Table of Contents
About the Authors
Title Page
Copyright Page
Dedication
Table of Exhibits
Acknowledgements
Introduction
PART ONE - Key Structures and Cash Flow Dynamics
Chapter One - Mortgage-Backed Securities
Origins of the Market
From the Primary to the Secondary Mortgage Market
Agency and Nonagency Market Segments Compared
Pricing of Newly Originated Mortgages
Chapter Notes
Chapter Two - Price Dynamics of Mortages and Cash Flows
Bond and Mortgage Basics
Chapter Three - Valuation of Mortgage- and Asset-Backed Securities
Modeling Cash Flows of Pass-Through, PO, and IO Securities
Effective Duration
Effective Convexity
Case Study: A Pass-Through Security Issued by FNMA
Case Study: Principal-Only and Interest-Only Securities
Chapter Notes
Chapter Four - Other Structures in Asset-Backed Securities: CMOs, PACs, ...
Collateralized Mortgage Obligations
Planned Amortization Class
Floaters and Inverse Floaters
PART TWO - Corporate Debt and the Securitization Markets
Chapter Five - How Ford Motor Credit Corporation Has Used Securitization
The Case of Ford Motor Credit
Securitized Receivables
Advantages of Securitization
Special-Purpose Structure
Allocating and Funding Credit Risk: Subordinate Classes and Residual Interests
The Two-Step Securitization Transaction
Credit Ratings and On-Balance-Sheet versus Off-Balance-Sheet Cost of Funding
Ford Credit Auto Owner Trust 2000-A: A Case Study
Waterfall of Cash Flows
Credit Enhancement
Overcollateralization
Chapter Six - Asset-Backed Commercial Paper
Why Companies Use Asset-Backed Commercial Paper Programs
ABCP Characteristics
Credit Enhancement and Liquidity Support
Accounting Treatment
Risk-Based Capital Regulations
Conversion Factor for Liquidity Facilities
Restructuring Possibilities
PART THREE - Securitization of Revolving Credit
Chapter Seven - Dealer Floor Plan Loans
Trends in Wholesale Automobile Credit Securitization
Basics of the Securitization Scheme
Securing Liquidity
Shifts in Seller’s Interest and Investor Interest
Seller’s Claim on Receivable Pool
Factors in Credit Line Variability
Pool Size Matters
Chapter Eight - Credit Card Receivables
Elements of a Master Trust Pooling and Servicing Agreement
Basics of the Securitization Scheme
The Seller’s Interest and Investor Interest
Retained Interest
Credit Risk and Credit Enhancement
Tranches for A, B, and C Classes
ERISA Restrictions
PART FOUR - Searching for Value in the Mortgage- and Asset-Backed Markets
Chapter Nine - Investment, Speculation, and Hedging
Target Investment
Subordinate Segment of Private-Label MBSs
Interest-Rate Risk
Interest-Only Strips as a Hedging Tool
Principal-Only Strips as a Hedging Tool
Inverse Floaters as a Hedging Tool
Hedging CMOs with Options on Treasury Bonds
Chapter Ten - Credit Risk
Direct Financing of Risk versus Buying a Financial Guaranty
A Financial Guaranty Is Not an Insurance Contract
Selecting Efficient Forms and Levels of Credit Enhancement
Relative Value in Credit-Enhancement Structures
Index
About Bloomberg
Table of Exhibits
EXHIBIT 1.1 Risk Weights as a Function of Asset Rating
EXHIBIT 1.2 Agency Market for MBS
EXHIBIT 1.3 Nonagency Mortgage Market
EXHIBIT 1.4
EXHIBIT 1.5 Sample Purchase Pricing for 15-Year Fixed-Rate Mortgages
EXHIBIT 1.6 Sample Purchase Pricing for 30-Year Fixed-Rate Mortgages
EXHIBIT 1.7 15-Year versus 30-Year Mortgage Pricing for 10-Day Commitment
EXHIBIT 1.8 Mortgage Points: 30-Year Fixed-Rate
EXHIBIT 2.1 Price/Yield Relationship for Bond XYZ
EXHIBIT 2.2 Price/Yield Relationship for Bond XYZ
EXHIBIT 2.3 Mortgage Outstanding Balance over Time
EXHIBIT 2.4 Mortgage Outstanding Balance over Time
EXHIBIT 2.5 Int(t) and Princ(t)
EXHIBIT 2.6 Value of Fixed-Rate Mortgages
EXHIBIT 2.7 Price/Yield Relationship for a Fixed-Rate Mortgage
EXHIBIT 2.8 Value of Pool of Fixed-Rate Mortgages with Prepayment Option
EXHIBIT 2.9 Value of 100 Mortgages with Prepayment Option
EXHIBIT 2.10 Duration and Bond Valuation
EXHIBIT 2.11 Bond XYZ’s Modified Duration
EXHIBIT 2.12 Effect of Prepayment Option on Mortgage Values
EXHIBIT 2.13 Value of Prepayment Option
EXHIBIT 3.1 The Mortgage Securitization Process
EXHIBIT 3.2 Cash Flows Received at CPR of 0 Percent
EXHIBIT 3.3 Cash Flows Received at CPR of 15 Percent
EXHIBIT 3.4 Cash Flows Received at CPR of 30 Percent
EXHIBIT 3.5 Pass-Through Cash Flows over Time
EXHIBIT 3.6 10 Cash Flows over Time
EXHIBIT 3.7 PO Cash Flows over Time
EXHIBIT 3.8 Valuation of PT, 10, and PO Securities under Different CPR Discounting Scenarios
EXHIBIT 3.9 Market Discount Rates and PT, 10, and PO Securities
EXHIBIT 3.10 Pass-Through Security Issued by FNMA, May 1, 1987
EXHIBIT 3.11 Dealer Prepayment Forecasts
EXHIBIT 3.12 Example of S-Shape in Prepayment Curve as Function of Changes in Yield
EXHIBIT 3.13 S-Curves for FBC, UBS, BS, ML, and LB
EXHIBIT 3.14 S-Curves for SAL, GCM, MS, BOA, and GS
EXHIBIT 3.15 Weighted Average Life for FN 50000
EXHIBIT 3.16 Median Weighted Average Lives for FN 50000
EXHIBIT 3.17 reasury Curves
EXHIBIT 3.18 Cash Flow Graph of FN 50000 Showing Low Prepayment Rate
EXHIBIT 3.19 Cash Flow Graph of FN 50000 Showing High Prepayment Rate
EXHIBIT 3.20 Cash Flow Graph of FN 50000 Showing No Prepaid Cash Flows
EXHIBIT 3.21 Projected Cash Flows for the FH3 PO Strip at CPR of 0 Percent
EXHIBIT 3.22 Projected Cash Flows for the FH3 PO Strip at CPR of 20 Percent
EXHIBIT 3.23 Projected Cash Flows for the FH3 PO Strip at CPR of 40 Percent
EXHIBIT 3.24 Projected Cash Flows for the FH3 PO Strip at CPR of 80 Percent
EXHIBIT 3.25 Weight Average Life and PSA for Lehman Brothers
EXHIBIT 3.26 Weight Average Life and PSA for Salomon Brothers
EXHIBIT 3.27 Quick Yield Analysis
EXHIBIT 3.28 Spread I(Spread/WAL) for FHS Class A
EXHIBIT 3.29 Spread Z (Static Spread) for FHS Class A
EXHIBIT 3.30 Projected Cash Flows for FHS Class B for a 0 PSA
EXHIBIT 3.31 Projected Cash Flows for FHS Class B for Multiple PSAs
EXHIBIT 4.1 Principal Cash Flows at CPR of 0 Percent
EXHIBIT 4.2 Principal Cash Flows at CPR of 15 Percent
EXHIBIT 4.3 Principal Cash Flows at CPR of 30 Percent
EXHIBIT 4.4 Principal Cash Flows at CPR of 45 Percent
EXHIBIT 4.5 Principal Cash Flows at CPR of 0 Percent
EXHIBIT 4.6 Principal Cash Flows at CPR of 15 Percent
EXHIBIT 4.7 Principal Cash Flows at CPR of 30 Percent
EXHIBIT 4.8 Principal Cash Flows at CPR of 45 Percent
EXHIBIT 4.9 Summary of Principal Cash Flows at Different CPRs
EXHIBIT 4.10 Class Structure of MBS Issued by FNMA in 2003
EXHIBIT 4.11 Projected Cash Flows for FNR 2003-1A
EXHIBIT 4.12 Projected Cash Flows for FNR 2003-1AG
EXHIBIT 4.13 Projected Cash Flows for FNR 2003-1AR
EXHIBIT 4.14 Projected Cash Flows for FNR 2003-1AT
EXHIBIT 4.15 Projected Cash Flows for FNR 2003-1B
EXHIBIT 4.16 Interest and Principal Cash Flows for Class B of FNR 2003 at 450 PSA
EXHIBIT 4.17 PAC Established with Prepayment Rate Band Having a CPR between 10 and 15 Percent
EXHIBIT 4.18 Description Screen for FNR 2003-20 QB
EXHIBIT 4.19 Cash Flows for FNR 2003-20 QB with a 200 PSA
EXHIBIT 4.20 Cash Flows for FNR 2003-20 QB with a 50 PSA
EXHIBIT 4.21 Cash Flows for FNR 2003-20 QB with a 600 PSA
EXHIBIT 4.22 Cash Flows for FNR 2003-20 QB under Different PSA Scenarios
EXHIBIT 4.23 Cash Flows Allocated to Investors for FNR 2003-20 QB
EXHIBIT 4.24 PAC Interest for FNR 2003-20 QB
EXHIBIT 4.25 PAC Principal for FNR 2003-20 QB
EXHIBIT 4.26 Leverage Ratio
EXHIBIT 4.27 Coupon on Inverse Floaters with Different Leverage Ratios and Libors
EXHIBIT 4.28 Bear Stearns Inverse Floater Example
EXHIBIT 5.1 Ford Motor Credit Funding Spreads
EXHIBIT 5.2 Spreads of Debt Issued by A-2-Rated Finance Companies over Two-Year Treasury Strips
EXHIBIT 5.3 Securitized Funding as a Percent of Total Debt
EXHIBIT 5.4 Ford Credit Auto Owner Trust 2000-A
EXHIBIT 5.5 The Two-Step Securitization Transaction
EXHIBIT 5.6 FASB 140 on Two-Step Securitization Transations
EXHIBIT 5.7 Ford Credit Auto Owner Trust 2000-A, Supplement to Prospectus, 9/17/99
EXHIBIT 5.8 Yield Spreads between Top-Tier and Second-Tier Commercial Paper
EXHIBIT 5.9 Spreads between Tier One and Tier Two Commercial Paper
EXHIBIT 5.10 Commercial Paper Spreads over Treasury Strips
EXHIBIT 5.11 FMCC March 23, 2000 Receivables Securitization
EXHIBIT 5.12 Cash Flows for Publicly Offered Asset-Backed Notes and Certificates of Ford Credit Auto Owner Trust 2000-A at 0.5% Prepayment
EXHIBIT 5.13 Principal Cash Flow Allocation at 0.5% Prepayment
EXHIBIT 5.14 Cash Flows for Publicly Offered Asset-Backed Notes and Certificates of Ford Credit Auto Owner Trust 2000-A at 1.8% Prepayment
EXHIBIT 5.15 Principal Cash Flow Allocation at 1.8% Prepayment
EXHIBIT 5.16 Weighted Average Lives (WAL) of Asset-Backed Securities Issued by Ford Credit Auto Owner Trust 2000-A
EXHIBIT 5.17 A2-Rated Finance Paper: Spread to Treasury Curve
EXHIBIT 5.18 Allocation of Interest and Principal Cash Flows
EXHIBIT 5.19 Months Outstanding under Four Prepayment Scenarios of Senior Note Classes
EXHIBIT 5.20 FMCC 2000-A Credit Enhancement from Overcollateralization
EXHIBIT 5.21 Cumulative Overcollateralization
EXHIBIT 5.22 Ratings Changes for ABS Issued by Ford Credit Auto Owner Trust 2000-A
EXHIBIT 6.1 Tier-One and Tier-Two Commercial Paper Spreads
EXHIBIT 6.2 General Scheme of Financier Conduit
EXHIBIT 6.3 D&K’s Relationship to the ABCP
EXHIBIT 6.4
EXHIBIT 7.1 CFC Dealer Floor Plan Loan Securitization Scheme
EXHIBIT 7.2 Phases of a Series Issued by a Master Trust
EXHIBIT 7.3 Shifting of Master Trust’s Capital Structure between Seller’s Interest and Investor Interests
EXHIBIT 7.4 Seller’s Interest in Receivable Pool, November 2000 through May 2003
EXHIBIT 8.1 Revolving Consumer Credit Outstanding
EXHIBIT 8.2 Net Change in Securitized Consumer Credit (Millions of Dollars)
EXHIBIT 8.3 Sources of Consumer Credit*
EXHIBIT 8.4 Pools of Securitized Assets as a Percent of Total Revolving Consumer Credit
EXHIBIT 8.5 Capital Structure of Credit Card Master Trust over Time
EXHIBIT 8.6 Key Operating Documents
EXHIBIT 8.7 Series Issued and Outstanding from Hypothetical Credit Card Master Trust
EXHIBIT 8.8 Typical Nonsocialist Trust Allocation of Finance-Charge Collections
EXHIBIT 8.9 Percentage of MBNA Master Credit Card Trust II Financed by Seller’s Interest versus Investor Interest (February 1996-June 2001)
EXHIBIT 8.10 Dollar Amount of the Seller’s and Investor Interest in MBNA Master Credit Card Trust II
EXHIBIT 8.11 Dealer Floor Plan Credit versus Credit Card Receivables
EXHIBIT 8.12 MBNA Credit Card Master Note Trust Scheme
EXHIBIT 8.13 MBNA Credit Card Master Note Trust Tranches 1 and 2 of Classes A, B, and C Notes
EXHIBIT 8.14 Principal Credit Card Receivables Funded by the MBNA Credit Card Master Note Trust
EXHIBIT 8.15 Investor Interest of MBNA Master Credit Card Trust II Net of Series 2001-D
EXHIBIT 8.16
EXHIBIT 8.17
EXHIBIT 9.1 Flow of Mortgage Credit Through U.S. Markets
EXHIBIT 9.2 Three Hyperion Fixed Income Funds: Allocation of Assets
EXHIBIT 9.3 Banc of America Funding Corporation, Mortgage Pass-Through Certificates, Series 2003-1
EXHIBIT 9.4 Residential Funding Mortgage Securities I, Inc. Fitch Ratings Transitions Summary 1992-2002
EXHIBIT 9.5 Freddie Mac REMIC investments as of November 30, 2002
EXHIBIT 9.6 The MBS and ABS Exposure of Three Different Intermediate Bond Funds
EXHIBIT 9.7 CMO Investments of the Bond Fund of America at August 31, 1997 and February 28, 2002
EXHIBIT 9.8
EXHIBIT 9.9 Price/Yield Relationship for Bond XXX
EXHIBIT 9.10 Alternative Prepayment/Yield Scenarios
EXHIBIT 9.11 Comparative Portfolio Values of Bonds and lO Securities
EXHIBIT 9.12 Portfolio Values under a Range of Market Rates
EXHIBIT 9.13 Standard Deviations of Portfolio Values
EXHIBIT 9.14 Comparison of Hedged and Alternative Portfolios
EXHIBIT 9.15 Portfolio Values
EXHIBIT 9.16 Comparison of Hedged and Alternative Portfolios
EXHIBIT 9.17 Portfolio Values
EXHIBIT 9.18 Comparison of Hedged and Alternative Portfolios
EXHIBIT 9.19 Yield on FNMA 10% POs with FNMA 10% Pass-Through Certificates
EXHIBIT 9.20 Summary Description of an Inverse lO Security
EXHIBIT 9.21 Inverse IO Coupon Rates under Different Libor Scenarios
EXHIBIT 9.22 Inverse IO Coupon Rate vs. Libor
EXHIBIT 9.23 Expected Cash Flows of Inverse IO Security at Market Rate of 1.3375%
EXHIBIT 9.24 Expected Cash Flows of Inverse IO Security at Market Rate of 2.5%
EXHIBIT 9.25 Expected Cash Flows of Inverse IO Security at Market Rate of 5%
EXHIBIT 9.26 Expected Cash Flows of Inverse 10 Security at Market Rate of 8%
About the Authors
Charles Austin Stone, PhD, and Anne Zissu, PhD, are the founding editors of The Financier (www.the-financier.com), The Securitization Conduit (www.asset-backed.com), and The Arbitrageur, publications providing commentary on corporate finance, risk management, securitization, and related topics. Stone is a professor of finance at Brooklyn College, City University of New York. Zissu is a professor of finance at Temple University in Philadelphia. They have edited several books on finance, and their research has appeared in leading academic journals including the Journal of Derivatives, the Journal of Applied Corporate Finance, and Financial Markets, Institutions and Instruments. They share their time between residences in New York and Paris.
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ISBN-13: 978-1-57660-138-9
The Library of Congress has cataloged the earlier printing as follows:
Stone, Charles A. (Charles Austin)
p. cm.
Includes index.
1. Mortgage-backed securities. 2. Asset-backed financing. I. Zissu, Anne. II. Title.
HG4655. S76 2005
332.63’23--dc22
2004020399
To our children, Ben and Hava Stone— we hope that books will always be as large a part of their life as this one has
And in memory of Ben Zissu and Allan Stone, the grandfathers of Ben and Hava
Acknowledgments
WE WOULD LIKE TO THANK Kathleen Peterson and Tracy Tait at Bloomberg Press. Kathleen had the confidence in our idea and the patience to work with us on the manuscript. Tracy was dedicated and hard-working in bringing the project to successful completion; she has been the closer on this book. We also thank all those at Bloomberg Press—especially Barbara Diez Goldenberg, JoAnne Kanaval, and Mary Macher—who have worked so diligently to make this book more valuable.
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