Charles River Laboratories (CRL) Seasonality
Recurring seasonal patterns for CRL — the calendar windows where Charles River Laboratories 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.
CRL seasonality at a glance
Over the last 10 years, CRL's strongest seasonal window has been Jun 14 – Jul 14: it ended higher in 10 of 10 years (100% win rate) with an average return of +3.65% across a 30-day hold. On the weak side, CRL has historically declined between Aug 1 – Aug 11, falling in 8 of 10 years (average -4.22%).
In total, our analysis finds 715 recurring seasonal windows for Charles River Laboratories — 503 bullish and 212 bearish. The next high-win-rate window, Oct 20 – Oct 30, opens in 39 days. These figures describe historical behaviour only — not a forecast.
CRL'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 1d ago | Aug 31 – Sep 10 | 10d | -1.41% | 80% | -5.29% |
| Completedended 12d ago | Aug 20 – Aug 30 | 10d | +1.75% | 80% | +0.02% |
| Upcomingin 39d | Oct 20 – Oct 30 | 10d | -2.40% | 80% | — |
| Upcomingin 55d | Nov 5 – Nov 25 | 20d | +2.75% | 80% | — |
| Upcomingin 69d | Nov 19 – Dec 9 | 20d | +2.64% | 80% | — |
| Upcomingin 70d | Nov 20 – Dec 10 | 20d | +2.78% | 80% | — |
| Upcomingin 85d | Dec 5 – Dec 15 | 10d | +3.53% | 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 CRL seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
CRL seasonality FAQ
What has historically been the best month to buy CRL stock?
Based on the last 10 years of price data, CRL's strongest seasonal window starts in June: Jun 14 to Jul 14, which ended higher in 10 of 10 years (100% win rate) with an average return of +3.65%. Past seasonal patterns do not guarantee future performance.
What is CRL's strongest seasonal pattern?
CRL's highest-win-rate pattern in our data is the Jun 14 – Jul 14 window (30-day hold): up in 10 of the last 10 years with an average move of +3.65%.
When has CRL historically performed worst?
CRL's weakest recurring window has been Aug 1 to Aug 11, declining in 8 of 10 years with an average return of -4.22%.
How reliable are CRL's seasonal patterns?
Each CRL pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. CRL currently shows 715 recurring windows (503 bullish, 212 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is CRL stock seasonality?
Seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Charles River Laboratories's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where CRL 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.