Ciena (CIEN) Seasonality
Recurring seasonal patterns for CIEN — the calendar windows where Ciena 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.
CIEN seasonality at a glance
Over the last 10 years, CIEN's strongest seasonal window has been Nov 13 – Dec 13: it ended higher in 10 of 10 years (100% win rate) with an average return of +11.56% across a 30-day hold. On the weak side, CIEN has historically declined between Mar 21 – Apr 20, falling in 9 of 10 years (average -1.99%).
In total, our analysis finds 792 recurring seasonal windows for Ciena — 646 bullish and 146 bearish. The next high-win-rate window, Aug 3 – Aug 13, opens in 7 days. These figures describe historical behaviour only — not a forecast.
CIEN'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 15d ago | Jul 2 – Jul 12 | 10d | +2.46% | 80% | +9.06% |
| Completedended 15d ago | Jun 22 – Jul 12 | 20d | +2.58% | 80% | +0.08% |
| Upcomingin 7d | Aug 3 – Aug 13 | 10d | +1.75% | 80% | — |
| Upcomingin 27d | Aug 23 – Sep 2 | 10d | +2.23% | 80% | — |
| Upcomingin 36d | Sep 1 – Sep 11 | 10d | -1.32% | 80% | — |
| Upcomingin 36d | Sep 1 – Sep 21 | 20d | -1.98% | 80% | — |
| Upcomingin 37d | Sep 2 – Sep 22 | 20d | -1.38% | 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 CIEN seasonality in full
See the seasonal curve chart, filter by win rate and return, and track upcoming windows — free during beta.
CIEN seasonality FAQ
What has historically been the best month to buy CIEN stock?
Based on the last 10 years of price data, CIEN's strongest seasonal window starts in November: Nov 13 to Dec 13, which ended higher in 10 of 10 years (100% win rate) with an average return of +11.56%. Past seasonal patterns do not guarantee future performance.
What is CIEN's strongest seasonal pattern?
CIEN's highest-win-rate pattern in our data is the Nov 13 – Dec 13 window (30-day hold): up in 10 of the last 10 years with an average move of +11.56%.
When has CIEN historically performed worst?
CIEN's weakest recurring window has been Mar 21 to Apr 20, declining in 9 of 10 years with an average return of -1.99%.
How reliable are CIEN's seasonal patterns?
Each CIEN pattern is scored by its historical win rate — the share of the last 10 years it repeated in the same direction. CIEN currently shows 792 recurring windows (646 bullish, 146 bearish). Seasonality describes historical tendencies only; it is not a prediction, and past performance does not guarantee future results.
What is CIEN stock seasonality?
Stock seasonality is the tendency of a stock to perform in a similar way during the same period each year. By analysing Ciena's price history across many years, SeasonalityX identifies recurring calendar windows — exact start and end dates — where CIEN 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.