May 27 (Reuters) - Canada’s main stock index rose at open on Thursday as better-than-expected quarterly profits from major lenders helped drive gains in most sectors, while shares of energy producers shrugged off a decline in oil prices. * At 9:32 a.m. ET (13:32 GMT), the Toronto Stock Exchange’s S&P/TSX composite index was up 17.77 points, or 0.09%, at 19,763.24. (Reporting by Shivani Kumaresan in Bengaluru; Editing by Vinay Dwivedi) Our Standards: The Thomson Reuters Trust Principles.