CNI's March Grain Record Confirms Operational Tailwind, Fails to Offset Structural Risks

What happened

Canadian National Railway set a March grain record by moving 2.96 million tonnes, contributing to its best-ever first-quarter performance as reported by Zacks. This aligns with the DeepValue report's base case, where grain volumes are a key tailwind to offset tariff-driven weakness in segments like intermodal and automotive. However, the report emphasizes that CNI's mid-single-digit EPS growth relies on aggressive cost cuts and capex normalization, not volume expansion, amid flat overall revenue-ton-mile growth. Regulatory overhangs, such as potential safety mandates from the TSB Montreal collision report, could force capex back above C$3.4B, undermining the free cash flow thesis. Thus, while the grain strength validates operational resilience, it does not mitigate the broader risks of capex escalation or persistent trade headwinds.

Implication

The grain performance supports CNI's ability to execute on its 2025–26 Grain Plan, potentially bolstering near-term earnings and service metrics. However, at a P/E of ~19x, the stock already prices in mid-single-digit EPS growth, leaving little margin for error if capex or tariffs worsen. Key risks remain, including regulatory mandates that could increase 2026 capex above the guided C$2.8B, compressing free cash flow and derailing the normalization thesis. Investors must monitor upcoming Q4 2025 results and regulatory developments for signs of capex creep or further volume erosion. Consequently, this news does not alter the recommended 'WAIT' stance, as a more attractive entry point near $88 is needed to account for these uncertainties.

Thesis delta

The March grain record confirms the grain-led volume assumption in the base case but does not shift the investment thesis. The core thesis remains unchanged: CNI offers a narrow risk-reward at current prices, with upside capped by regulatory risks and downside protected only by cost discipline. No rating change is warranted; investors should await a pullback below $90 or clearer evidence on capex normalization.