TORONTO, May 1 (Reuters) - Canada's main stock index was little changed at the open on Thursday after a decline in shares of Bombardier Inc was offset by a jump in Catamaran Corp as investors sought to digest a stream of corporate earnings reports. The Toronto Stock Exchange's S&P/TSX composite index was up 8.80 points, or 0.06 percent, at 14,660.67 shortly after the open. (Reporting by John Tilak; Editing by James Dalgleish)
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