Waste Connections (WCN) Q4 2025 earnings review
Margins Expand Despite Volume Headwinds
Waste Connections delivered a textbook execution quarter, expanding Adjusted EBITDA margins by 110 basis points to 33.5% despite a 2.7% decline in solid waste volumes. While revenue growth (+5.0%) moderated due to lower commodity prices and intentional contract shedding, the company's pricing power (6.4% core price) and operational improvements drove an 8.7% jump in Adjusted EBITDA. The 2026 outlook calls for continued 'outsized' margin performance and double-digit free cash flow growth, signaling that internal cost controls are successfully decoupling earnings from sluggish macro volumes.
🐂 Bull Case
Core pricing of 6.4% in Q4 continues to significantly outpace cost inflation. This spread is the primary engine for the 110bps margin expansion, proving the company can grow earnings even when volumes are negative.
Guidance for 2026 projects Adjusted Free Cash Flow of $1.40-$1.45 billion, representing 11-15% growth. This acceleration allows for continued aggressive M&A and shareholder returns.
🐻 Bear Case
Solid waste volumes fell 2.7% in Q4, continuing a multi-quarter trend of contraction (Q3: -2.7%, Q2: -2.6%, Q1: -2.8%). Reliance on price hikes to offset shrinking volumes works until customer churn accelerates.
Recycled commodity values and RINs remain volatile, dragging on revenue growth. While management has mitigated the margin impact, any further collapse in commodity pricing would pressure the 2026 targets.
⚖️ Verdict: 🟢
Bullish. Waste Connections demonstrated exceptional operational control, translating moderate top-line growth into significant margin expansion. The persistent volume weakness is a concern, but the company's ability to drive price and cut costs justifies a premium valuation.
Key Themes
Core Pricing Power
Pricing remains the dominant driver of results. Core price was 6.4% in Q4 and 6.5% for the full year 2025. This successfully offset inflationary pressures and volume losses. The consistency of this metric (ranging 6.3% to 6.9% throughout 2025) underscores the defensive nature of the business model.
Operational Efficiency & Employee Retention
Management credited 'multi-year lows' in employee turnover and safety incident rates for driving cost savings. These improvements in human capital are directly translating to the bottom line, enabling the 110 bps margin expansion seen in Q4 despite the revenue headwinds.
Environmental Impairments
Q4 results included $39.1 million in impairments and other items primarily related to an environmental liability at an operating facility. While significantly lower than the $602 million hit in the prior year (Chiquita Canyon), these recurring environmental charges dampen GAAP earnings quality and require monitoring.
M&A Contribution
The company completed acquisitions representing ~$330 million in annualized revenue during 2025. With leverage at 2.75x and strong cash flow, the balance sheet retains significant capacity for further consolidation in a fragmented market.
Commodity Headwinds
Recycling revenue dropped 3.7% YoY in Q4 ($57.7M vs $59.8M), and surcharge revenue was flat/negative (-0.5% internal growth impact). This volatility creates a drag on the top line that the core solid waste business must continually subsidize.
Other KPIs
Accelerating. Margin expanded 110 basis points YoY, accelerating from the +10 bps YoY expansion seen in Q3. This beat management's prior expectations and sets a high bar for 2026 execution.
Accelerating. E&P revenue grew 17% YoY ($164M vs $140M), significantly outpacing the corporate average. This segment is benefitting from increased activity or acquisition layering, providing a growth kicker beyond the core municipal waste business.
Stable/Growing. Operating cash flow grew 8.3% YoY. Management expects this to accelerate to ~$2.65-$2.70 billion in 2026, driven by earnings growth and working capital management.
Guidance
Stable growth. Implies ~4.8% YoY growth at the midpoint. This is consistent with the current 5% growth rate but relies heavily on price given the flat/negative volume backdrop.
Accelerating (in nominal dollars). Implies ~6% growth YoY. The implied margin at the midpoint is ~33.3%, which suggests margins will remain elevated near current Q4 levels but may not expand significantly further from the 33.5% Q4 exit rate.
Accelerating. Projects 11.2% to 15.1% YoY growth, significantly outpacing revenue and EBITDA growth. This highlights the company's focus on converting earnings to cash efficiency.
Key Questions
Volume Turnaround Timing
Solid waste volumes have been negative for over a year (-2.7% in Q4). When does management expect the 'shedding' of unprofitable contracts to plateau, and when will volume turn positive?
Pricing Sustainability
With inflation moderating, can WCN maintain >6% core pricing in 2026 without accelerating customer churn, especially given the current volume weakness?
Environmental Liability Outlook
After another $39M impairment in Q4 following the massive charges in 2024, are all legacy environmental liabilities now fully reserved, or should investors expect continued 'one-time' adjustments?