American Tower (AMT) Seasonality
Recurring seasonal patterns for AMT — the calendar windows where American Tower 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.
AMT seasonality at a glance
Over the last 10 years, AMT's strongest seasonal window has been May 24 – Jun 23: it ended higher in 10 of 10 years (100% win rate) with an average return of +4.98% across a 30-day hold. On the weak side, AMT has historically declined between Sep 7 – Oct 7, falling in 10 of 10 years (average -7.58%).
In total, our analysis finds 618 recurring seasonal windows for American Tower — 434 bullish and 184 bearish. The next high-win-rate window, Aug 4 – Aug 24, opens in 8 days. These figures describe historical behaviour only — not a forecast.
AMT'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 8d ago | Jun 29 – Jul 19 | 20d | +2.07% | 80% | +0.82% |
| Completedended 40d ago | May 18 – Jun 17 | 30d | +4.11% | 90% | +3.12% |
| Upcomingin 8d | Aug 4 – Aug 24 | 20d | -1.00% | 80% | — |
| Upcomingin 29d | Aug 25 – Sep 24 | 30d | -3.73% | 90% | — |
| Upcomingin 30d | Aug 26 – Sep 25 | 30d | -3.39% | 90% | — |
| Upcomingin 31d | Aug 27 – Sep 26 | 30d | -4.08% | 90% | — |
| Upcomingin 32d | Aug 28 – Sep 27 | 30d | -5.13% | 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 AMT seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
AMT seasonality FAQ
What has historically been the best month to buy AMT stock?
Based on the last 10 years of price data, AMT's strongest seasonal window starts in May: May 24 to Jun 23, which ended higher in 10 of 10 years (100% win rate) with an average return of +4.98%. Past seasonal patterns do not guarantee future performance.
What is AMT's strongest seasonal pattern?
AMT's highest-win-rate pattern in our data is the May 24 – Jun 23 window (30-day hold): up in 10 of the last 10 years with an average move of +4.98%.
When has AMT historically performed worst?
AMT's weakest recurring window has been Sep 7 to Oct 7, declining in 10 of 10 years with an average return of -7.58%.
How reliable are AMT's seasonal patterns?
Each AMT pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. AMT currently shows 618 recurring windows (434 bullish, 184 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is AMT 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 Tower's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where AMT 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.