(Updates with sectors)
Sept 24 (Reuters) - Canada’s main stock index fell at the open on Thursday as a second wave of coronavirus infections dented optimism around an economic revival, while the government’s pledge to boost public spending had little effect on investor sentiment.
* At 9:45 a.m. ET (1345 GMT), the Toronto Stock Exchange’s S&P/TSX composite index was down 51.15 points, or 0.32%, at 15,765.96.
* The Canadian dollar weakened to a seven-week low against the greenback as investors worried about another global economic hit from the coronavirus pandemic and Ottawa’s pledge of further economic aid failed to lift the currency.
* The energy sector dropped 1.6% as U.S. crude prices were down 0.3% a barrel, while Brent crude lost 0.4%.
* The financials sector slipped 0.3%. The industrials sector fell 0.5%.
* The materials sector, which includes precious and base metals miners and fertilizer companies, lost 0.1% as gold futures fell 0.5% to $1,851.5 an ounce.
* On the TSX, 38 issues were higher, while 180 issues declined for a 4.74-to-1 ratio to the downside, with 20.45 million shares traded.
* The largest percentage gainers on the TSX were BlackBerry Ltd, which jumped 6.7% after it beat earnings estimates and InterRent Reit, which rose 2%.
* Aurora Cannabis fell 5.9%, the most on the TSX, while the second biggest decliner was Ballard Power Systems , down 5.3%.
* The most heavily traded shares by volume were Just Energy Group, BlackBerry Ltd and Bombardier Inc .
* The TSX posted two new 52-week highs and one new low.
* Across all Canadian issues there were five new 52-week highs and 10 new lows, with total volume of 49.36 million shares. (Reporting by Shashank Nayar in Bengaluru; Editing by Ramakrishnan M and Shailesh Kuber)
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