Now Live: Cboe Europe real-time data for all major European stocks.
opens in 2d 4h 50m
Market closed

Pre-market opens in 1 day 23 hours 20 minutes
Main market opens in 2 days 4 hours 50 minutes

04:39
00:00
23:59

Trading Hours (Monday - Friday):

Pre-market
04:00 - 09:30
Main market
09:30 - 16:00
Post-market
16:00 - 20:00
All times are displayed in the America/New_York timezone (EDT, UTC-04:00).
443.93991 USD
30.1309
7.28%
Last update Apr 2, 4:29 PM BST
Market closed
Day range
390.010010
451
Previous close
413.80899
Open
395.14001
Access this stock data via API
Subscribe
Ciena Corporation
443.94
30.13
7.28%

Holders

Fund holders

Name Date reported Shares Value % Held
Fidelity Mt. Vernon Street Trust-Fidelity Growth Company Fund Feb 28, 2026 6.8M 3.0B 4.8%
iShares Trust-iShares Core S&P Mid-Cap ETF Jan 31, 2026 4.5M 2.0B 3.2%
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund Dec 31, 2025 4.4M 2.0B 3.1%
VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund Dec 31, 2025 3.2M 1.4B 2.3%
JPMorgan Trust II-JPMorgan Large Cap Growth Fund Dec 31, 2025 2.9M 1.3B 2.0%
Fidelity Mt. Vernon Street Trust-Fidelity Growth Company K6 Fund Feb 28, 2026 1.9M 862.6M 1.4%
VANGUARD INDEX FUNDS-Vanguard Small-Cap Growth Index Fund Dec 31, 2025 1.8M 801.7M 1.3%
Fidelity Concord Street Trust-Fidelity 500 Index Fund Feb 28, 2026 1.8M 796.9M 1.3%
Fidelity Mt. Vernon Street Trust-Fidelity Series Growth Company Fund Feb 28, 2026 1.8M 782.5M 1.3%
NEW ECONOMY FUND Dec 31, 2025 1.7M 744.9M 1.2%
Access Holders data via our API — starting from the Ultra plan (individual) and the Enterprise plan (business) and above.
Market closed

Pre-market opens in 2 days 21 hours 35 minutes
Main market opens in 2 days 22 hours 20 minutes

09:39
00:00
23:59

Trading Hours (Monday - Friday):

Pre-market
07:15 - 08:00
Main market
08:00 - 16:30
Post-market
16:30 - 17:15
All times are displayed in the Europe/London timezone (BST, UTC+01:00).