...OVERVIEW + We reviewed Vermont Student Assistant Corp.'s series 2015A, which is backed by a pool of private student loan collateral. + We raised our rating on the bond maturing in June 2019 to '### (sf)' to reflect its short term to maturity and the cash on deposit available for redemption. + At the same time, we affirmed our 'A (sf)' ratings on the other 11 bonds from the series due to sufficient credit enhancement to support the bonds at the current ratings. NEW YORK (S&P Global Ratings) July 27, 2018--S&P Global Ratings today raised its rating on one bond to '### (sf)' and affirmed its 'A (sf)' ratings on 11 bonds from Vermont Student Assistance Corp.'s (VSAC's) student loan revenue bonds series 2015A. The transaction is backed by a pool of private student loans made under VSAC's private loan programs. The upgrade on the bond maturing June 15, 2019, reflects its near-term expected payoff with funds that were set aside in the trust accounts for bond redemptions on their June 2019 legal...