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Clean Harbors (CLH) Stock May Be 32% Undervalued Following Senior Notes Offering

Simply Wall St·09/25/2026 12:29:19
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Clean Harbors has ridden a powerful multi‑year share price run, and the question now is whether the cash the business can generate is enough to support where the stock trades today. With the spotlight back on its ability to turn hazardous waste services into steady cash flows, investors are weighing how much future cash generation is already reflected in the current price.

  • Over the past 5 years the stock has returned 204.3%, which puts a lot of past optimism on the line if the underlying cash flows do not keep pace with expectations.
  • Fresh plans to issue US$600m of senior notes to help fund the EnviroServe acquisition and repay existing borrowings may reshape Clean Harbors' future cash flows by increasing interest costs while potentially adding new sources of operating cash over time.
  • Prefer to judge Clean Harbors on earnings? See why Clean Harbors's 38.0x P/E tells a different valuation story.

The stock's next move may depend on whether the current price can be squared with the intrinsic value suggested by its cash flows.

If you want more ideas priced on their cash generation rather than headlines, a focused starting point is our screener of 30 high quality undervalued stocks.

Is Clean Harbors Still Cheap on Cash Flow?

The Discounted Cash Flow (DCF) model here is built around the cash Clean Harbors can return to shareholders over time. On the latest twelve month numbers the business generated about $441.6m of free cash flow, with the model assuming this stream grows from the current base rather than shrinking. Those projections step up towards an annual free cash flow figure in the high hundreds of millions of dollars by the early 2030s, which points to a company that the model treats as still building its cash engine rather than already ex growth.

On that cash profile, the DCF outcome sits substantially above the current share price of $316.07. The planned US$600m in senior notes to fund EnviroServe and refinance borrowings helps explain why the market might be more cautious, since higher fixed interest costs can weigh on future free cash generation if the acquired operations do not pull their weight. The gap between the DCF result and today's traded price is where the full valuation work becomes most important for readers who want to judge whether the stock's cash flows justify more than the market is giving it credit for right now. Find out what Clean Harbors could be worth using our Discounted Cash Flow (DCF) estimate.

The Clean Harbors Narrative: What Would Justify Today's Price?

Simply Wall St Narratives pick up where the Clean Harbors valuation puzzle leaves off by spelling out which growth paths, margin levels, and earnings trajectories would need to play out for the stock to be worth materially more or less than it is today, and they sit on the platform's Community page as structured storylines. Rather than leaning on a single model output or headline multiple, each narrative lays out the fair value assumptions in plain view so you can line them up against actual results as they arrive.

One of the top community narratives on Clean Harbors: 10% undervalued

"Clean Harbors owns one of the most difficult to replicate infrastructure networks required to safely handle hazardous waste, from collection through final disposal..."

Discover why this Narrative puts Clean Harbors at 10% undervalued.

Before acting on Clean Harbors' valuation, there is one more factor to check

Cash flow models only tell part of the story, because the people steering Clean Harbors and the way their rewards are structured can shape how those cash flows are pursued over time. See who runs Clean Harbors and how they are paid.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.