Amgen (AMGN) Seasonality
Recurring seasonal patterns for AMGN — the calendar windows where Amgen 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.
AMGN seasonality at a glance
Over the last 10 years, AMGN's strongest seasonal window has been Jun 11 – Jul 11: it ended higher in 10 of 10 years (100% win rate) with an average return of +4.53% across a 30-day hold. On the weak side, AMGN has historically declined between Oct 17 – Oct 27, falling in 9 of 10 years (average -2.78%).
In total, our analysis finds 536 recurring seasonal windows for Amgen — 411 bullish and 125 bearish. The next high-win-rate window, Aug 7 – Aug 17, opens in 11 days. These figures describe historical behaviour only — not a forecast.
AMGN'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 | +1.04% | 80% | +4.57% |
| Completedended 3d ago | Jun 24 – Jul 24 | 30d | +4.66% | 90% | +5.71% |
| Upcomingin 11d | Aug 7 – Aug 17 | 10d | +2.71% | 80% | — |
| Upcomingin 13d | Aug 9 – Aug 19 | 10d | +1.50% | 80% | — |
| Upcomingin 14d | Aug 10 – Aug 20 | 10d | +1.43% | 80% | — |
| Upcomingin 15d | Aug 11 – Aug 21 | 10d | +1.71% | 80% | — |
| Upcomingin 45d | Sep 10 – Sep 20 | 10d | +1.48% | 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 AMGN seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
AMGN seasonality FAQ
What has historically been the best month to buy AMGN stock?
Based on the last 10 years of price data, AMGN's strongest seasonal window starts in June: Jun 11 to Jul 11, which ended higher in 10 of 10 years (100% win rate) with an average return of +4.53%. Past seasonal patterns do not guarantee future performance.
What is AMGN's strongest seasonal pattern?
AMGN's highest-win-rate pattern in our data is the Jun 11 – Jul 11 window (30-day hold): up in 10 of the last 10 years with an average move of +4.53%.
When has AMGN historically performed worst?
AMGN's weakest recurring window has been Oct 17 to Oct 27, declining in 9 of 10 years with an average return of -2.78%.
How reliable are AMGN's seasonal patterns?
Each AMGN pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. AMGN currently shows 536 recurring windows (411 bullish, 125 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is AMGN stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Amgen's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where AMGN 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.