iShares MSCI Japan ETF (EWJ) Seasonality
Recurring seasonal patterns for EWJ — the calendar windows where iShares MSCI Japan 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.
EWJ seasonality at a glance
Over the last 10 years, EWJ's strongest seasonal window has been May 9 – Jun 8: it ended higher in 10 of 10 years (100% win rate) with an average return of +3.02% across a 30-day hold. On the weak side, EWJ has historically declined between Jun 7 – Jun 17, falling in 9 of 10 years (average -1.59%).
In total, our analysis finds 475 recurring seasonal windows for iShares MSCI Japan ETF — 353 bullish and 122 bearish. The next high-win-rate window, Aug 9 – Sep 8, opens in 13 days. These figures describe historical behaviour only — not a forecast.
EWJ'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 33d ago | Jun 4 – Jun 24 | 20d | -1.56% | 90% | -1.08% |
| Completedended 45d ago | May 23 – Jun 12 | 20d | +1.77% | 80% | +1.20% |
| Upcomingin 13d | Aug 9 – Sep 8 | 30d | +1.54% | 80% | — |
| Upcomingin 14d | Aug 10 – Sep 9 | 30d | +1.67% | 80% | — |
| Upcomingin 17d | Aug 13 – Sep 12 | 30d | +1.52% | 80% | — |
| Upcomingin 18d | Aug 14 – Sep 13 | 30d | +1.59% | 80% | — |
| Upcomingin 19d | Aug 15 – Sep 14 | 30d | +1.64% | 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 EWJ seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
EWJ seasonality FAQ
What has historically been the best month to buy EWJ stock?
Based on the last 10 years of price data, EWJ's strongest seasonal window starts in May: May 9 to Jun 8, which ended higher in 10 of 10 years (100% win rate) with an average return of +3.02%. Past seasonal patterns do not guarantee future performance.
What is EWJ's strongest seasonal pattern?
EWJ's highest-win-rate pattern in our data is the May 9 – Jun 8 window (30-day hold): up in 10 of the last 10 years with an average move of +3.02%.
When has EWJ historically performed worst?
EWJ's weakest recurring window has been Jun 7 to Jun 17, declining in 9 of 10 years with an average return of -1.59%.
How reliable are EWJ's seasonal patterns?
Each EWJ pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. EWJ currently shows 475 recurring windows (353 bullish, 122 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is EWJ stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing iShares MSCI Japan ETF's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where EWJ 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.