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Team Members: Kaushambi Ghosh (B08012)
Nikhil Verma (B08019)
Rupesh Agrawal (B08026)
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Collateralized Mortgage Obligations (CMO)• Definition
• Structure
• Credit Risk
• Tax Considerations
Stripped Mortgage- Backed Securities (MBS)• Synthetic-Coupon Pass- Throughs
• Interest- Only/ Principal- Only Securities
• CMO Strips
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Definition
Security backed by a pool of Pass- through, whole loans, or
stripped Mortgage Backed Securities
Structured in such a way that they include several classes of
bondholders with varying stated maturities
Objective
Bond classes created by redirecting cash flows of Mortgage-
related products so as to ‘mitigate’ (not eliminate) prepayment risk
associated with Pass- throughs
• Transfers this risk among different classes of bondholders
Parties who can better handle one type of risk (extension or
contraction) invest in ones best for them
Exception: Pay- through securities
• More than one class of bondholders with the same level of credit priority
NOTE: Whole loans are usually larger in size than the maximum amount allowed within
GNMA, FNMA and, FHLMC's standards 4
Classified into different Bond classes referred to as tranches
Principal payments from the underlying collateral are used to
retire the tranches on a priority basis according to terms specified
in the prospectus
Interest Payment is periodic coupon interest on the amount of
outstanding principal at the beginning of each period
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Sequential- Pay CMOs• Each class of bond retire sequentially
• Periodic interest to all tranches with first tranche receiving all principal payments (expected and prepays)
• principal pay-down window – time period between beginning and ending of principal payments for specific tranche
Accrual Bonds• At least one tranche does not receive current interest per month but the
interest is added to the principal balance (the bond is similar to zero coupon
bond
• The interest is used to speed up the pay down of the principal balance of the
earlier bond classes
Cash Flow from
Pass-through securities
Tranches on the basis of specific rules
for coupon and principal payment
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Floating Rate Tranches (Combination of Floaters & Inverse Floaters):
• Partitioning between the floater and inverse floater is driven by the demand of the investors
• Coupon Rate on Floater = LIBOR+ pre-determined rate (fixed)
• Coupon Rate on Inverse Floater= K-L*(one-month LIBOR)
K= Cap or maximum coupon rate for the Inverse Floater
L= Coupon Leverage
• The higher the coupon leverage, the more the inverse floater’s coupon rate changes for a given change in one- month LIBOR Low leverage (0.5 to 2.1)
Medium- leverage (more than 2.1 but lesser than 4.5)
Higher Leverage (higher than 4.5)
Objective of issue: • Matches their liability schedule to the prepayment schedule
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LIBOR is never negative hence the Coupon Rate of
Floating Rate Bond cannot be negative
If there are no restrictions on the inverse floater rate
then there is a possibility of negative coupon rate
• For example:
CAP= 28.5% and Coupon Leverage= 3
If the LIBOR becomes 10% then the coupon rate would become as
follows:
28.5%- 3*10%= 28.5%- 30% = - 1.5%
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PAC Bonds
• Low Contraction and Extension Risk
• Allows greater certainty of timing of CFs
Support/ Companion Bonds
• Forego the scheduled principal repayment
• Do not receive any principal until the PAC bonds receive the
scheduled principal payment that are made
• If paid off due to faster-than-expected pre payments then there
is no longer any protection on PAC bonds
Busted – Term used to denote the break of a PAC schedule
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Determination of Monthly schedule of Principal Repayments
• Minimum (Low Collar)and Maximum (Upper Collar) Prepayment
speeds are assumed till the outstanding principal balance is paid
off
• Minimum Principal payment is determined
Average Life of PAC Bonds varies with the nature of the bond
• For Superior Bonds the effective collar is higher as compared to
the support bonds
Note:
Initial collar is the range of two speeds used to create a PAC bond
Effective collar is the range of PSA in which the average life remains stable
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PAC buyers prefer tight windows
Institutional investors prefer a window which matches
its liability schedule
Investor demand drives the PAC windows that the
issuers will create which in turn is driven by investor
liability schedules
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Lockout PAC Structure
• Issue fewer PAC bonds relative to support bonds
• No principal payments to a PAC bond class in the earlier years
in order to create more Support bonds
Reverse PAC Structure• Any excess principal payments to be made to the longer PAC bonds
after all support bonds are paid off is called a Reverse PAC Structure
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Schedule of principal repayment
Single PSA Rate
Has protection against only Contraction Risk
For institutions not overly concerned with some
extension risk but greatly concerned with contraction
risk
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Schedule of principal repayment
Single PSA Rate
Has protection against only Extension Risk
For institutions not overly concerned with some
contraction risk but greatly concerned with extension
risk
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The interest accrued on accrual bonds are used to pay off the principal and interest of the VADM bonds
Provides protection against extension risk even if prepayments slow down because the interest accrued on Z bond will be sufficient to pay off the scheduled principal and interest on VADM bond
The maximum final maturity can be determined with a high degree of certainty
If prepayments are high resulting in the supporting bond being paid off faster a VADM bond can shorten
Compared with PACs they have greater absolute protection against extension risk
Structures that include these bonds have do not have much significance of contraction risk
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Principal- only• All principal are paid to one bond class
Interest- only• All interest payment are done to another bond class
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In practice the coupon rate of each tranche is different depending
upon the term structure and the average life of the tranche
In earlier CMO deals the excess interest between the coupon rate
on the tranches and coupon rate on the collateral was paid to an
equity class referred to as the CMO Residual
Now a tranche is created which receives the excess coupon
interest known as Notional Interest- only class or Structured IO
Notional Amount for 7.5% IO= (Tranche par value*excess
interest)/0.075
Excess interest= collateral coupon rate- tranche coupon rate
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Tranche Par Amount Notional
Amount
Coupon Rate (%)
A 194,500,000 6.00
B 36,000,000 6.50
C 96,500,000 7.00
Z 73,000,000 7.25
IO 52,566,667 7.5
Total 400,000,000
TRANCHE A:
Notional Amount for 7.5% IO= (194,500,000* (0.075-0.06))/0.075= 38,900,000
TRANCHE B:
Notional Amount for 7.5% IO= (36,000,000*(0.07-0.06))/0.075= 4,800,000
TRANCHE C:
Notional Amount for 7.5% IO= (96,000,000*(0.065-0.06))/0.075= 6,433,333
TRANCHE Z:
Notional Amount for 7.5% IO= (73,000,000*(0.0675-0.6))/0.075= 2,433,333
Coupon Rate of the collateral= 7.5%
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Bonds providing prepayment protection to PAC tranches
Exposed to greatest level of prepayment risk
Support bonds are classified into different bond classes
• Sequential- pay support bond
• Floaters
• Inverse Floaters
• Accrual support bond
Support bonds that are pack bonds can be created (PAC II
Bonds) with a PAC schedule of repayment
PAC II Bonds have greater prepayment protection than the
support bond classes without the schedule of principal
repayments but lesser Prepayment Protection than PAC I
Bonds
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CMOS can be considered to be a business entity• Assets are the collateral (Pass- through or pool of mortgage loans)
• Liabilities are the payments due to the CMO Bond Classes
• Liability obligation : the Par value and the periodic interest payment
that is owed to each class of bond
Agency CMOs: Issued by Freddie Mac, Fannie Mae or Ginnie
Mae
Non- Agency CMOs: Issued by a private entity
• Private Label CMOs: The underlying pool of pass throughs are
guaranteed by an agency
• Whole Loan CMOs: Pool of unsecuritized mortgage loans
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A provision of Tax Reforms, 1986 called Real Estate
Mortgage Investment Conduit (REMIC) specifies the
requirements that an issuer must fulfill so that the legal
entity created to issue a CMO is not taxable
Not all CMOs are REMICs
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1. Synthetic- coupon Pass- throughs
2. Interest- only/ Principal only Pass- through Securities
1. Synthetic – coupon Pass- throughs
Unequal distribution of coupon and principal results in a synthetic
coupon rate that is different from that of the underlying collateral
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2. Interest- only / Principal- only securities
• Principal- only securities
With a fall in the mortgage rates the principal prepayments become faster leading to a rise in the cash flows which are discounted by a lower interest rate and hence the price of a PO rises
With an increase in the mortgage rates the principal prepayments become slower leading to a deterioration in the cash flows which are then discounted by a higher interest rate and hence the price of PO falls
• Interest- only securities
With a fall in the mortgage rates the outstanding balance of principal prepayments fall and hence the interest amount will fall leading to a fall in the price of IO
With a rise in the mortgage rates the outstanding balance of principal prepayments rise and hence the high interest amount will rise leading to a rise in the price of IO
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Commercial Mortgage Loans
• Definition
• Indicators of Potential Performance
• Call Protection
• Balloon Mortgage Provisions
Commercial Mortgage Backed-Securities (CMBS)
• Types of Deals
• Servicer
• Analysis of The Collateral
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Commercial Mortgages loans are for income
producing properties
Includes:
• Multi-family Properties
• Office Buildings
• Shopping Centers
• Hotels
• Health Care Facilities
• Industrial Properties
Commercial Loans are Non-Recourse loans
Potential Performance Measures
• Debt Service Coverage Ratio
NOI/Debt Service
Higher the Ratio better it is
• Loan-to-Value
Expected cash flows are plotted
Discounting rate referred as “Capitalization Rate”
Analysts are skeptical about estimates of market value and resulting
LTV’s reported for properties
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Call Protection to counter the risk of Prepayment
Call protection Methods Prepayment Lockouts
Defeasance
Prepayment Penalty
Yield Maintenance Charge
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Commercial Loans are usually Balloon Loans
Balloon Risk or Extension risk :
Failure of borrower to refinance balloon payment
Measures to counter the Balloon Risk
• Internal Tail
• External Tail
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Single Borrower/Multi Property Deals
• Features
Cross Collateralization
Cross Default feature
• In case of retiring of a property
Retirement should be greater then Asset value
DSC should be maintained
Multi Borrower Deals
• Fusion conduit Deal (for property greater then$ 50 mn)
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A servicer is required to perform key functions like
collecting monthly loan payments, maintaining escrow
for taxes & insurance, preparing reports for trustee etc.
Types of Servicers:
• Sub- Servicer
• Master Servicer
• Special Servicer
Notes:
Banc of America commercial mortgage series 2001-1, GMAC is
the master servicer. Lenner Partners is the special servicer in
above series.
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CMBS are non-recourse in nature hence proper
evaluation should be done
Key checks
Performance Indicators of Property
Property Type
Geographical Distribution of Properties
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Key Factors to be considered
Number and Quality of tenants
Physical Attributes of Building
Business Location
Strength and nature of Local Economy
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