CHAPTER 19
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CHAPTER 19. The Secondary Mortgage Market: Pass-Through Securities. Secondary Mortgage Market. Allows originators to replenish funds Facilitates geographic flow of funds Provides an investment option for savers Early buyers of mortgages Mortgage companies and thrifts
CHAPTER 19
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CHAPTER19 The Secondary Mortgage Market: Pass-Through Securities
Secondary Mortgage Market • Allows originators to replenish funds • Facilitates geographic flow of funds • Provides an investment option for savers • Early buyers of mortgages • Mortgage companies and thrifts • FHA insurance and VA guarantees • Minimum underwriting standards
Secondary Mortgage Market • 1954 Charter Act: FNMA • Enhance secondary market operations • FHA and VA mortgages • Manage prior direct loans • Manage special assistance programs • FNMA transforms into a private organization • FNMA issues securities
Secondary Mortgage Market • HUD Act 1968: GNMA • GNMA manages and liquidates FNMA loan portfolio • Special assistance functions • Guarantee timely payment of principal and interest for FHA-VA mortgage pools • Eliminated any default delay in payments to investors
Secondary Mortgage Market • Emergency Home Finance Act 1970: FHLMC • Provide a secondary market for conventional loans • Allowed FNMA to purchase conventional mortgages • FHLMC allowed to purchase FHA and VA mortgages • Fannie Mae and Freddie Mac compete for all mortgage loans
Secondary Mortgage Market • Operation • Direct Sale Programs • Mandatory Commitment • Optional Delivery • Mortgage-Related Security Pools • Securitization
Secondary Mortgage Market • Mortgage-Backed Bonds • Issuer retains ownership of mortgages • Mortgages held in trust • Fixed coupon rate • Specific maturity • Over collateralization • Mark to market
Secondary Mortgage Market • Mortgage-Backed Bonds • Investment Rating • Mortgage Quality • Geographic Diversification • Interest Rates on Mortgages • Prepayment Probability • Over collateralization • Appraised value and debt coverage ratio if commercial mortgages
Secondary Mortgage Market • Mortgage-Backed Bonds • Example 19-1: Mortgage Bond Valuation • 20-year to maturity • Par value of $10,000 • 10.5% annual coupon. • At issue, bond market investors require an 11% interest rate. • What is the initial price of the bond?
Secondary Mortgage Market • Mortgage-Backed Bonds • Example 19-1: = $10,000 = 20 = .105 x $10,000 = $1,050 = 11 = $9,601.83 FV n PMT i PV CPT
Secondary Mortgage Market • Mortgage-Backed Bonds • In Example 19-1, what would be the price of the bond 5 years later if investors required a 12% return? • N is 15 years • I is 12%
Secondary Mortgage Market • Mortgage-Backed Bonds • Example 19-1: = $10,000 = 15 = $1,050 = 12 = $8,978.37 FV n PMT i PV CPT
Secondary Mortgage Market • Mortgage-Backed Bonds • Zero-Coupon Bond • The only cash flow to an investor is a lump sum at maturity • No interim coupon payments • Also called “deep discount” bonds • Analysis is just computing the present value of a lump sum
Secondary Mortgage Market • Mortgage Pass-Through Securities • Ownership interest in a pool of mortgages • Trustee is owner of the mortgages in the pool • Principal & interest are passed through • Servicing & guarantee fees
Secondary Mortgage Market • Mortgage Pass-Through Securities • Issuers & guarantors • Default insurance • Payment patterns and security • Coupon rate and interest rates • Seasoned mortgages
Secondary Mortgage Market • Mortgage Pass-Through Securities • Number of mortgages • Geographic distribution • Borrower characteristics • Loan prepayment • Nuisance calls
Secondary Mortgage Market • General Pricing of MPTs • Interest Rate Risk • Default Risk • Risk of Delayed Payment of Principal and Interest • Prepayment Risk
Secondary Mortgage Market • General Pricing of MPTs • Coupon Rate • Yield to maturity • Servicing Fee • Weighted Average Coupon & Maturity • Stated Maturity Date • Payment Delays • Pool Factors
Secondary Mortgage Market • Example 19-2: • A mortgage pool consists of the following: • $500,000 of 30-year 7% Fixed Rate Mortgages • $200,000 of 29-year 6.5% Fixed Rate Mortgages • $300,000 of 28-year 6% Fixed Rate Mortgages • What is the weighted average coupon and average maturity of the mortgage pool? If there is a servicing fee of .5%, what is the quoted maturity and quoted coupon rate?
Secondary Mortgage Market • Example 19-2: • Quoted Maturity = 30 Years • Quoted Coupon Rate = 6% - .5% = 5.5%
Secondary Mortgage Market • Pricing Issues • Mortgage-Backed Bonds • Specified maturity • Specified coupon payment and face value • Pricing methodology is relatively straight forward • MPTs • Can not define a specific maturity • Can not define specific cash flows • Pricing is based on prepayment assumptions
Secondary Mortgage Market • Prepayment Assumptions • Average Maturity Assumption • Constant Prepayment Rate Assumption • FHA Prepayment Experience • PSA Prepayment Model • Convexity • Price Compression