Sun Life Financial (SLF.TO) Seasonality
Recurring seasonal patterns for SLF.TO — the calendar windows where Sun Life Financial 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.
SLF.TO seasonality at a glance
Over the last 10 years, SLF.TO's strongest seasonal window has been Oct 18 – Nov 17: it ended higher in 9 of 10 years (90% win rate) with an average return of +5.54% across a 30-day hold. On the weak side, SLF.TO has historically declined between Jun 7 – Jun 17, falling in 10 of 10 years (average -2.64%).
In total, our analysis finds 528 recurring seasonal windows for Sun Life Financial — 419 bullish and 109 bearish. The next high-win-rate window, Sep 4 – Oct 4, opens in 39 days. These figures describe historical behaviour only — not a forecast.
SLF.TO'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 | +1.13% | 80% | +2.56% |
| Completedended 3d ago | Jul 4 – Jul 24 | 20d | +1.04% | 80% | +1.56% |
| Upcomingin 39d | Sep 4 – Oct 4 | 30d | +2.46% | 80% | — |
| Upcomingin 40d | Sep 5 – Sep 15 | 10d | +1.54% | 80% | — |
| Upcomingin 41d | Sep 6 – Sep 16 | 10d | +1.42% | 90% | — |
| Upcomingin 42d | Sep 7 – Sep 17 | 10d | +1.76% | 90% | — |
| Upcomingin 42d | Sep 7 – Oct 7 | 30d | +3.30% | 90% | — |
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 SLF.TO seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
SLF.TO seasonality FAQ
What has historically been the best month to buy SLF.TO stock?
Based on the last 10 years of price data, SLF.TO's strongest seasonal window starts in October: Oct 18 to Nov 17, which ended higher in 9 of 10 years (90% win rate) with an average return of +5.54%. Past seasonal patterns do not guarantee future performance.
What is SLF.TO's strongest seasonal pattern?
SLF.TO's highest-win-rate pattern in our data is the Oct 18 – Nov 17 window (30-day hold): up in 9 of the last 10 years with an average move of +5.54%.
When has SLF.TO historically performed worst?
SLF.TO's weakest recurring window has been Jun 7 to Jun 17, declining in 10 of 10 years with an average return of -2.64%.
How reliable are SLF.TO's seasonal patterns?
Each SLF.TO pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. SLF.TO currently shows 528 recurring windows (419 bullish, 109 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is SLF.TO stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Sun Life Financial's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where SLF.TO 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.