SPDR Dow Jones Industrial Average ETF (DIA) Seasonality
Recurring seasonal patterns for DIA — the calendar windows where SPDR Dow Jones Industrial Average ETF 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.
DIA seasonality at a glance
Over the last 10 years, DIA's strongest seasonal window has been Oct 12 – Nov 11: it ended higher in 10 of 10 years (100% win rate) with an average return of +4.61% across a 30-day hold. On the weak side, DIA has historically declined between Mar 2 – Mar 12, falling in 7 of 10 years (average -2.51%).
In total, our analysis finds 476 recurring seasonal windows for SPDR Dow Jones Industrial Average ETF — 408 bullish and 68 bearish. The next high-win-rate window, Aug 2 – Sep 1, opens in 6 days. These figures describe historical behaviour only — not a forecast.
DIA'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 5d ago | Jun 22 – Jul 22 | 30d | +3.33% | 100% | +0.88% |
| Completedended 6d ago | Jun 21 – Jul 21 | 30d | +3.27% | 100% | +1.19% |
| Active20d left | Jul 27 – Aug 16 | 20d | +1.01% | 80% | — |
| Upcomingin 6d | Aug 2 – Sep 1 | 30d | +2.13% | 80% | — |
| Upcomingin 7d | Aug 3 – Sep 2 | 30d | +1.85% | 80% | — |
| Upcomingin 14d | Aug 10 – Aug 30 | 20d | +1.15% | 80% | — |
| Upcomingin 61d | Sep 26 – Oct 16 | 20d | +1.24% | 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 DIA seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
DIA seasonality FAQ
What has historically been the best month to buy DIA stock?
Based on the last 10 years of price data, DIA's strongest seasonal window starts in October: Oct 12 to Nov 11, which ended higher in 10 of 10 years (100% win rate) with an average return of +4.61%. Past seasonal patterns do not guarantee future performance.
What is DIA's strongest seasonal pattern?
DIA's highest-win-rate pattern in our data is the Oct 12 – Nov 11 window (30-day hold): up in 10 of the last 10 years with an average move of +4.61%.
When has DIA historically performed worst?
DIA's weakest recurring window has been Mar 2 to Mar 12, declining in 7 of 10 years with an average return of -2.51%.
How reliable are DIA's seasonal patterns?
Each DIA pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. DIA currently shows 476 recurring windows (408 bullish, 68 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is DIA stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing SPDR Dow Jones Industrial Average ETF's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where DIA 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.