Seasonality
CENX seasonality — Century Aluminum Company
Over the last 11 years, CENX's strongest month on average has been November (+17.5%) and its weakest October (-3.9%).
Average return by month
Month-by-month statistics
| Month | Avg | Median | Up % | Best | Worst | Yrs |
|---|---|---|---|---|---|---|
| Jan | +11.57% | +6.81% | 60% | +79.9% | -29.6% | 10 |
| Feb | +9.40% | +5.52% | 60% | +54.0% | -14.4% | 10 |
| Mar | +2.38% | +0.42% | 50% | +47.0% | -37.6% | 10 |
| Apr | -3.09% | -2.01% | 50% | +20.2% | -35.9% | 10 |
| May | -3.02% | -2.09% | 50% | +37.0% | -33.5% | 10 |
| Jun | -1.40% | +1.38% | 50% | +23.6% | -37.5% | 10 |
| Jul | +4.70% | +6.85% | 70% | +22.2% | -18.7% | 10 |
| Aug | -2.66% | -1.82% | 40% | +16.3% | -23.4% | 10 |
| Sep | -3.45% | -4.26% | 40% | +31.5% | -31.6% | 10 |
| Oct | -3.90% | -6.96% | 30% | +36.5% | -33.7% | 10 |
| Nov | +17.50% | +18.91% | 89% | +54.3% | -5.4% | 9 |
| Dec | +11.88% | +7.67% | 60% | +54.5% | -20.2% | 10 |
Monthly returns heat map — CENX
price return, %| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 15.7 | 13.7 | 13.8 | 1.3 | 11.0 | -30.3 | -2.7 | 2.2 | -21.4 | -6.3 | -0.7 | -14.6% | |
| 2025 | 0.3 | 3.7 | -2.1 | -11.6 | -5.6 | 16.3 | 17.5 | 5.4 | 31.5 | 0.9 | 1.2 | 30.7 | +115.0% |
| 2024 | -8.2 | -6.1 | 47.0 | 12.7 | 5.7 | -8.6 | -9.8 | -5.0 | 13.0 | 8.8 | 29.4 | -20.2 | +50.1% |
| 2023 | 37.4 | 7.4 | -17.1 | -14.1 | -8.7 | 11.2 | 6.7 | -20.0 | -3.4 | -8.1 | 18.9 | 54.5 | +48.4% |
| 2022 | -7.4 | 54.0 | 11.4 | -35.9 | -30.1 | -37.5 | 7.1 | -2.1 | -31.6 | 36.5 | 25.0 | -9.2 | -50.6% |
| 2021 | -11.6 | 40.8 | 28.6 | -11.3 | -13.1 | -5.3 | 13.0 | -11.9 | 4.9 | -1.8 | 0.1 | 25.2 | +50.1% |
| 2020 | -29.6 | 9.6 | -37.6 | 20.2 | 37.0 | 19.6 | 22.2 | 13.3 | -27.9 | -7.6 | 54.3 | 8.7 | +46.7% |
| 2019 | 25.9 | -6.2 | 2.9 | -5.3 | -33.5 | 23.6 | 4.0 | -23.4 | 20.5 | -12.2 | 20.9 | 6.7 | +2.9% |
| 2018 | 13.3 | -14.4 | -13.2 | 5.6 | 1.4 | -11.1 | -18.7 | -1.5 | -5.2 | -33.7 | 13.1 | -18.6 | -62.8% |
| 2017 | 79.9 | -8.5 | -9.9 | 7.5 | 5.7 | 8.0 | 7.7 | 16.3 | -15.1 | -15.6 | -5.4 | 48.2 | +129.4% |
| 2016 | -7.2 |