Sanofi (SAN.PA) Seasonality
Recurring seasonal patterns for SAN.PA — the calendar windows where Sanofi 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.
SAN.PA seasonality at a glance
Over the last 10 years, SAN.PA's strongest seasonal window has been Apr 20 – May 20: it ended higher in 9 of 10 years (90% win rate) with an average return of +4.56% across a 30-day hold. On the weak side, SAN.PA has historically declined between Jul 27 – Aug 6, falling in 10 of 10 years (average -3.14%).
In total, our analysis finds 488 recurring seasonal windows for Sanofi — 311 bullish and 177 bearish. The next high-win-rate window, Sep 30 – Oct 10, opens in 19 days. These figures describe historical behaviour only — not a forecast.
SAN.PA'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 16d ago | Aug 6 – Aug 26 | 20d | +1.32% | 80% | +5.36% |
| Completedended 27d ago | Jul 26 – Aug 15 | 20d | -2.79% | 80% | -0.67% |
| Upcomingin 19d | Sep 30 – Oct 10 | 10d | +1.00% | 80% | — |
| Upcomingin 59d | Nov 9 – Dec 9 | 30d | -2.65% | 80% | — |
| Upcomingin 60d | Nov 10 – Nov 20 | 10d | -1.24% | 80% | — |
| Upcomingin 63d | Nov 13 – Dec 3 | 20d | -1.92% | 80% | — |
| Upcomingin 73d | Nov 23 – Dec 3 | 10d | -1.62% | 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 SAN.PA seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
SAN.PA seasonality FAQ
What has historically been the best month to buy SAN.PA stock?
Based on the last 10 years of price data, SAN.PA's strongest seasonal window starts in April: Apr 20 to May 20, which ended higher in 9 of 10 years (90% win rate) with an average return of +4.56%. Past seasonal patterns do not guarantee future performance.
What is SAN.PA's strongest seasonal pattern?
SAN.PA's highest-win-rate pattern in our data is the Apr 20 – May 20 window (30-day hold): up in 9 of the last 10 years with an average move of +4.56%.
When has SAN.PA historically performed worst?
SAN.PA's weakest recurring window has been Jul 27 to Aug 6, declining in 10 of 10 years with an average return of -3.14%.
How reliable are SAN.PA's seasonal patterns?
Each SAN.PA pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. SAN.PA currently shows 488 recurring windows (311 bullish, 177 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is SAN.PA stock seasonality?
Seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Sanofi's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where SAN.PA 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.