Collegium Pharmaceutical, Inc. (COLL) Seasonality
Recurring seasonal patterns for COLL — the calendar windows where Collegium Pharmaceutical, Inc. 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.
COLL seasonality at a glance
Over the last 10 years, COLL's strongest seasonal window has been Dec 21 – Jan 10: it ended higher in 9 of 10 years (90% win rate) with an average return of +7.51% across a 20-day hold. On the weak side, COLL has historically declined between May 21 – May 31, falling in 10 of 10 years (average -4.27%).
In total, our analysis finds 875 recurring seasonal windows for Collegium Pharmaceutical, Inc. — 471 bullish and 404 bearish. The next high-win-rate window, Aug 20 – Sep 9, opens in 24 days. These figures describe historical behaviour only — not a forecast.
COLL'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 13d ago | Jun 24 – Jul 14 | 20d | -5.12% | 80% | -1.57% |
| Completedended 14d ago | Jul 3 – Jul 13 | 10d | -4.36% | 80% | -5.97% |
| Upcomingin 24d | Aug 20 – Sep 9 | 20d | -3.31% | 80% | — |
| Upcomingin 24d | Aug 20 – Sep 19 | 30d | -2.76% | 80% | — |
| Upcomingin 31d | Aug 27 – Sep 6 | 10d | -1.55% | 80% | — |
| Upcomingin 37d | Sep 2 – Sep 12 | 10d | -2.32% | 80% | — |
| Upcomingin 56d | Sep 21 – Oct 11 | 20d | +8.42% | 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 COLL seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
COLL seasonality FAQ
What has historically been the best month to buy COLL stock?
Based on the last 10 years of price data, COLL's strongest seasonal window starts in December: Dec 21 to Jan 10, which ended higher in 9 of 10 years (90% win rate) with an average return of +7.51%. Past seasonal patterns do not guarantee future performance.
What is COLL's strongest seasonal pattern?
COLL's highest-win-rate pattern in our data is the Dec 21 – Jan 10 window (20-day hold): up in 9 of the last 10 years with an average move of +7.51%.
When has COLL historically performed worst?
COLL's weakest recurring window has been May 21 to May 31, declining in 10 of 10 years with an average return of -4.27%.
How reliable are COLL's seasonal patterns?
Each COLL pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. COLL currently shows 875 recurring windows (471 bullish, 404 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is COLL stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Collegium Pharmaceutical, Inc.'s price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where COLL 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.