Standard and Poor's Ratings Services raised its ratings on Citigroup Global Markets ROCs/ROLs II-R Trust's series 11837, relating to Wisconsin Health&Educational Facilities Authority's (Ascension Health Senior Credit Group) revenue bonds series 2010E to 'AA+/A-1 and 'AA+' from 'AA/A-1' and 'AA', respectively. The liquidity facility provided by Citibank N.A. supporting the ROCs is extended until Sept. 15, 2012. This action follows Standard&Poor's upgrade of its rating on the underlying bonds to 'AA+' from 'AA'. The long-term component of the rating on the ROCs and ROLs is based on the rating on the underlying bonds (CUSIP #s: 97710BST0, 97710BSU7). The short-term component rating on the ROCs is based on the liquidity facility provided by Citibank N.A. SEC Rule