Oct 21 (Reuters) - Energy stocks dragged Canada’s main stock index at the open on Wednesday, as a surprise build-up in U.S. crude stockpiles stoked concerns about a supply glut, while rising COVID-19 cases globally caused demand worries.
* At 9:30 a.m. ET (13:30 GMT), the Toronto Stock Exchange’s S&P/TSX composite index was down 42.54 points, or 0.26%, at 16,230.72. (Reporting by Amal S in Bengaluru; Editing by Ramakrishnan M.)
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