Genuine Parts Company (GPC) Seasonality
Recurring seasonal patterns for GPC — the calendar windows where Genuine Parts Company 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.
GPC seasonality at a glance
Over the last 10 years, GPC's strongest seasonal window has been Oct 30 – Nov 29: it ended higher in 10 of 10 years (100% win rate) with an average return of +4.40% across a 30-day hold. On the weak side, GPC has historically declined between Jun 7 – Jun 27, falling in 8 of 10 years (average -1.92%).
In total, our analysis finds 540 recurring seasonal windows for Genuine Parts Company — 398 bullish and 142 bearish. The next high-win-rate window, Jul 29 – Aug 8, opens in 2 days. These figures describe historical behaviour only — not a forecast.
GPC'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 | +1.66% | 80% | +8.31% |
| Completedended 11d ago | Jun 16 – Jul 16 | 30d | +1.18% | 80% | +17.14% |
| Upcomingin 2d | Jul 29 – Aug 8 | 10d | -1.13% | 80% | — |
| Upcomingin 19d | Aug 15 – Sep 4 | 20d | +1.72% | 80% | — |
| Upcomingin 27d | Aug 23 – Sep 2 | 10d | +1.02% | 80% | — |
| Upcomingin 30d | Aug 26 – Sep 5 | 10d | +1.30% | 80% | — |
| Upcomingin 63d | Sep 28 – Oct 18 | 20d | +1.79% | 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 GPC seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
GPC seasonality FAQ
What has historically been the best month to buy GPC stock?
Based on the last 10 years of price data, GPC's strongest seasonal window starts in October: Oct 30 to Nov 29, which ended higher in 10 of 10 years (100% win rate) with an average return of +4.40%. Past seasonal patterns do not guarantee future performance.
What is GPC's strongest seasonal pattern?
GPC's highest-win-rate pattern in our data is the Oct 30 – Nov 29 window (30-day hold): up in 10 of the last 10 years with an average move of +4.40%.
When has GPC historically performed worst?
GPC's weakest recurring window has been Jun 7 to Jun 27, declining in 8 of 10 years with an average return of -1.92%.
How reliable are GPC's seasonal patterns?
Each GPC pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. GPC currently shows 540 recurring windows (398 bullish, 142 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is GPC stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Genuine Parts Company's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where GPC 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.