Clean Harbors (CLH) Q2 2026 Earnings Call Transcript

Clean Harbors reported Q2 revenue of $1.74B (+12% y/y) and net income of $170.5M (+34% y/y), with adjusted EBITDA up 22% to $409M and an adjusted EBITDA margin of 23.6% (+190 bps). The company raised 2026 guidance to adjusted EBITDA of $1.35B–$1.41B (+$110M vs prior guidance) and adjusted free cash flow of $520M–$580M (+$30M vs prior), supported by Environmental Services utilization and Safety-Kleen pricing/spread dynamics amid base oil constraints. It also announced a $305M all-cash acquisition of ES&H (expected to close H2’26) plus a new $600M/10-year manufacturing disposal contract, while increasing share repurchases (84,000 shares at $298 average) and maintaining net leverage of ~2.0x.

Analysis

CLH is increasingly behaving like a regulated-capacity owner, not a cyclical services contractor. The real earnings power is in scarce disposal and treatment assets with sticky routing economics; that should support pricing even if industrial activity softens. Second-order, the company’s growing ability to bundle waste, ER, and remediation into one national contract should keep pulling share from smaller regional operators and tighten the supply chain around a few high-compliance vendors.

The near-term bear case is that the re-refining windfall is probably the high-water mark for this cycle, so headline growth can decelerate quickly if base-oil spreads normalize. That matters for sentiment more than intrinsic value: over the next 1-3 months the stock trades on whether Environmental Services can sustain margin expansion and convert announced contracts into visible run-rate revenue; over 6-18 months the bigger driver is whether data-center, PFAS, and reshoring work becomes a repeatable installed-base business rather than a one-off pipeline story.

Contrarian take: the market may be overfocusing on the commodity segment and underpricing the durability of the disposal network. If management keeps capital discipline and avoids overpaying for bolt-ons, CLH can sustain a premium to WM on earnings revisions and scarcity value. The thesis breaks if SG&A creeps higher, ES margins stall, or SKSS normalizes faster than the company’s current framework assumes.

Key Decisions for Investors

• Go long CLH on any 5-8% post-earnings pullback; 3-6 month horizon, with the risk/reward tied to continued ES margin expansion and contract ramp visibility. Exit if the next quarter shows no follow-through in Environmental Services margins.
• Pair trade: long CLH / short WM for 3-6 months to isolate the scarcer-capacity, higher-revision name versus the steadier but lower-upside waste proxy. Thesis fails if CLH integration costs or SG&A step up materially.
• Use a tactical alert, not an aggressive chase: if Q3 shows SKSS normalizing faster than guided while ES stays firm, add to CLH weakness rather than strength; if ES disappoints, treat that as a thesis break and reduce exposure.