General Motors (GM) Seasonality
Recurring seasonal patterns for GM — the calendar windows where General Motors 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.
GM seasonality at a glance
Over the last 10 years, GM's strongest seasonal window has been Oct 30 – Nov 29: it ended higher in 9 of 10 years (90% win rate) with an average return of +8.83% across a 30-day hold. On the weak side, GM has historically declined between Apr 24 – May 4, falling in 9 of 10 years (average -3.01%).
In total, our analysis finds 748 recurring seasonal windows for General Motors — 483 bullish and 265 bearish. The next high-win-rate window, Oct 1 – Oct 31, opens in 20 days. These figures describe historical behaviour only — not a forecast.
GM'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 56d ago | Jul 7 – Jul 17 | 10d | +2.68% | 80% | +0.05% |
| Completedended 59d ago | Jul 4 – Jul 14 | 10d | +1.89% | 80% | +1.14% |
| Upcomingin 20d | Oct 1 – Oct 31 | 30d | +6.55% | 80% | — |
| Upcomingin 21d | Oct 2 – Oct 22 | 20d | +7.31% | 80% | — |
| Upcomingin 21d | Oct 2 – Nov 1 | 30d | +7.72% | 80% | — |
| Upcomingin 30d | Oct 11 – Oct 21 | 10d | +3.75% | 80% | — |
| Upcomingin 30d | Oct 11 – Nov 10 | 30d | +10.04% | 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 GM seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
GM seasonality FAQ
What has historically been the best month to buy GM stock?
Based on the last 10 years of price data, GM's strongest seasonal window starts in October: Oct 30 to Nov 29, which ended higher in 9 of 10 years (90% win rate) with an average return of +8.83%. Past seasonal patterns do not guarantee future performance.
What is GM's strongest seasonal pattern?
GM's highest-win-rate pattern in our data is the Oct 30 – Nov 29 window (30-day hold): up in 9 of the last 10 years with an average move of +8.83%.
When has GM historically performed worst?
GM's weakest recurring window has been Apr 24 to May 4, declining in 9 of 10 years with an average return of -3.01%.
How reliable are GM's seasonal patterns?
Each GM pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. GM currently shows 748 recurring windows (483 bullish, 265 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is GM stock seasonality?
Seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing General Motors's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where GM 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.