Waste Management, Inc. (WM) Cash Flow Statement

The persistent gap between net income and operating cash flow appears structural rather than cyclical: depreciation of $735-806M per quarter in the last four periods almost fully explains the roughly $780M average quarterly OCF premium over earnings, which is consistent with a fixed-asset-heavy disposal network rather than aggressive accruals. However, the earlier 2024 quarters showed tighter ratios of 1.70-2.53x, and the working capital line has oscillated between a $237M drag and a $237M contribution, so investors should not treat the current stability as guaranteed. The absence of any large non-cash add-back beyond D&A suggests the conversion quality is genuine, though it also means any future impairment or ARO re-measurement would swing the ratio sharply.

The FCF improvement is notable because it coincided with decelerating revenue growth (19.0% in 2025Q2 falling to 6.3% in 2026Q3), implying the trajectory is powered by the capex cycle normalizing post-Stericycle rather than top-line momentum; that distinction matters because a capex-driven FCF recovery is less durable than one driven by pricing. FCF of $983M in 2026Q3 also comfortably covers the $377M dividend and $580M buyback, suggesting self-funding capacity exists even at trough seasonal quarters. The 2025Q1 trough of $377M (6.3% margin) serves as a reminder that seasonal working capital outflows of $237M can temporarily mask underlying generation, so the run-rate should be judged on trailing four quarters rather than any single print.

The halving of capex intensity from the 2024Q4 peak of $1.1B (which coincided with the $6.7B Stericycle acquisition quarter) suggests the heavy investment phase in landfill cells and RNG infrastructure may be moderating, but the data alone cannot separate maintenance from growth capex, so the composition warrants verification in segment disclosures. With D&A now persistently above capex in three of the last four quarters, there is a plausible interpretation that WM is harvesting cash from an aging asset base rather than expanding it; if sustained, that pattern would eventually pressure the disposal capacity that underpins the internalization advantage. Conversely, the compression could reflect simply the completion of Stericycle-related integration spend, in which case capex intensity may re-normalize toward the 11-12% range seen in mid-2024 and mid-2025.

The timing of the buyback restart—following the $6.7B debt-funded Stericycle acquisition in 2024Q4 and a full year of near-zero repurchase activity—suggests management is deliberately deleveraging before returning capital, a sequencing that implies the balance sheet is being prioritized over shareholder returns through the integration period. Dividend growth has been consistent and modest (roughly 28% cumulative growth across the ten quarters), a pace that appears comfortably inside the FCF trajectory and does not by itself signal strain. The notable gap is acquisitions: after the Stericycle outflow, M&A spending fell to $4-85M per quarter in 2026, so any resumption of large-scale dealmaking would compress the very buyback capacity that the current FCF margin supports.

A cumulative gap of roughly $7.8B in favor of cash flow over earnings is unusually large even for a capital-intensive industrial, and the fact that it widened (from 1.70-1.79x ratios in mid-2024 to 2.00-2.29x in 2025-2026) indicates the divergence is a feature of the model rather than a one-time event. This pattern typically reflects heavy non-cash charges layered onto a business with modest true cash tax and working capital needs, and for WM it likely reflects the accounting treatment of landfill airspace depletion, which depresses book earnings relative to the cash actually collected at the gate. The implication for valuation is that cash-based multiples may be more informative than P/E here, though the caveat is that ARO accretion and closure reserve additions are judgmental and could shift the cumulative relationship over a longer horizon.