OVERVIEW Illinois Finance Authority's issuance is an ABS transaction backed by private student loans made under Midwestern University Foundation's loan program to students pursuing graduate and professional degrees enrolled at Midwestern University's Illinois campus. We assigned our preliminary ratings to the class senior series 2015A and subordinate series 2015B bonds. The preliminary ratings reflect our view of the transaction's credit enhancement, expected total parity, and legal structure, among other factors. NEW YORK (Standard&Poor's) June 17, 2015--Standard&Poor's Ratings Services today assigned its preliminary ratings to Illinois Finance Authority's (Midwestern University Foundation) $15 million graduate and professional student loan program revenue bonds series 2015 (see list). The note issuance is an asset-backed securities transaction backed by private student