Halozyme (HALO) Seasonality
Recurring seasonal patterns for HALO — the calendar windows where Halozyme 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.
HALO seasonality at a glance
Over the last 10 years, HALO's strongest seasonal window has been Oct 25 – Nov 14: it ended higher in 10 of 10 years (100% win rate) with an average return of +16.37% across a 20-day hold. On the weak side, HALO has historically declined between Oct 21 – Oct 31, falling in 9 of 10 years (average -2.74%).
In total, our analysis finds 828 recurring seasonal windows for Halozyme — 545 bullish and 283 bearish. The next high-win-rate window, Aug 22 – Sep 1, opens in 26 days. These figures describe historical behaviour only — not a forecast.
HALO'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 | +2.93% | 80% | +7.71% |
| Completedended 4d ago | Jul 13 – Jul 23 | 10d | +3.05% | 80% | +6.21% |
| Upcomingin 26d | Aug 22 – Sep 1 | 10d | +1.96% | 80% | — |
| Upcomingin 27d | Aug 23 – Sep 2 | 10d | +1.22% | 80% | — |
| Upcomingin 42d | Sep 7 – Sep 17 | 10d | +4.90% | 80% | — |
| Upcomingin 52d | Sep 17 – Oct 7 | 20d | -3.27% | 80% | — |
| Upcomingin 54d | Sep 19 – Sep 29 | 10d | -2.34% | 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 HALO seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
HALO seasonality FAQ
What has historically been the best month to buy HALO stock?
Based on the last 10 years of price data, HALO's strongest seasonal window starts in October: Oct 25 to Nov 14, which ended higher in 10 of 10 years (100% win rate) with an average return of +16.37%. Past seasonal patterns do not guarantee future performance.
What is HALO's strongest seasonal pattern?
HALO's highest-win-rate pattern in our data is the Oct 25 – Nov 14 window (20-day hold): up in 10 of the last 10 years with an average move of +16.37%.
When has HALO historically performed worst?
HALO's weakest recurring window has been Oct 21 to Oct 31, declining in 9 of 10 years with an average return of -2.74%.
How reliable are HALO's seasonal patterns?
Each HALO pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. HALO currently shows 828 recurring windows (545 bullish, 283 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is HALO stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Halozyme's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where HALO 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.