Executive Summary / Key Takeaways
- CNI has completed a multi-year capital investment cycle that transformed it from having the industry's oldest locomotive fleet to middle-of-the-pack while expanding West Coast capacity by 25%, creating a lean, efficient network primed for operating leverage when volumes recover.
- Despite absorbing over $350 million in tariff-related revenue headwinds during 2025, the company delivered 7% EPS growth and improved its operating ratio by 120 basis points to 61.7%, demonstrating that productivity gains and cost discipline are helping mitigate trade uncertainty.
- Management has shifted to a "flattish" volume outlook for 2026 while guiding for EPS growth to "slightly exceed" that pace, signaling confidence that the productivity muscles activated over the past 18 months will drive margin expansion even without volume tailwinds.
- Capital allocation has pivoted: 2026 capex drops $500 million to $2.8 billion, while the company will temporarily increase leverage to 2.7x to fund aggressive share repurchases, reflecting management's view that the stock is undervalued and the business can generate higher returns through financial engineering than through network expansion.
- The critical variable for investors is timing: if tariff uncertainty resolves and volumes recover in late 2026 or 2027, CNI's built-in operating leverage could drive double-digit EPS growth, but persistent trade headwinds risk requiring further cost cuts to offset weak demand.
Setting the Scene: The Railroad That Connects a Continent
Canadian National Railway Company, incorporated in 1919 and headquartered in Montreal, operates a 19,500-mile rail network that functions as the backbone of North American trade, connecting Canada's Eastern and Western coasts with the U.S. Midwest and Gulf Coast. This isn't just a collection of tracks; it's a strategic infrastructure asset that originates over 85% of its traffic and originates-terminates more than 65% of its business—more than any Class I railroad. This high origination percentage gives CNI pricing power and operational control that peers lack, allowing it to capture value across the entire transportation chain rather than just collecting tolls on through traffic.
The company makes money by moving a diversified commodity mix across three segments: Bulk (grain, coal, potash), Intermodal (containerized freight), and Merchandise (petroleum, forest products, metals, automotive). This diversification provides resilience when any single sector weakens, though it exposes CNI to the full spectrum of macroeconomic pressures, from housing-driven forest products demand to trade-policy-driven intermodal flows. The current industry structure favors railroads with unique geographic advantages, and CNI's crown jewel is Prince Rupert, British Columbia—the fastest, flattest route from Asia to the North American Midwest, free from port-city congestion and increasingly leveraged through the Gemini alliance with Maersk (MAERSK-B).
CNI sits in an oligopoly where regulatory barriers, massive capital requirements, and network effects create nearly insurmountable moats. The company's strategic positioning has evolved dramatically since 2017, when it began modernizing what was then the industry's oldest locomotive fleet. By 2025, that fleet reached middle-of-the-pack age while availability hit an all-time high of 92.5% in Q4. The company has essentially completed a heavy capital refresh cycle just as it shifts to harvest mode, meaning depreciation will begin falling while asset productivity rises—a classic setup for margin expansion.
Technology, Network Investments, and Strategic Differentiation
CNI's competitive advantage rests on three pillars: network geometry, operational precision, and capacity timing. The Prince Rupert gateway represents a structural moat that competitors cannot replicate. The port offers 30% faster transit times to the Midwest than Vancouver or U.S. alternatives, lacks urban congestion, and now hosts the Gemini service that drove 30% volume growth in Q3 2025. As shippers seek supply chain resilience amid trade uncertainty, Prince Rupert's reliability becomes more valuable, allowing CNI to win share even in a flat market. The "can export facility" and IntermodeX transloading investments ramping up in late 2026 will further embed customers into this ecosystem.
The company's scheduled operating model, implemented since 2022, has fundamentally changed how the railroad runs. Rather than moving trains when they're full, CNI now operates with railroad-defined schedules that improve velocity, reduce yard dwell, and eliminate non-value-added costs. The results show in the numbers: T&E labor cost per GTM improved 6% in 2025 while GTMs rose 1%, and contractor spend was cut by $120 million year-to-date through Q3. This demonstrates that productivity gains are structural, not cyclical. When volumes return, these efficiency gains will flow directly to the bottom line rather than being consumed by operational chaos.
Capacity investments completed in 2025 tell a story of strategic timing. The Edson Sub is now 63% double-tracked (up from 40%), creating 6-7 trains of additional capacity in a critical corridor. West Coast throughput increased 25% between Edmonton and Jasper and 20% to Vancouver and Prince Rupert. The EJ&E network enhancements improved Chicago fluidity and reduced crew starts to Western Canada. CNI built capacity ahead of demand during a volume trough, positioning it to capture share when trade flows normalize without requiring incremental capital spending. This is the definition of operating leverage: fixed costs are sunk, so incremental revenue drops directly to operating income.
Financial Performance: Productivity Offsetting Headwinds
CNI's 2025 financial results serve as evidence that the operating leverage thesis is working despite external pressures. Revenue grew 2% in Q4 on 4% more RTMs and 3% more carloads, while adjusted diluted EPS jumped 14% year-over-year. The full-year operating ratio improved 120 basis points to 61.7%, with Q4 hitting 60.1%—the best quarterly performance of the year. These gains came while tariffs and trade uncertainty impacted revenue by over $350 million, forest products faced doubled duties, and metals shipments declined due to mine closures and drilling slowdowns. The fact that margins expanded amid this adversity suggests the cost structure transformation is effective.
Segment dynamics reveal the company's resilience and vulnerabilities. Grain was a standout, with CNI setting an all-time annual record for Western Canadian grain shipments in 2025. Q4 saw record tonnage for four consecutive months, and Q3 Canadian grain volumes rose 6% while U.S. volumes surged almost 30%. Grain is a regulated commodity with pricing caps, yet CNI still drove volume growth through service excellence. The pricing for regulated grain dropped to 1.7% for the 2025-2026 crop versus nearly 6% prior year, yet the company maintained profitability through efficiency.
Intermodal presents a more complex picture. International intermodal revenues rose 13% in Q4, benefiting from easier comparisons after 2024's port labor disruptions and Gemini gains at Prince Rupert. However, the segment faces near-term headwinds: Q1 2026 will be challenged by increased blank sailings and an inventory "air pocket," with management expecting slow growth in the first half before Gemini continues its ramp. Domestic intermodal, meanwhile, grew 6% in Q4 and 18% in Q3, leveraging strong service for share gains. This shows CNI can win in domestic markets where it controls the service proposition while international remains influenced by macro factors.
Merchandise segments tell a tale of tariff impacts and selective strength. Petroleum & Chemicals grew across all segments in Q4, with NGL volumes up 9% driven by Prince Rupert exports. Management expects this momentum to continue in 2026, benefiting from new fractionators and crude expansion projects. Forest Products, conversely, remained under pressure due to weak demand and tariffs that more than doubled duties on Canadian lumber. Metals & Minerals suffered from iron ore mine closures and frac sand drilling slowdowns. Automotive was flat. CNI's commodity diversification provides ballast, but the mix shift toward lower-margin domestic moves creates a headwind that efficiency gains must overcome.
The balance sheet and cash flow generation validate the capital allocation pivot. CNI generated over $3.3 billion in cash flow in 2025, up 8% from 2024, with free cash flow conversion at 70%. The company repurchased nearly 15 million shares for approximately $2 billion and raised its dividend for the 30th consecutive year. For 2026, capex drops to $2.8 billion—a $500 million reduction—while management plans a temporary leverage increase to 2.7x to fund additional buybacks, targeting a return to 2.5x by 2027. This signals that management sees higher returns in returning capital than in network expansion, a mature-capital-cycle mindset that typically precedes sustained margin expansion.
Outlook and Execution: The Volume Leverage Bet
Management's 2026 guidance framework reveals both confidence and caution. The base case calls for flattish volumes compared to 2025, assuming current tariff levels remain, with EPS growth "slightly exceeding" volume growth. This outlook embeds an assumption that the 18 months of productivity gains will continue to drive margin expansion even without revenue tailwinds. As CEO Tracy Robinson stated, the company is building an engine with strong operating leverage and cash generation that will accelerate earnings as volumes improve.
The guidance acknowledges several headwinds: lower capital credits will impact results by approximately $100 million, the effective tax rate will rise to 25-26% (another ~$100 million impact), and the company will lap significant other income gains from 2025 (close to $100 million). Q1 2026 is expected to be the toughest quarter, with improvement over the course of the year. Management is setting a baseline that could be exceeded if volumes stabilize, especially given the 250 basis point OR improvement in Q4.
Key growth drivers for 2026 and beyond provide visibility into where leverage will materialize. Canadian and U.S. grain are expected to remain strong, supported by a record Canadian crop and improving canola trade conditions with China. The petroleum and chemicals segment should benefit from Phase 2 of the Greater Toronto Area fuel terminal, new fractionators, and crude oil expansion projects, plus easier comparisons as extended refinery turnarounds won't recur. Prince Rupert's Gemini service will continue ramping, with the can export facility and IntermodeX transloading adding incremental revenue in late 2026 and 2027. These are completed or near-completed assets waiting for volume, meaning incremental revenue should flow at high margins.
The Milton project in Toronto, expected to complete by mid-2027, represents a longer-term intermodal growth driver. Meanwhile, the company is actively engaged in industry consolidation discussions, having filed objections to the proposed merger between Union Pacific (UNP) and Norfolk Southern (NSC). As Robinson noted, the concessions required to achieve this will be significant, and CNI intends to pursue concessions that will protect and improve competition. While the merger could create a more formidable competitor, the regulatory process may force asset divestitures that CNI could acquire on attractive terms.
Risks: What Can Break the Thesis
The most material risk is that tariff uncertainty and trade policy volatility persist longer than expected, keeping volumes depressed through 2026 and into 2027. The USMCA review creates particular uncertainty regarding the rules under which customers will be investing in the future. If the review results in more restrictive trade terms, CNI's cross-border franchise could face structural headwinds that productivity gains cannot fully offset. The $350 million revenue impact in 2025 demonstrates the magnitude of this risk.
Mix headwinds pose a second threat. The shift from high-margin forest products and metals traffic to shorter-haul domestic moves compresses revenue per RTM. While CNI is mitigating this by winning intra-Canada and intra-U.S. business, the net effect is a headwind that requires even greater efficiency gains to maintain margins. If forest products mills continue closing and iron ore fundamentals remain weak, the mix shift could intensify, creating a situation where cost cuts merely hold the line rather than drive expansion.
Labor relations remain a wildcard. The 2024 ILWU strike and port disruptions highlighted CNI's exposure to external labor actions, while internal workforce management has been aggressive—entering Q4 with 800 furloughs and exiting with 650. While this flexibility supports productivity, it also risks service degradation if volume returns faster than expected. Management is selectively adding resources for Grain and winter readiness, but a sudden demand surge could strain the lean operating model.
The temporary leverage increase to 2.7x, while manageable, introduces financial risk if earnings disappoint. Management's commitment to return to 2.5x by 2027 assumes the productivity story plays out as planned. If volumes remain flat and mix headwinds intensify, debt service could constrain capital returns, undermining a key pillar of the investment case.
Competitive Context and Valuation
CNI trades at a discount to North American railroad peers, reflecting its exposure to trade uncertainty and slower volume growth. At $99.10 per share, the stock fetches 17.9 times trailing earnings and 11.5 times EV/EBITDA, compared to Canadian Pacific Kansas City (CP) at 23.8x P/E, UNP at 19.5x, CSX (CSX) at 25.0x, and NSC at 21.8x. The 2.7% dividend yield exceeds most peers, while the 24.6x price-to-free-cash-flow ratio translates to a 4.1% free cash flow yield—attractive for a business with CNI's moat characteristics.
This valuation gap suggests the market is pricing CNI as a slower-growth railroad, potentially overlooking the operating leverage built into the system. The discount provides downside protection while creating potential for multiple expansion as the productivity story becomes clearer. Management's aggressive share repurchases—$2 billion in 2025 and a new 24 million share authorization—indicate they view the stock as undervalued relative to intrinsic value.
Comparing operational metrics, CNI's 61.7% operating ratio lags CP's 55.9% but improved 120 basis points in 2025, a faster pace than most peers. The company's 22.2% return on equity and 7.7% return on assets are solid, reflecting the recent heavy capital investment phase. As depreciation benefits from the completed fleet modernization kick in and capex declines, these returns should improve. The balance sheet, with debt-to-equity at 1.0x and net leverage around 2.3x, provides flexibility for the temporary increase to 2.7x while remaining conservative relative to peers.
Conclusion: The Waiting Game with Leverage
CNI has engineered a classic operating leverage story: complete the heavy capital spending, build efficiency into the cost structure, then wait for volumes to return. The 2025 results show 14% EPS growth in Q4 despite tariff headwinds, a 60.1% operating ratio, and record grain shipments, demonstrating that the railroad can expand margins even in adversity. Management's decision to cut capex and increase leverage for buybacks signals conviction that the earnings power of the business is underappreciated.
The central thesis hinges on trade policy resolution and volume recovery timing. If tariff uncertainty clears and North American industrial production accelerates, CNI's built-in capacity and productivity gains will drive earnings growth. If uncertainty persists, the company can likely maintain mid-single-digit EPS growth through continued cost discipline. For patient investors, the current valuation provides a margin of safety while the operating leverage engine idles, ready to accelerate when the macro environment allows.
