Community Bank System, Inc. (CBU) Seasonality
Recurring seasonal patterns for CBU — the calendar windows where Community Bank System, Inc. 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.
CBU seasonality at a glance
Over the last 10 years, CBU's strongest seasonal window has been Oct 26 – Nov 25: it ended higher in 9 of 10 years (90% win rate) with an average return of +9.58% across a 30-day hold. On the weak side, CBU has historically declined between Mar 5 – Mar 25, falling in 9 of 10 years (average -5.18%).
In total, our analysis finds 684 recurring seasonal windows for Community Bank System, Inc. — 405 bullish and 279 bearish. The next high-win-rate window, Oct 1 – Oct 11, opens in 20 days. These figures describe historical behaviour only — not a forecast.
CBU'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 1d ago | Aug 31 – Sep 10 | 10d | -2.34% | 80% | -0.08% |
| Completedended 26d ago | Aug 6 – Aug 16 | 10d | +1.20% | 80% | +0.80% |
| Upcomingin 20d | Oct 1 – Oct 11 | 10d | +1.71% | 80% | — |
| Upcomingin 29d | Oct 10 – Nov 9 | 30d | +4.29% | 80% | — |
| Upcomingin 30d | Oct 11 – Nov 10 | 30d | +5.19% | 80% | — |
| Upcomingin 31d | Oct 12 – Nov 11 | 30d | +6.40% | 80% | — |
| Upcomingin 32d | Oct 13 – Nov 12 | 30d | +6.23% | 90% | — |
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 CBU seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
CBU seasonality FAQ
What has historically been the best month to buy CBU stock?
Based on the last 10 years of price data, CBU's strongest seasonal window starts in October: Oct 26 to Nov 25, which ended higher in 9 of 10 years (90% win rate) with an average return of +9.58%. Past seasonal patterns do not guarantee future performance.
What is CBU's strongest seasonal pattern?
CBU's highest-win-rate pattern in our data is the Oct 26 – Nov 25 window (30-day hold): up in 9 of the last 10 years with an average move of +9.58%.
When has CBU historically performed worst?
CBU's weakest recurring window has been Mar 5 to Mar 25, declining in 9 of 10 years with an average return of -5.18%.
How reliable are CBU's seasonal patterns?
Each CBU pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. CBU currently shows 684 recurring windows (405 bullish, 279 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is CBU stock seasonality?
Seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Community Bank System, Inc.'s price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where CBU 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.