CANADA STOCKS-TSX opens lower as materials shares slip
TORONTO, May 16 (Reuters) - Canada's main stock index opened lower on Friday as a decline in the prices of some commodities weighed on the materials sector and investors remained nervous about the lack of market catalysts. The Toronto Stock Exchange's S&P/TSX composite index was down 22.72 points, or 0.16 percent, at 14,566.17 shortly after the open. (Reporting by John Tilak; Editing by James Dalgleish)
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