Aug 28 (Reuters) - Canada's main stock index opened lower on Wednesday due to losses in energy and mining stocks, while investors digested upbeat earnings from major domestic lenders and awaited Nvidia's quarterly earnings.
At 9:31 a.m. ET (13:31 GMT), the Toronto Stock Exchange's S&P/TSX composite index (.GSPTSE), was down 74.67 points, or 0.32%, at 23,185.29.
Reporting by Nikhil Sharma in Bengaluru; Editing by Vijay Kishore