1. [90 pts] a. [70] Stratify the mortgages below for a deal coupon of 3.5%. b. [10] What is the face value of the WAC PO, and what is the deal face? c. [10] What is the initial) notional principal of the WAC IO, and what is its (initial) coupon rate? Coupon % 3.685 3.75 3.875 4.00 Net Note Rate % 3.4185 3.4816 3.613 3.7610 Cohort Bal ($mln) 70 120 130 60 1. [90 pts] a. [70] Stratify the mortgages below for a deal coupon of 3.5%. b. [10] What is the face value of the WAC PO, and what is the deal face? c. [10] What is the initial) notional principal of the WAC IO, and what is its (initial) coupon rate? Coupon % 3.685 3.75 3.875 4.00 Net Note Rate % 3.4185 3.4816 3.613 3.7610 Cohort Bal ($mln) 70 120 130 60