July 28 (Reuters) - Canada's commodity-heavy main stock index retreated from a record high on Monday, pressured by mining shares, while investors assessed a trade deal between the U.S. and the European Union ahead of the August 1 tariff deadline.
At 9:31 a.m. ET (1331 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was down 0.07% at 27,474.83 points.