CIEN
CIENA CORP
NYSE · Technology · Communication Equipment · US
$349.54
+4.48%Price chart
Aug 12Aug 17Aug 20Aug 25Aug 28Sep 2Sep 8Sep 11
ValuationView details →
P/E (Fwd)
33.8x
EV/EBITDA
51.9x
Market Cap
$49.57B
MomentumView details →
1D Return
+4.48%
YTD Return
+50.34%
RSI (14)
43.9
ValuationView details →
P/E (Fwd)
33.8x
EV/EBITDA
51.9x
Market Cap
$49.57B
RSI (14)
43.9
MomentumView details →
1D Return
+4.48%
YTD Return
+50.34%
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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Ciena guided to at least 30% revenue growth for fiscal 2027, citing building AI networking demand and a backlog expected to top $10 billion despite supply constraints.2d agoCiena shares fell 15.2% over the week as of September 11, 2026, amid persistent supply and concentration risks despite surging AI-driven demand.2d agoEthio Telecom, Djibouti Telecom and Sudatel Group held a stakeholders' workshop in Addis Ababa to move their Horizon Cross-Border Terrestrial Fiber Initiative into the pre-commercialisation phase.2d ago