The S&P/TSX Composite Index edged 0.2% higher to close at 33,197 on Tuesday as energy sector gains offset broader weakness ahead of a critical geopolitical deadline. Gains were led by Imperial Oil which climbed 2.3% and Canadian Natural Resources which rose 1.5% as crude futures rose following US military strikes on Iranian targets. Financial heavyweights showed resilience with RBC gaining 0.5% and TD Bank adding 1.1% even as Scotiabank slipped 0.6% amid persistent stagflation concerns. Tech stocks remained a primary drag on the index as Shopify fell 1.4% and Constellation Software dropped 2.6%. Consumer discretionary and telecommunications shares also faced pressure with Rogers Communications sliding 3.5% and Alimentation Couche-Tard declining 0.9% as investors parsed the implications of Tehran rejecting a US-mediated ceasefire proposal.