CIEN
Ciena Corporation

Ciena CorporationCIEN

Technology · Communication Equipment
243.39USD
+5.45%
Nov 08, 2026
CIEN overview ready
Supplier of high-capacity optical transport and network automation to cloud providers
Ciena is a direct infrastructure supplier of high-capacity coherent optical transport, data-center interconnect, routing and switching, network automation, and related services used by cloud providers, service providers, and network operators.
Primary theme is lagging
Optical / Photonics is lagging (-26.6pp vs SPY over 21 sessions; 1 of 12 members ahead of SPY).
Price trend is broken
Longer-term context reads trend under pressure, with a near-term setup of failed reclaim.
The tactical setup reads failed reclaim, but the weekly structure is broken.
Fair valuation
The price broadly reflects how much growth and cash flow it delivers per turn of revenue multiple, with upside and risk reasonably balanced.
Unremarkable fundamentals
Primary risk
Technology obsolescence risk due to rapid innovation.
Market Nov 6Filing Aug 1Price action Nov 7Research Oct 1

Conviction Level

PriceAction1.4BusinessPerformance7.0BusinessQuality7.6Valuation4.4ThemeMomentum1.0Improving — Revenue is growing at a steady pace (+37% year over year). Diluted EPS is up 423% year over year at $1.83. — From filed financial statements. Describes the recent trajectory of the business, not the stock. 20 of the 100 Conviction points.

Conviction uses Price Action, Business Performance, Business Quality, Valuation. Theme Momentum is research context, not an input.

Theme momentumPrimary theme · group context, not entry timing
vs SPY
−26.6pp
Theme return
−31.6%
Beating SPY
1 of 12
21 sessions to Nov 6, 2026 · Theme Leadership V2
Price
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Price Action

Price trend is broken
Longer-term context reads trend under pressure, with a near-term setup of failed reclaim.
The tactical setup reads failed reclaim, but the weekly structure is broken.
EntryDamaged / breakdown

The technical structure itself is broken across timeframes — the weakest entry profile.

Key Financials

Market Cap
$34.5B
Avg Volume (60D)
3.1M
60 sessions
Revenue Growth YoY
+18.8%
FY2025 vs FY2024
Gross Margin
+44.1%
Trailing twelve months
Operating Margin
+12.3%
Trailing twelve months
Free Cash Flow Yield
+2.4%
Distance from 200DMA
-40.0%
Next Earnings
2026-12-10
P/E
52.7x
EV / Sales
5.8x
Market metrics as of Nov 6, 2026
Financial results for the period ended Aug 1, 2026
Filed balance-sheet data as of Aug 1, 2026

Business Performance

Improving

Revenue is growing at a steady pace (+37% year over year). Diluted EPS is up 423% year over year at $1.83.

Latest reported: Q3 FY2026, ended Aug 1
Revenue growthGrowing
+37%
$1.67B in Q3 FY2026 · YoY
YoY growth, last 4 quarters
  1. +20%
  2. +33%
  3. +40%
  4. +37%
Earnings growthGrowing
+423%
Diluted EPS $1.83 vs $0.35 a year earlier · GAAP
Diluted EPS YoY (GAAP), last 4 quarters
  1. -48%
  2. +232%
  3. n/a
  4. +423%
Operating marginExpanding
18.0%
+12.0 pp YoY · gross margin 45.4% (+4.2 pp)

Business Quality

7.6 / 10

How well the business earns on its assets, converts earnings to cash and funds itself — read from its SEC filings.

Fundamentals & Valuation

Two of the three valuation perspectives say fair; peers is the dissenting view.
Ciena Corporation has a Fair valuation stance because the price broadly reflects how much growth and cash flow it delivers per turn of revenue multiple, with upside and risk reasonably balanced.

What changed

  • CIEN fell 10.2% in one session
    CIEN closed -10.2% while the broad market was close to flat (-1.1%).
    2026-10-14
  • CIEN fell 9.9% in one session
    CIEN closed -9.9% while the broad market was close to flat (-0.1%).
    2026-10-12

Company Research

Thesis
Ciena is a direct infrastructure supplier of high-capacity coherent optical transport, data-center interconnect, routing and switching, network automation, and related services used by cloud providers, service providers, and network operators.
Opportunity
Moderate opportunity
AI-cluster and cloud-network buildouts require rapidly expanding bandwidth, optical transport, switching, and interconnect capacity for scale-up, scale-out, and data-center-to-data-center connectivity.
Key risk
Technology obsolescence risk due to rapid innovation.

Economic classification

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Business & Markets

Technology · Communication Equipment
What they do

Ciena Corporation designs, manufactures, and sells network hardware, software, and services globally to network operators, cloud providers, and service providers. It operates through segments including Networking Platforms, Platform Software and Services, Blue Planet Automation Software and Services, and Global Services.

How it earns

Revenue is generated primarily through transactional sales of hardware and software products, supplemented by recurring and project-based services.

Products & services
Optical networking equipment
Routing and switching products
Network automation software
Network services
Customers & end markets
Cloud providers
Telecommunications service providers
Network operators
Market position

Leader in high-capacity coherent optical transport and network automation solutions for cloud and service providers.

Demand drivers
Medium cyclicality

Demand depends on capital expenditure cycles of network operators and cloud providers, which can fluctuate with technology investment trends.

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