March 1 (Reuters) - Canada's main stock index opened higher on Monday, as energy and materials stocks tracked gains in commodities, while sentiment was further lifted by optimism around an economic recovery led by COVID-19 vaccine rollout and a U.S. stimulus package.
* At 9:30 a.m. ET (14:30 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was up 172.51 points, or 0.96%, at 18,232.77.