Tuesday's record TSX close was built on technology strength, led by Celestica and Constellation Software, while energy and gold mining names such as Cenovus and Canadian Natural Resources lagged behind. Overnight, oil reversed sharply higher after Iran's missile attack on US forces, a level that would have flipped Tuesday's sector leadership had it arrived a single trading day earlier. The mismatch leaves Wednesday's open testing whether energy can catch up to a record the sector had no part in.
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