Bristol Myers Squibb (BMY) Seasonality
Recurring seasonal patterns for BMY — the calendar windows where Bristol Myers Squibb 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.
BMY seasonality at a glance
Over the last 10 years, BMY's strongest seasonal window has been Oct 29 – Nov 8: it ended higher in 10 of 10 years (100% win rate) with an average return of +5.03% across a 10-day hold. On the weak side, BMY has historically declined between Apr 28 – May 28, falling in 9 of 10 years (average -2.69%).
In total, our analysis finds 585 recurring seasonal windows for Bristol Myers Squibb — 325 bullish and 260 bearish. The next high-win-rate window, Aug 5 – Aug 15, opens in 9 days. These figures describe historical behaviour only — not a forecast.
BMY'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 9d ago | Jun 18 – Jul 18 | 30d | +2.29% | 80% | +13.75% |
| Completedended 10d ago | Jun 17 – Jul 17 | 30d | +2.18% | 80% | +11.12% |
| Upcomingin 9d | Aug 5 – Aug 15 | 10d | +1.97% | 80% | — |
| Upcomingin 10d | Aug 6 – Aug 16 | 10d | +2.21% | 90% | — |
| Upcomingin 11d | Aug 7 – Aug 17 | 10d | +2.24% | 90% | — |
| Upcomingin 13d | Aug 9 – Aug 19 | 10d | +1.58% | 80% | — |
| Upcomingin 14d | Aug 10 – Aug 20 | 10d | +1.50% | 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 BMY seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
BMY seasonality FAQ
What has historically been the best month to buy BMY stock?
Based on the last 10 years of price data, BMY's strongest seasonal window starts in October: Oct 29 to Nov 8, which ended higher in 10 of 10 years (100% win rate) with an average return of +5.03%. Past seasonal patterns do not guarantee future performance.
What is BMY's strongest seasonal pattern?
BMY's highest-win-rate pattern in our data is the Oct 29 – Nov 8 window (10-day hold): up in 10 of the last 10 years with an average move of +5.03%.
When has BMY historically performed worst?
BMY's weakest recurring window has been Apr 28 to May 28, declining in 9 of 10 years with an average return of -2.69%.
How reliable are BMY's seasonal patterns?
Each BMY pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. BMY currently shows 585 recurring windows (325 bullish, 260 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is BMY stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Bristol Myers Squibb's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where BMY 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.