American Funds Growth Fund of America A (AGTHX) Seasonality
Recurring seasonal patterns for AGTHX — the calendar windows where American Funds Growth Fund of America A 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.
AGTHX seasonality at a glance
Over the last 10 years, AGTHX's strongest seasonal window has been Jun 16 – Jul 16: it ended higher in 10 of 10 years (100% win rate) with an average return of +3.78% across a 30-day hold. On the weak side, AGTHX has historically declined between Mar 1 – Mar 11, falling in 8 of 10 years (average -2.00%).
In total, our analysis finds 559 recurring seasonal windows for American Funds Growth Fund of America A — 487 bullish and 72 bearish. The next high-win-rate window, Aug 2 – Sep 1, opens in 6 days. These figures describe historical behaviour only — not a forecast.
AGTHX'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 11d ago | Jun 26 – Jul 16 | 20d | +2.99% | 80% | +0.20% |
| Completedended 12d ago | Jul 5 – Jul 15 | 10d | +1.53% | 90% | +0.52% |
| Upcomingin 6d | Aug 2 – Sep 1 | 30d | +2.41% | 80% | — |
| Upcomingin 7d | Aug 3 – Sep 2 | 30d | +2.11% | 80% | — |
| Upcomingin 8d | Aug 4 – Sep 3 | 30d | +1.06% | 80% | — |
| Upcomingin 9d | Aug 5 – Aug 25 | 20d | +1.42% | 80% | — |
| Upcomingin 9d | Aug 5 – Sep 4 | 30d | +1.57% | 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 AGTHX seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
AGTHX seasonality FAQ
What has historically been the best month to buy AGTHX stock?
Based on the last 10 years of price data, AGTHX's strongest seasonal window starts in June: Jun 16 to Jul 16, which ended higher in 10 of 10 years (100% win rate) with an average return of +3.78%. Past seasonal patterns do not guarantee future performance.
What is AGTHX's strongest seasonal pattern?
AGTHX's highest-win-rate pattern in our data is the Jun 16 – Jul 16 window (30-day hold): up in 10 of the last 10 years with an average move of +3.78%.
When has AGTHX historically performed worst?
AGTHX's weakest recurring window has been Mar 1 to Mar 11, declining in 8 of 10 years with an average return of -2.00%.
How reliable are AGTHX's seasonal patterns?
Each AGTHX pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. AGTHX currently shows 559 recurring windows (487 bullish, 72 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is AGTHX stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing American Funds Growth Fund of America A's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where AGTHX 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.