U.S. satellite radio company Sirius XM Radio Inc.'s EBITDA generation and debt leverage have improved, largely as a result of subscriber growth and rising EBITDA margins. We believe progress in credit quality is sustainable. We are raising our corporate credit rating on the company to 'BB' from 'BB-'. The stable rating outlook reflects our view that a continued recovery in auto sales will support revenue growth and maintain credit measures appropriate for the 'BB' rating over the intermediate term. NEW YORK (Standard&Poor's) Oct. 26, 2011--Standard&Poor's Ratings Services raised its corporate credit rating on New York City-based Sirius XM Radio Inc. and subsidiary XM Satellite Radio Inc. to 'BB' from 'BB-'. The rating outlook is stable. The