Seasonality
CLH seasonality — Clean Harbors
Over the last 11 years, CLH's strongest month on average has been November (+5.1%) and its weakest December (-1.6%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +3.48% | +1.51% | 60% | +20.0% | -7.2% | 10 |
| Feb | +2.13% | +3.77% | 70% | +14.8% | -15.4% | 10 |
| Mar | -0.30% | -1.74% | 40% | +17.0% | -26.1% | 10 |
| Apr | +2.20% | +4.27% | 70% | +9.1% | -6.2% | 10 |
| May | +1.24% | +2.59% | 60% | +15.7% | -15.6% | 10 |
| Jun | +3.60% | +3.17% | 80% | +17.1% | -6.1% | 10 |
| Jul | +3.97% | +2.24% | 90% | +11.3% | -0.6% | 10 |
| Aug | +4.94% | +2.62% | 80% | +20.5% | -5.5% | 10 |
| Sep | -0.79% | -1.38% | 40% | +5.0% | -8.3% | 10 |
| Oct | -1.40% | -4.63% | 30% | +11.3% | -9.3% | 10 |
| Nov | +5.14% | +0.65% | 67% | +36.6% | -9.9% | 9 |
| Dec | -1.58% | +1.84% | 60% | +8.0% | -23.5% | 10 |
Monthly returns heat map — CLH
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 10.8 | 12.8 | -2.2 | 9.1 | -10.1 | 6.3 | 4.7 | 0.8 | -1.6 | -2.6 | -6.0 | +21.2% | |
| 2025 | 1.2 | -8.3 | -7.7 | 8.5 | 6.0 | 1.9 | 2.0 | 2.7 | -4.1 | -9.3 | 8.1 | 3.0 | +1.9% |
| 2024 | -3.8 | 8.4 | 10.6 | -5.9 | 14.3 | 4.4 | 5.6 | 3.0 | -1.7 | -4.3 | 12.5 | -11.5 | +31.9% |
| 2023 | 14.2 | 1.4 | 7.9 | 1.8 | -3.3 | 17.1 | 1.1 | 1.9 | -1.2 | -8.2 | 5.2 | 8.0 | +52.9% |
| 2022 | -7.2 | 3.1 | 17.0 | -6.0 | -11.0 | -6.1 | 11.3 | 20.3 | -6.3 | 11.3 | -2.0 | -4.9 | +14.4% |
| 2021 | 1.8 | 9.9 | -1.3 | 5.8 | 4.7 | 0.0 | 2.0 | 8.0 | 1.2 | 8.3 | -9.9 | -1.6 | +31.1% |
| 2020 | -4.1 | -15.4 | -26.1 | 4.1 | 11.2 | 1.0 | -0.6 | 2.5 | -8.3 | -5.5 | 36.6 | 5.2 | -11.2% |
| 2019 | 20.0 | 14.8 | 5.2 | 6.2 | -15.6 | 10.9 | 9.4 | -5.5 | 5.0 | 6.8 | 0.2 | 3.8 | +73.8% |
| 2018 | 2.1 | -9.8 | -2.2 | -6.2 | 15.7 | 4.8 | 2.5 | 20.5 | 4.4 | -5.0 | -5.2 | -23.5 | -8.9% |
| 2017 | -0.3 | 4.4 | -4.0 | 4.5 | 0.5 | -4.4 | 1.7 | -4.8 | 4.8 | -5.6 | 0.7 | 0.6 | -2.6% |
| 2016 | 5.3 |