CIENA CORP (CIEN) Stock

TechnologyCommunication Equipment Website

CIEN has an Alpha Score of 40 out of 100 (weak), computed on Oct 28, 2026 from 3 of 4 sub-scores. 6 members of Congress disclosed 14 trades in CIEN since 2020: 8 purchases and 6 sales, most recently Gilbert Cisneros (purchase, May 29, 2026). 7 of the hedge funds AlphaScala tracks reported CIEN in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Atreides Management's at $337.76M. Company insiders reported 0 open-market buys and 22 sales on SEC Form 4 in the 90 days to Nov 2, 2026. Its trailing P/E ratio is 69.5 and its net margin 10.9% (key statistics as of Nov 3, 2026).

$284.34
-11.34%
Last price
Source: Finnhub
Alpha Score
40
Weak

What is CIEN's Alpha Score?

How it works →

Alpha Score of 40 reflects weak overall profile with moderate momentum, poor value, strong quality. Based on 3 of 4 signals – score is capped at 90 until remaining data ingests.

Momentum
54
Weak
Value
0
Poor
Quality
79
Strong

Computed from 3 of 4 sub-scores; a sub-score is left out when its inputs are missing, and the composite is capped accordingly.

Computed Oct 28, 2026

A rules-based research rating, not a recommendation to buy or sell.

Which members of Congress traded CIENA CORP (CIEN)?

Members
6
Disclosed trades
14
Purchases
8
Sales
6

Most recent: Gilbert Cisneros (purchase, May 29, 2026); records start Jul 24, 2020.

PoliticianTrade dateTypeAmount
Gil Cisneros
D-CA · House
2026-05-29purchase$1k – $15k
Gil Cisneros
D-CA · House
2026-05-14purchase$1k – $15k
Alan Armstrong
R-OK · Senate
2026-03-30purchase$1k – $15k
Alan Armstrong
R-OK · Senate
2026-03-27purchase$1k – $15k
Lisa McClain
R-MI · House
2025-10-31sale$1k – $15k
Lisa McClain
R-MI · House
2025-10-30purchase$1k – $15k
Lisa McClain
R-MI · House
2025-10-30sale$1k – $15k
Lisa McClain
R-MI · House
2025-10-15sale$1k – $15k

From STOCK Act periodic transaction reports. House filings as of Nov 1, 2026. Senate records here end Oct 21, 2026; later Senate trades are not included.

See all CIEN political trades →

Which hedge funds own CIEN?

From 13F filings
FundShares HeldPosition ValueChange vs prior Q
Atreides Management
Gavin Baker
689K$337.76M+2%
Citadel
Ken Griffin
214K$105.01M+52%
Point72
Steve Cohen
211K$103.27M-61%
Renaissance Technologies
Jim Simons (founder)
185K$90.64M+89%
Millennium Management
Israel Englander
166K$81.64M+83%
D.E. Shaw
David Shaw
133K$65.34M+1395%
Bridgewater Associates
Ray Dalio
101K$49.57M-30%

13F holdings as of Jun 30, 2026

Explore all tracked funds →

Are CIENA CORP insiders buying or selling?

SEC Form 4 filings
90 days to Nov 2, 2026
Buys
0
Sells
22
Net $
-$16.9M
Unique insiders
10
DateInsiderRoleTypeSharesValue
Oct 15, 26Rothenstein David MEVP & Chief Strategy OfficerSELL2.5K$870K
Oct 15, 26Smith Gary BPresident & CEOSELL3.0K$1.0M
Oct 15, 26Diperna DinoEVP & Chief R&D OfficerSELL445$153K
Oct 15, 26Diperna DinoEVP & Chief R&D OfficerSELL445$156K
Oct 15, 26Gage BrodieEVP & Chief Product & TechSELL1.2K$413K
Oct 1, 26Phipps JasonEVP & Chief Customer OfficerSELL2.6K$934K
Oct 1, 26Kosaraju SheelaEVP & Chief Legal OfficerSELL2.1K$746K
Oct 1, 26Graff Marc D.EVP & Chief Financial OfficerSELL97$34K
Oct 1, 26Smith Gary BPresident & CEOSELL3.0K$1.1M
Sep 25, 26Cumello JosephEVP & General Mgr.SELL1.6K$569K

SEC Form 4 filings as of Nov 2, 2026

See cluster-buy signals across all tickers →

What are CIEN's key statistics?

P/E Ratio
69.50
EPS (TTM)
4.48
Beta
1.35
Net Margin
10.87%
ROE
22.82%
Debt / Equity
0.58
52W High
$637.51
52W Low
$168.22

Key statistics as of Nov 3, 2026

How does CIEN's valuation compare with the Technology sector?

MetricCIENTechnology medianCompanies in median
P/E ratio69.533.2167
Net margin10.87%11.43%191
Return on equity22.82%15.27%194

Medians over the Technology stocks whose key statistics were refreshed in the last 35 days (newest Nov 3, 2026). P/E excludes loss-making companies.

What moved CIEN recently?

AI-written from the data on this page

Ciena climbs 5.7% as tech rally lifts high-PE names

Ciena added 5.67% on Wednesday to close at $361.34, extending a recent rebound from the stock's 52-week low of $159.56. The session gain came without a company-specific catalyst, tracking a broader technology rally. At 76 times trailing earnings, the multiple reflects the market's bet on sustained growth: revenue rose 32.6% year over year and EPS surged 362.8%, though net margin remains a thin 10.9%. The Alpha Score of 39.5 is dragged by a value sub-score of zero, while quality scores 78.5 and momentum 51.7. With the stock still 43% off its 52-week high of $637.51, the next quarterly report will test whether the growth narrative can support the current valuation.

CIEN price chart

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What does CIENA CORP do?

Ciena Corporation is a leading provider of optical networking systems, software, and services that enable high-speed, scalable, and secure connectivity for modern networks. The company specializes in transport, switching, aggregation, service delivery, and data traffic management solutions, powering cloud infrastructure, artificial intelligence applications, and digital transformation initiatives. Its offerings support a diverse range of clients, including communication service providers, web-scale operators, cable companies, government agencies, and large enterprises worldwide. Ciena Corporation focuses on delivering the industry's fastest network technologies to handle surging data demands across various sectors. Founded in 1992 and headquartered in Hanover, Maryland, it plays a critical role in the communications equipment industry by providing essential infrastructure for reliable, high-capacity optical transport.

CEO
Mr. Gary B. Smith
Employees
8,898
Market Cap
$45.48B
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