Century Aluminum Company (CENX) Seasonality
Recurring seasonal patterns for CENX — the calendar windows where Century Aluminum Company has historically tended to rise or fall, with the win rate (how often it repeated) and average return for each, based on the last 10 years of price history.
CENX seasonality at a glance
Over the last 10 years, CENX's strongest seasonal window has been Oct 31 – Nov 10: it ended higher in 10 of 10 years (100% win rate) with an average return of +15.82% across a 10-day hold. On the weak side, CENX has historically declined between Mar 5 – Mar 25, falling in 9 of 10 years (average -9.54%).
In total, our analysis finds 905 recurring seasonal windows for Century Aluminum Company — 637 bullish and 268 bearish. The next high-win-rate window, Jul 29 – Aug 8, opens in 2 days. These figures describe historical behaviour only — not a forecast.
CENX's upcoming & recent seasonal patterns
Holding period:10-day20-day30-dayOrdered by season — windows opening soon first, plus a couple of recently completed high-performers. Holding-period colors help you compare durations at a glance.
| Status | Seasonal window | Hold | Avg return | Win rate | This year |
|---|---|---|---|---|---|
| Completedended 38d ago | Jun 9 – Jun 19 | 10d | -5.28% | 80% | -15.10% |
| Completedended 39d ago | Jun 8 – Jun 18 | 10d | -6.10% | 80% | -18.31% |
| Upcomingin 2d | Jul 29 – Aug 8 | 10d | -2.94% | 80% | — |
| Upcomingin 12d | Aug 8 – Sep 7 | 30d | -2.64% | 80% | — |
| Upcomingin 13d | Aug 9 – Sep 8 | 30d | -3.39% | 80% | — |
| Upcomingin 14d | Aug 10 – Sep 9 | 30d | -4.30% | 80% | — |
| Upcomingin 20d | Aug 16 – Sep 5 | 20d | -1.49% | 80% | — |
Win rate = how often the pattern repeated in the same direction. Average return = the mean move across all analysed years. Past performance does not guarantee future results.
Explore CENX seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
CENX seasonality FAQ
What has historically been the best month to buy CENX stock?
Based on the last 10 years of price data, CENX's strongest seasonal window starts in October: Oct 31 to Nov 10, which ended higher in 10 of 10 years (100% win rate) with an average return of +15.82%. Past seasonal patterns do not guarantee future performance.
What is CENX's strongest seasonal pattern?
CENX's highest-win-rate pattern in our data is the Oct 31 – Nov 10 window (10-day hold): up in 10 of the last 10 years with an average move of +15.82%.
When has CENX historically performed worst?
CENX's weakest recurring window has been Mar 5 to Mar 25, declining in 9 of 10 years with an average return of -9.54%.
How reliable are CENX's seasonal patterns?
Each CENX pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. CENX currently shows 905 recurring windows (637 bullish, 268 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is CENX stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Century Aluminum Company's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where CENX has repeatedly risen (bullish) or fallen (bearish). Each pattern is scored by its win rate and average return so you can judge how reliable and how strong it has been.
Seasonality is one input among many — it works best alongside your own research and risk management. Learn more in our guide to seasonal analysis and the tutorials.