T-Mobile US (TMUS) Seasonality
Recurring seasonal patterns for TMUS — the calendar windows where T-Mobile US 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.
TMUS seasonality at a glance
Over the last 10 years, TMUS's strongest seasonal window has been Mar 23 – Apr 22: it ended higher in 10 of 10 years (100% win rate) with an average return of +5.20% across a 30-day hold. On the weak side, TMUS has historically declined between Aug 9 – Sep 8, falling in 9 of 10 years (average -1.30%).
In total, our analysis finds 626 recurring seasonal windows for T-Mobile US — 509 bullish and 117 bearish. The next high-win-rate window, Oct 8 – Nov 7, opens in 27 days. These figures describe historical behaviour only — not a forecast.
TMUS'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 2d ago | Aug 20 – Sep 9 | 20d | -1.90% | 80% | -1.58% |
| Completedended 9d ago | Aug 3 – Sep 2 | 30d | +2.81% | 80% | +6.38% |
| Upcomingin 27d | Oct 8 – Nov 7 | 30d | +3.15% | 80% | — |
| Upcomingin 30d | Oct 11 – Nov 10 | 30d | +3.19% | 80% | — |
| Upcomingin 31d | Oct 12 – Nov 11 | 30d | +3.26% | 80% | — |
| Upcomingin 34d | Oct 15 – Nov 4 | 20d | +2.21% | 80% | — |
| Upcomingin 37d | Oct 18 – Nov 7 | 20d | +2.15% | 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 TMUS seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
TMUS seasonality FAQ
What has historically been the best month to buy TMUS stock?
Based on the last 10 years of price data, TMUS's strongest seasonal window starts in March: Mar 23 to Apr 22, which ended higher in 10 of 10 years (100% win rate) with an average return of +5.20%. Past seasonal patterns do not guarantee future performance.
What is TMUS's strongest seasonal pattern?
TMUS's highest-win-rate pattern in our data is the Mar 23 – Apr 22 window (30-day hold): up in 10 of the last 10 years with an average move of +5.20%.
When has TMUS historically performed worst?
TMUS's weakest recurring window has been Aug 9 to Sep 8, declining in 9 of 10 years with an average return of -1.30%.
How reliable are TMUS's seasonal patterns?
Each TMUS pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. TMUS currently shows 626 recurring windows (509 bullish, 117 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is TMUS stock seasonality?
Seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing T-Mobile US's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where TMUS 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.