Illumina, Inc. (ILMN) Seasonality
Recurring seasonal patterns for ILMN — the calendar windows where Illumina, Inc. 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.
ILMN seasonality at a glance
Over the last 10 years, ILMN's strongest seasonal window has been Jul 15 – Aug 4: it ended higher in 9 of 10 years (90% win rate) with an average return of +6.46% across a 20-day hold. On the weak side, ILMN has historically declined between Mar 1 – Mar 11, falling in 9 of 10 years (average -2.76%).
In total, our analysis finds 811 recurring seasonal windows for Illumina, Inc. — 447 bullish and 364 bearish. The next high-win-rate window, Aug 15 – Sep 4, opens in 19 days. These figures describe historical behaviour only — not a forecast.
ILMN'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 3d ago | Jul 14 – Jul 24 | 10d | +3.64% | 90% | +2.96% |
| Completedended 4d ago | Jul 3 – Jul 23 | 20d | +2.61% | 80% | +4.34% |
| Upcomingin 19d | Aug 15 – Sep 4 | 20d | -2.48% | 80% | — |
| Upcomingin 20d | Aug 16 – Sep 5 | 20d | -2.43% | 80% | — |
| Upcomingin 22d | Aug 18 – Sep 7 | 20d | -1.65% | 80% | — |
| Upcomingin 33d | Aug 29 – Sep 8 | 10d | -1.65% | 90% | — |
| Upcomingin 46d | Sep 11 – Oct 11 | 30d | -4.65% | 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 ILMN seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
ILMN seasonality FAQ
What has historically been the best month to buy ILMN stock?
Based on the last 10 years of price data, ILMN's strongest seasonal window starts in July: Jul 15 to Aug 4, which ended higher in 9 of 10 years (90% win rate) with an average return of +6.46%. Past seasonal patterns do not guarantee future performance.
What is ILMN's strongest seasonal pattern?
ILMN's highest-win-rate pattern in our data is the Jul 15 – Aug 4 window (20-day hold): up in 9 of the last 10 years with an average move of +6.46%.
When has ILMN historically performed worst?
ILMN's weakest recurring window has been Mar 1 to Mar 11, declining in 9 of 10 years with an average return of -2.76%.
How reliable are ILMN's seasonal patterns?
Each ILMN pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. ILMN currently shows 811 recurring windows (447 bullish, 364 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is ILMN stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Illumina, Inc.'s price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where ILMN 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.