CIEN
CIENA CORP
NYSE · Technology · Communication Equipment · US
$300.08
+5.54%Price chart
Oct 5Oct 8Oct 13Oct 16Oct 21Oct 26Oct 29Nov 3
Key dataNov 3, 2026
Open$293.20
From 52W high−52.14%
Volume3.15M
Market cap$42.55B
P/E (TTM)65.0x
P/S (TTM)7.1x
Div yield—
Key dataNov 3, 2026
Open
$293.20
From 52W high
−52.14%
Volume
3.15M
Market cap
$42.55B
ValuationView details →
P/E (Fwd)
25.0x
EV/EBITDA
41.3x
P/E (TTM)
65.0x
RSI (14)
38.2
MomentumView details →
1D Return
+5.54%
YTD Return
+26.40%
SummaryUpdated Aug 1, 2026
Ciena Corporation (NASDAQ:CIEN) is a Maryland-based telecommunications equipment manufacturer founded in 1992 and publicly traded since 1997. The company has evolved from its origins as an optical networking pioneer to become a leading provider of network infrastructure hardware, software, and services that enable the transport and management of data traffic across global communications networks. Ciena serves telecommunications service providers, cloud companies, government agencies, and enterprises worldwide, positioning itself at the center of the digital transformation driving increased demand for network capacity and performance.
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Latest newsMore news →
Space Norway AS announced a deal with CIENA CORP to upgrade the Svalbard Undersea Cable System and equip the upcoming Arctic Way Cable System with CIENA CORP optical technology.22d agoCIENA CORP is deploying 1.6Tb/s optical technology for Openreach.26d agoAngola Cables is upgrading capacity on its MONET and South Atlantic Cable System (SACS) submarine networks using Ciena's Waveserver platform with WaveLogic 6 Extreme coherent optics, enabling 800Gbps services on the US-Brazil-Angola route.36d ago