Citi’s upgrade of Clean Harbors (CLH) to Buy, tied to anticipated growth in U.S. chemicals production and rising demand for hazardous waste disposal, has become a key catalyst that is drawing fresh attention to the stock.

The share price has climbed to $302.23, with a 30-day share price return of 4.60% and a 90-day share price return of 18.25%. The 1-year total shareholder return of 50.89% points to strong momentum supported by Citi’s upgrade and similar positive analyst commentary.

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With Clean Harbors now at $302.23, sitting only slightly below the average analyst price target and flagged as undervalued by some intrinsic models, investors may question whether there is still a buying opportunity here or if the market is already pricing in potential future growth.

Most Popular Narrative: 20% Undervalued

With Clean Harbors at $302.23 and the most followed narrative pointing to a fair value of about $302.85 using a 7.17% discount rate, the valuation gap is now very tight and puts the focus squarely on the assumptions behind that model.

The growing urgency and evolving regulatory landscape around PFAS and hazardous waste management is expected to create a multibillion-dollar opportunity, and Clean Harbors' unique position as the only company with end-to-end PFAS destruction capabilities positions it to capture significant long-term revenue and margin growth as new government and corporate standards take effect.

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Result: Fair Value of $302.85 (UNDERVALUED)

However, you also need to factor in risks, such as tighter permitting on incinerators or new waste technologies that could reduce demand for some core services.

Another View: Market Multiple Sends a Caution Flag

While the SWS model points to Clean Harbors trading about 21.8% below its estimated fair value, the current P/E of 40.9x tells a different story. It is higher than the Commercial Services industry at 23.2x, above the peer average of 33.4x, and well ahead of the 23.2x fair ratio the market could move toward. That gap raises the question of how much valuation risk you are really comfortable carrying at today’s price.

Next Steps

With such mixed signals on value and growth expectations, the real question is how you see the balance between opportunity and risk. Take a closer look at the numbers and recent news flow, then weigh up the 2 key rewards and 2 important warning signs

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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.