349.00 USD
↘ 0.54 (0.15%)AFTER HOURS (AS OF Fri 08:15 PM EDT)
CIEN Stock After Hours
Ciena Corporation
CIENNYSE • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
CIEN last traded at $349.00 after hours, down $0.54 (0.15%) from its regular-session close of $349.54.
📅 CIEN is expected to report earnings around Dec 10, 2026 before the open (estimated), with an estimated EPS of $2.05. CIEN earnings details →
CIEN After Hours Chart
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, CIEN has had 39 qualifying gap events (gaps of 5% or more at the open) — 20 gap-ups and 19 gap-downs. Gap-ups averaged +8.9%, 80% have fully filled, median time to fill 3.5 trading days. Gap-downs averaged -7.6%, 74% have fully filled, median time to fill 2 trading days. Most recent: a -5.3% gap down on Aug 18, 2026, still unfilled. CIEN has 1 unfilled gap from the past 60 days — a -5.3% gap down on Aug 18, 2026, currently 26% retraced. Average 20-trading-day return after a CIEN gap up: +2.67%. After a gap down: +8.15%.
Gap Ups20 events
Fill Rate
80.0%
Avg Gap
8.9%
Avg 50% Fill
3d
Avg Fill
3.5d
Gap Downs19 events
Fill Rate
73.7%
Avg Gap
7.6%
Avg 50% Fill
1d
Avg Fill
2d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 60% | 75% | 75% | 85% |
| fills 50% | 30% | 60% | 60% | 70% |
| fills 75% | 30% | 55% | 55% | 60% |
| fills 100% | 5% | 45% | 50% | 55% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 68% | 84% | 89% | 89% |
| fills 50% | 42% | 63% | 68% | 74% |
| fills 75% | 32% | 63% | 68% | 74% |
| fills 100% | 32% | 58% | 58% | 63% |
Active Unfilled Gaps (past 60 days)
26 days ago
2026-08-18
Gap %
-5.30%
Gap From
$445.18
% vs Current
+27.36%
retraced 26% to $427.74
Complete Gap History — 39 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 26 days ago | $445.18 | -5.30% | Open | — | — | 26% | 26% | 26% | 26% |
| 2026-08-12 | $387.53 | +6.96% | Filled | 5d | 8d | 20% | 84% | 100% | 100% |
| 2026-08-04 | $390.76 | +7.25% | Filled | 2d | 3d | 50% | 100% | 100% | 100% |
| 2026-07-31 | $372.07 | +5.89% | Filled | 1d | 2d | 89% | 100% | 100% | 100% |
| 2026-07-30 | $330.37 | +8.75% | Filled | 26d | 26d | 15% | 15% | 15% | 15% |
| 2026-07-28 | $377.27 | -5.93% | Filled | 3d | 4d | 11% | 100% | 100% | 100% |
| 2026-06-23 | $460.33 | -5.07% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-06-15 | $445.98 | +5.37% | Filled | 1d | 2d | 93% | 100% | 100% | 100% |
| 2026-06-04 | $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 after-hours price?
Ciena (CIEN) is trading at $349.00 after hours, down $0.54 (0.15%) from its regular-session close of $349.54.
Why is CIEN moving after hours?
CIEN is down 0.15% in after-hours trading. Moves in this session almost always follow something released after the 4:00 PM ET close — an earnings report, guidance, a filing, or news — and trade on far thinner volume than the regular session, so the size of the move can overstate what the market will settle on at the next open.
When does CIEN after-hours trading start and end?
After-hours trading in CIEN on the NYSE runs from 4:00 PM to 8:00 PM ET on trading days, immediately after the regular session closes. Not every broker offers the full window, and liquidity thins sharply after about 6:30 PM ET.
Will CIEN's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and CIEN's gap history is the best guide to what happens next: 80% of CIEN gap-ups have fully filled, and 74% of gap-downs have filled over the past 5 years. Fill rates this high mean a large after-hours move is more often faded than extended.
When does CIEN report earnings?
CIEN is expected to report earnings around Dec 10, 2026 before the open (estimated), with an estimated EPS of $2.05. Earnings are the most common cause of a large after-hours move, since most companies report after the close.