TORONTO (Standard&Poor's) June 8, 2007--Standard&Poor's Ratings Services today said it lowered its short- and long-term counterparty credit ratings on Bank of Montreal (BMO; TSX: BMO) and its related subsidiaries to 'A+/A-1' from 'AA-/A-1+'. At the same time, Standard&Poor's removed the ratings from CreditWatch with negative implications, where they were placed May 17, 2007. The outlook is stable. The downgrade reflects the weaknesses Standard&Poor's found within the bank's risk management functions, the impact of competitive pressures on its domestic and U.S. personal and commercial (P&C) bank, the bank's lower level of risk-adjusted earnings as compared with its North American peers, and smaller retail funding base which incrementally increased the bank's liquidity risk position.