Clean Harbors Inc (CLH) is overvalued and Casella Waste Systems Inc (CWST) is overvalued.
Both trade above our estimate of their intrinsic value. CLH is the closer of the two: -64%, against -980% for CWST.
Values as of the 22 Sept 2026 close.
Discounting its cash flows at 8.9% (average of 3 methods) values the shares at $190.37; the price of $312.85 is 64% above that value, and 77% of that value comes from beyond year five.
Leak Score 14/100 on 3 of 12 signals
Discounting its cash flows at 8.4% (average of 2 methods) values the shares at $7.94; the price of $85.76 is 980% above that value, and 79% of that value comes from beyond year five.
Leak Score 0/100 on 3 of 12 signals
| Metric | CLH | CWST |
|---|---|---|
| Verdict | Overvalued | Overvalued |
| Price | $312.85 | $85.76 |
| Intrinsic value | $190.37 | $7.94 |
| Margin of safety | -64% | -980% |
| Leak Score | 14/100 (3/12) | 0/100 (3/12) |
| Market cap | $16.5B | $5.5B |
| Revenue growth, 5 years | 13.9% | 18.9% |
| Operating margin | 11.8% | 4.8% |
| Net margin | 7.0% | 0.3% |
| Return on equity | 15.6% | 0.4% |
| Debt to equity | 1.04 | 0.91 |
| P/E | 37.9x | 958.2x |
| Forward P/E | 31.6x | 53.3x |
| P/B | 5.6x | 3.5x |