Smurfit Westrock (SW) Seasonality
Recurring seasonal patterns for SW — the calendar windows where Smurfit Westrock 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.
SW seasonality at a glance
Over the last 10 years, SW's strongest seasonal window has been Aug 7 – Sep 6: it ended higher in 9 of 10 years (90% win rate) with an average return of +5.80% across a 30-day hold. On the weak side, SW has historically declined between Feb 19 – Mar 1, falling in 10 of 10 years (average -6.11%).
In total, our analysis finds 843 recurring seasonal windows for Smurfit Westrock — 593 bullish and 250 bearish. The next high-win-rate window, Aug 7 – Sep 6, opens in 11 days. These figures describe historical behaviour only — not a forecast.
SW'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 9d ago | Jun 18 – Jul 18 | 30d | +1.32% | 80% | +0.23% |
| Completedended 49d ago | May 29 – Jun 8 | 10d | -1.26% | 80% | -1.58% |
| Upcomingin 11d | Aug 7 – Sep 6 | 30d | +5.80% | 90% | — |
| Upcomingin 12d | Aug 8 – Sep 7 | 30d | +5.34% | 90% | — |
| Upcomingin 13d | Aug 9 – Sep 8 | 30d | +4.24% | 80% | — |
| Upcomingin 14d | Aug 10 – Sep 9 | 30d | +3.46% | 80% | — |
| Upcomingin 15d | Aug 11 – Sep 10 | 30d | +3.44% | 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 SW seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
SW seasonality FAQ
What has historically been the best month to buy SW stock?
Based on the last 10 years of price data, SW's strongest seasonal window starts in August: Aug 7 to Sep 6, which ended higher in 9 of 10 years (90% win rate) with an average return of +5.80%. Past seasonal patterns do not guarantee future performance.
What is SW's strongest seasonal pattern?
SW's highest-win-rate pattern in our data is the Aug 7 – Sep 6 window (30-day hold): up in 9 of the last 10 years with an average move of +5.80%.
When has SW historically performed worst?
SW's weakest recurring window has been Feb 19 to Mar 1, declining in 10 of 10 years with an average return of -6.11%.
How reliable are SW's seasonal patterns?
Each SW pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. SW currently shows 843 recurring windows (593 bullish, 250 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is SW stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Smurfit Westrock's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where SW 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.