Macquarie Group had its 'A-/A-2' long- and short-term credit ratings assigned by S&P affirmed and the outlook revised to stable from negative. Macquarie Bank's 'A/A-1' ratings were also affirmed and the outlook revised to stable.The revised outlook reflects S&P's expectation that Macquarie will maintain supportive capital and a satisfactory earnings profile in the medium term and manage funding and liquidity challenges. S&P also expects the group's risk appetite will not increase significantly and any significant business expansion will be in areas where MQG has expertise and experience.