The ratings of the federal domestic systemically important Canada-based banks -- Bank of Montreal (BMO) , Bank of Nova Scotia (BNS) , Canadian Imperial Bank of Commerce (CM) , National Bank of Canada, Toronto-Dominion Bank (TD) and Royal Bank of Canada (RY) – have been reiterated by Fitch Ratings. The rating agency affirmed Long-Term Issuer Default Ratings (IDR) of BMO, BNS, CM, TD and RY at AA-, while National Bank of Canada's Long-Term IDR was maintained at A+. Further, the rating outlook for all the bank ...