Clean Harbors (CLH) Posts Strong Q3 Results, Is The Stock Still Undervalued?

Clean Harbors (CLH) just put fresh numbers on the table, reporting third quarter revenue of $1.87b and net income of $208.1m, alongside new full year 2026 net income guidance of $528m to $563m.

Clean Harbors shares jumped 2.30% on the day of the announcement to US$284.10, even though the 30 day share price return is down 9.96% and the 90 day move is down 7.81%. This suggests short term momentum has cooled, while the 1 year total shareholder return of 36.63% and 5 year total shareholder return of 167.74% point to a longer track record that investors are still weighing against the latest results and leadership changes.

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Clean Harbors now appears to be a powerful operation on the back of these fresh results. However, the recent share price pullback raises a simple question: Are you paying up, or paying fair, for that strength?

Most Popular Narrative: 18.8% Undervalued

Clean Harbors closed at $284.10, while the most followed narrative pegs fair value at $350. That gap is exactly what many investors are trying to size up after the latest earnings and guidance.

The story is not simply that Clean Harbors cleans up hazardous waste.

The deeper investment thesis is: Modern society keeps producing hazardous waste, and somebody has to safely collect it, transport it, treat it and dispose of it. Clean Harbors owns one of the most difficult-to-replicate infrastructure networks required to do that.

See why 2 investors see Clean Harbors as 19% undervalued.

Result: Fair Value of $350 (UNDERVALUED)

Still, the Clean Harbors thesis can be shaken if tighter environmental rules slow new facility permits, or if acquisition integration fails to deliver expected benefits.

Find out about the key risks to this Clean Harbors narrative.

Another View: What The P/E Ratio Says About Clean Harbors

The SWS DCF model points to Clean Harbors trading at a 39.9% discount to estimated future cash flow value, yet the P/E ratio tells a different story. At 28.4x earnings, the stock sits above the US Commercial Services average of 18.6x and above the 21.4x fair ratio. Is that discount a cushion, or a signal that expectations already run hot?

For investors weighing that gap between cash flow value and earnings multiples, it helps to see how the valuation breaks down over time, not just at one price point. That is exactly what the See what the numbers say about this price — find out in our valuation breakdown..

Next Steps

Mixed reactions to Clean Harbors so far. If you want to move quickly and make up your own mind, weigh the 4 key rewards and 2 important warning signs.

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