparent Risk management should include the identification and systematic documentation of all elements of the risk managem

Safety and health policy, Question: Under Section 6 of the Occupational...

Question: Under Section 6 of the Occupational Safety and Health Act 2005, employers have a statutory duty to prepare and keep revised a written statement of their safety and he

Defined contributionm, managing risks in investing defined contribution fun...

managing risks in investing defined contribution funds

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd