Union Pacific Corporation (NYSE:UNP) is one of the 12 most profitable dividend stocks to buy in 2026. However, the US Surface Transportation Board rejected its proposed merger with Norfolk Southern, causing near-term pressure on UNP shares. The board cited missing projections and competitive impact details in the application, leaving room for resubmission.

The STB sent Union Pacific’s $85 billion merger proposal back for revision, stating it lacked required information. This decision comes as regulators reconsider competition standards under stricter merger rules. The board emphasized the incomplete nature of the December application, specifically noting missing market share and competitive impact projections.

Canadian National also criticized the application, stating it lacked key competitive disclosures necessary for stakeholders to properly assess the merger’s impact. Union Pacific and Norfolk Southern argued their merger would enhance service reliability, shift freight to rail, and benefit shippers and union jobs. UNP operates a vast rail network across 23 states in the US.

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Read more at Yahoo Finance: Union Pacific (UNP) Faces Near-Term Pressure After Merger Setback, Susquehanna Says