Arthur J. Gallagher & Co. (AJG) Seasonality
Recurring seasonal patterns for AJG — the calendar windows where Arthur J. Gallagher & Co. 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.
AJG seasonality at a glance
Over the last 10 years, AJG's strongest seasonal window has been Nov 1 – Nov 21: it ended higher in 10 of 10 years (100% win rate) with an average return of +4.62% across a 20-day hold. On the weak side, AJG has historically declined between Dec 6 – Jan 5, falling in 7 of 10 years (average -2.37%).
In total, our analysis finds 642 recurring seasonal windows for Arthur J. Gallagher & Co. — 560 bullish and 82 bearish. The next high-win-rate window, Jul 30 – Aug 29, opens in 3 days. These figures describe historical behaviour only — not a forecast.
AJG'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 3d ago | Jun 24 – Jul 24 | 30d | +3.90% | 90% | +9.72% |
| Completedended 4d ago | Jun 23 – Jul 23 | 30d | +3.48% | 90% | +12.25% |
| Upcomingin 3d | Jul 30 – Aug 29 | 30d | +1.87% | 80% | — |
| Upcomingin 4d | Jul 31 – Aug 30 | 30d | +1.94% | 80% | — |
| Upcomingin 5d | Aug 1 – Aug 31 | 30d | +2.10% | 80% | — |
| Upcomingin 6d | Aug 2 – Sep 1 | 30d | +2.33% | 80% | — |
| Upcomingin 7d | Aug 3 – Sep 2 | 30d | +2.54% | 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 AJG seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
AJG seasonality FAQ
What has historically been the best month to buy AJG stock?
Based on the last 10 years of price data, AJG's strongest seasonal window starts in November: Nov 1 to Nov 21, which ended higher in 10 of 10 years (100% win rate) with an average return of +4.62%. Past seasonal patterns do not guarantee future performance.
What is AJG's strongest seasonal pattern?
AJG's highest-win-rate pattern in our data is the Nov 1 – Nov 21 window (20-day hold): up in 10 of the last 10 years with an average move of +4.62%.
When has AJG historically performed worst?
AJG's weakest recurring window has been Dec 6 to Jan 5, declining in 7 of 10 years with an average return of -2.37%.
How reliable are AJG's seasonal patterns?
Each AJG pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. AJG currently shows 642 recurring windows (560 bullish, 82 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is AJG stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Arthur J. Gallagher & Co.'s price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where AJG 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.