
May 22 (Reuters) - Canada's main stock index opened lower on Thursday, led by losses in energy shares, as investor caution grew over potential debt burden in the U.S. following the passage of President Donald Trump's tax bill in the House of Representatives.
At 9:33 a.m. ET (1333 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was down 0.2% at 25,783.39 points.