GFL's Strong Q3 Reinforces Buy Thesis with Raised Guidance

What happened

GFL Environmental reported third-quarter 2026 results that beat expectations across revenue, adjusted EBITDA, and adjusted free cash flow. Organic revenue growth accelerated to 7.4%, up 100 basis points sequentially, while underlying adjusted EBITDA margin expanded 115 basis points excluding M&A and diesel impacts. Year-to-date completed acquisitions have added approximately $2 billion in annualized revenue, driving adjusted EBITDA up 26.8% to $678.7 million. The company raised full-year 2026 guidance for the third time, now projecting low-to-mid 20s growth in revenue and adjusted EBITDA and over 30% growth in adjusted free cash flow. These results align with the master report's BUY thesis, which emphasized GFL's delevered solid-waste platform, margin durability, and strong cash generation.

Implication

The solid waste business continues to demonstrate resilience, with pricing and disposal internalization driving margin expansion and organic growth acceleration. The raised guidance reflects both M&A contributions and organic momentum, justifying the current valuation despite GAAP losses. Adjusted free cash flow growth of over 30% highlights the company's ability to convert earnings into cash, supporting deleveraging and buybacks. Key risks from commodity volatility and acquisition integration remain, but current trends are favorable, and management's repeated guidance raises reduce downside concerns. Investors should monitor margin durability and leverage, but the thesis remains intact with potential for further upside.

Thesis delta

The BUY thesis is reinforced by these results. Q3 outperformance across revenue, EBITDA, and FCF, along with accelerating organic growth, confirms the strength of the core solid waste platform. The third guidance raise signals management's confidence in continued momentum, reducing the risk of downside from commodity fluctuations or integration slippage.