438.00 USD
↗ 9.78 (2.28%)PRE MARKET (AS OF 05:29 AM EDT)
CIEN Stock Premarket
Ciena Corporation
CIENNYSE • USD
Market: OPEN
Premarket trading runs 4:00 AM – 9:30 AM ET.
CIEN last traded at $438.00 in premarket, up $9.78 (2.28%) from its previous close of $428.22.
📅 CIEN is expected to report earnings around Sep 3, 2026 before the open (estimated), with an estimated EPS of $1.73. CIEN earnings details →
CIEN Premarket Chart
CIEN Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, CIEN has had 32 qualifying gap events (gaps of 5% or more at the open) — 16 gap-ups and 16 gap-downs. Gap-ups averaged +9.3%, 75% have fully filled, median time to fill 3.5 trading days. Gap-downs averaged -8%, 75% have fully filled, median time to fill 2 trading days. Most recent: a +5.4% gap up 7 days ago, which filled in 2 trading days. CIEN has 1 unfilled gap from the past 60 days — a -11% gap down on Jun 4, 2026, currently 0% retraced. Average 20-trading-day return after a CIEN gap up: +6.02%. After a gap down: +11.21%.
Gap Ups16 events
Fill Rate
75.0%
Avg Gap
9.3%
Avg 50% Fill
3d
Avg Fill
3.5d
Gap Downs16 events
Fill Rate
75.0%
Avg Gap
8.0%
Avg 50% Fill
1d
Avg Fill
2d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 63% | 75% | 75% | 88% |
| fills 50% | 31% | 56% | 56% | 69% |
| fills 75% | 31% | 50% | 50% | 56% |
| fills 100% | 6% | 44% | 44% | 50% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 69% | 81% | 88% | 88% |
| fills 50% | 44% | 63% | 69% | 75% |
| fills 75% | 31% | 63% | 69% | 75% |
| fills 100% | 31% | 56% | 56% | 63% |
Active Unfilled Gaps (past 60 days)
18 days ago
2026-06-04
Gap %
-10.96%
Gap From
$620.37
% vs Current
+44.87%
retraced 0% to $552.39
Complete Gap History — 32 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 7 days ago | $445.98 | +5.37% | Filled | 1d | 2d | 93% | 100% | 100% | 100% |
| 18 days ago | $620.37 | -10.96% | Open | — | — | 0% | 0% | 0% | 0% |
| 2026-04-08 | $447.88 | +6.17% | Filled | 5d | 44d | 14% | 77% | 77% | 77% |
| 2026-03-05 | $343.55 | -9.18% | Filled | 4d | 4d | 11% | 100% | 100% | 100% |
| 2026-01-20 | $243.42 | -5.86% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-12-11 | $221.85 | +6.54% | Filled | 1d | 2d | 96% | 100% | 100% | 100% |
| 2025-11-14 | $194.21 | -5.23% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-10-13 | $155.94 | +5.17% | Open | 2d | — | 48% | 62% | 62% | 62% |
| 2025-09-04 | $94.82 | +21.28% | Open | — | — | 20% | 20% | 20% | 20% |
| 2025-06-05 | $83.89 | -8.39% | Filled | 15d | 28d | 38% | 38% | 38% | 91% |
| 2025-05-12 | $74.74 | +5.14% | Filled | 18d | 18d | 37% | 37% | 38% | 100% |
| 2025-04-23 | $59.50 | +7.18% | Open | — | — | 34% | 34% | 34% | 34% |
| 2025-04-07 | $53.50 | -6.22% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-04-04 | $56.19 | -6.10% | Filled | 2d | 2d | 49% | 100% | 100% | 100% |
| 2025-04-03 | $65.03 | -8.33% | Filled | 5d | 14d | 31% | 75% | 75% | 100% |
| 2025-03-24 | $65.56 | +5.37% | Filled | 3d | 3d | 45% | 100% | 100% | 100% |
| 2025-03-11 | $65.53 | -5.72% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-01-27 | $96.62 | -12.44% | Open | 8d | — | 12% | 25% | 85% | 85% |
| 2024-12-12 | $73.21 | +14.29% | Filled | 29d | 54d | 16% | 16% | 16% | 33% |
| 2024-09-04 | $55.35 | +5.15% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-08-05 | $48.12 | -5.38% | Filled | 1d | 3d | 53% | 100% | 100% | 100% |
| 2024-06-12 | $45.92 | +5.42% | Filled | 3d | 4d | 38% | 100% | 100% | 100% |
| 2024-06-06 | $48.24 | +9.00% | Filled | 1d | 2d | 95% | 100% | 100% | 100% |
| 2024-03-07 | $61.96 | -13.25% | Open | — | — | 17% | 17% | 17% | 17% |
| 2023-08-31 | $43.16 | +12.63% | Filled | 18d | 25d | 15% | 19% | 19% | 52% |
| 2023-06-06 | $47.50 | -9.64% | Filled | 61d | 61d | 8% | 28% | 38% | 38% |
| 2023-04-06 | $51.86 | -6.42% | Filled | 1d | 2d | 61% | 100% | 100% | 100% |
| 2023-03-06 | $49.09 | +10.51% | Filled | 1d | 2d | 84% | 100% | 100% | 100% |
| 2022-12-08 | $43.24 | +16.81% | Open | 53d | — | 6% | 28% | 40% | 40% |
| 2022-09-01 | $50.74 | -6.39% | Open | — | — | 25% | 25% | 25% | 25% |
| 2022-06-02 | $51.35 | -8.47% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2021-12-09 | $62.20 | +12.42% | Filled | 29d | 60d | 11% | 11% | 11% | 11% |
Frequently Asked Questions
What is CIEN's premarket price?
Ciena (CIEN) is trading at $438.00 in premarket, up $9.78 (2.28%) from the previous close of $428.22.
Why is CIEN moving in premarket?
Ciena (CIEN) is up 2.28% from its previous close in premarket trading. Premarket moves are usually driven by company-specific news, earnings results, analyst rating or price-target changes, or broad market and sector sentiment. Check the latest CIEN premarket headlines and gap history below for the likely catalyst.
When does CIEN premarket trading start?
Premarket trading for CIEN on the NYSE runs from 4:00 AM to 9:30 AM Eastern Time, ahead of the regular session (9:30 AM – 4:00 PM ET). After-hours runs from 4:00 PM to 8:00 PM ET.
How often does CIEN fill its gaps?
Over the past 5 years, 75% of CIEN gap-ups have fully filled and 75% of gap-downs have filled. Median time to fill is 4 trading days for gap-ups and 2 trading days for gap-downs.
Does CIEN have any unfilled gaps?
Yes. CIEN has 1 unfilled gap from the past 60 days. The largest is a -11.0% gap down from Jun 4, 2026 and is currently 0% retraced.
What's the average return after a CIEN gap?
Based on 32 qualifying gap events over the past 5 years, the average 20-trading-day return after a CIEN gap up is +6.02%, and after a gap down is +11.21%.
When does CIEN report earnings?
CIEN is expected to report earnings around Sep 3, 2026 before the open (estimated), with an estimated EPS of $1.73.