What is the 13F Pro Quality Score for CIEN?

13F Pro ranks CIENA CORP (CIEN) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View CIEN's current score at https://13fpro.ai/company/CIEN (free sign-up required for the full ranking).

Which hedge funds own the most CIEN stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of CIEN include FMR, BlackRock,, JPMORGAN CHASE & CO. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/company/CIEN as soon as new 13F filings post.

Where does 13F Pro source CIEN data?

All CIENA CORP fundamentals and ownership data come directly from SEC EDGAR. CIENA CORP files with the SEC under CIK 936395. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is CIEN in?

CIENA CORP (CIEN) is classified in the Technology sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/technology.

What drives CIEN's revenue?

Per CIENA CORP's latest 10-Q filed with the SEC on 2026-09-03, the biggest revenue drivers are: Networking Platforms ($1,355.7M, +44% YoY); Global Services ($193.6M, +21% YoY); Platform Software and Services ($98.7M, +10% YoY). Figures are extracted from the filing text and machine-verified against the document. Full breakdown at https://13fpro.ai/company/CIEN.

What are CIEN's largest expenses?

CIENA CORP's latest 10-Q reports these as the largest expense items: Research and development ($236.7M, +12% YoY); Selling and marketing ($154.0M, +4% YoY); General and administrative ($62.8M, +4% YoY). Sourced directly from SEC EDGAR filing text for Q3 FY2026 (quarter ended August 1, 2026).

How often is CIEN research updated on 13F Pro?

CIEN's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

CIENA CORP(CIEN)Stock Analysis

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SEC EDGAR: CIK 936395 CIEN stock profile & AI dashboard →

13F Pro Quality Score

72.9/100

Rank #143 of 2,961 stocksTOP 5%

View Technology peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Nov 14, 2026.

Revenue Growth

83.0/100

Profitability

74.1/100

Balance Sheet

84.5/100

Earnings Quality

61.6/100

Free Cash Flow

62.7/100

Institutional Flow

55.6/100

Revenue Scale

80.3/100

Dilution Risk

28.2/100

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Why CIEN Scores 73/100

exact factor attribution · 2026-09-11

CIEN's composite is driven by revenue growth and scale, held back by shareholder dilution. Bars show each factor's exact push vs. a median company, using the same weights the ranking engine applies.

Revenue growth

+6.6 pts

83th pct

Scale

+4.5 pts

80th pct

Profitability

+3.6 pts

74th pct

Capital efficiency

+3.5 pts

85th pct

Earnings growth

+2.4 pts

99th pct

Free cash flow

+1.9 pts

63th pct

Earnings quality

+1.2 pts

62th pct

Institutional flow

+0.3 pts

56th pct

Shareholder dilution

-1.1 pts

28th pct

Latest change (2026-09-03): 73 → 64 · ↓ Profit margin 67→40; ↓ Earnings growth 95→21; despite ↑ earnings_quality 74→94

Factor percentiles are cross-sectional ranks across the ~2,800-stock scored universe, computed from SEC EDGAR filings. Not investment advice.

Unusual Activity in CIEN

Events flagged as statistical outliers against CIEN's own multi-year baseline — not fixed dollar thresholds.

Score shock2026-09-03
CIEN quality score dropped 9 points (73→64) on a new filing
View source filing →

CIEN Stock Analysis & AI Quality Score

Data updated 2026-09-11

AI stock analysis and institutional research for CIENA CORP (CIEN), a Technology sector company. 13F Pro's AI-powered ranking engine scores CIEN at 72.9/100 on a 32-signal composite quality model, placing it at rank #143 of 2,961 stocks — the top 5% of the AI-ranked universe. CIEN scores in the top quartile across balance sheet strength (84.5), revenue growth (83.0), revenue scale (80.3). Shareholder dilution risk is elevated at 28.2/100, reflecting ongoing share issuance or stock-based compensation. Based on the latest XBRL financial filings (Q2 2026), CIENA CORP reports quarterly revenue of $1.7B, net income of $266.4M, free cash flow of $116.3M. Top institutional holders of CIEN by reported 13-F value include FMR, BlackRock, JPMORGAN CHASE, based on the most recent SEC filings. CIEN trades on the NYSE exchange and files with the SEC under CIK 936395. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate CIEN daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for CIENA CORP directly from SEC EDGAR. CIENA CORP's 13F Pro composite quality score has ranged between 39 and 73 since 2021, currently 72.9 — an improving long-term trajectory across 68 quarterly and live scoring snapshots.

✦

Fun facts about CIENA CORP

Quirks, history, and lore behind CIEN — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. technology company · mid-cap · listed on Nasdaq · headquartered in Maryland.
2
The Numbers
Annual revenue in the range of roughly $1 billion, with a customer base dominated by the world's largest telecom carriers and cloud providers.
3
The History
Founded in 1992, it rode the fiber-optic boom, nearly went under after the dot-com bust, and clawed back to become a backbone of modern optical networking.
4
The Secret
It doesn't make phones or consumer gadgets — it makes the optical networking hardware and software that lets carriers move massive amounts of data across continents at the speed of light.
5
The Lore
Its WaveLogic coherent optical chip technology is considered among the most advanced in the industry, and it counts most of the world's major Tier-1 carriers as repeat customers.
6
The Giveaway
Four letters, rhymes with a Mediterranean island — this optical networking specialist from Hanover, Maryland keeps the internet's fiber arteries humming.

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What's Driving CIEN's Business? Latest 10-Q Breakdown

✓ 25/25 datapoints verified

AI-extracted from CIENA CORP's 10-Q filed 2026-09-03 — Q3 FY2026 (quarter ended August 1, 2026). Every figure is machine-verified against the filing text on SEC EDGAR.

Ciena posted $1.7B revenue (+37% YoY) and $266M net income on 45.4% gross margin, driven by AI and cloud infrastructure demand; issued $2.9B convertible notes.

Biggest Revenue Drivers

Networking Platforms$1,355.7M+44% YoY

Optical networking products (6500 RLS, Waveserver systems, coherent pluggable transceivers) and routing/switching platforms.

Global Services$193.6M+21% YoY

Implementation, maintenance/support/learning, and advisory/enablement services.

Biggest Revenue Drivers

Total revenue: $1.67B+37% YoY

Networking Platforms$1,355.7M+44% YoY

Optical networking products (6500 RLS, Waveserver systems, coherent pluggable transceivers) and routing/switching platforms.

Global Services$193.6M+21% YoY

Implementation, maintenance/support/learning, and advisory/enablement services.

Platform Software and Services$98.7M+10% YoY

Navigator Network Control Suite software and platform services subscriptions.

Blue Planet Automation Software and Services$23.2M-17% YoY

Orchestration and automation software, offset by lower unified assurance/analytics sales.

Largest Expense Items

Research and development$236.7M+12% YoY

Higher headcount from Nubis acquisition, engineering design, and WaveLogic coherent modem technology advancement.

Selling and marketing$154.0M+4% YoY

Increased employee-related compensation costs.

General and administrative$62.8M+4% YoY

Increases in professional services.

Margins: Gross margin expanded 410 bps to 45.4%, driven by cost reductions, pricing optimization, product mix shifts, tariff recoveries, and higher-margin implementation services, partially offset by lower manufacturing efficiencies and higher inventory obsolescence provisions.

Watch Items from the Filing

Cloud provider concentration: two cloud providers represent 43% of Q3 revenue ($696M of $1.67B)—Cloud Provider A 29% and Cloud Provider B 13%.
Supply chain: $3.3B in firm purchase order commitments to contract manufacturers and component suppliers; some orders non-cancellable with prepayment obligations.
Blue Planet segment declining: revenue down 17% YoY in Q3; nine-month loss of $6.2M vs. $19.3M profit year-ago, signaling weakness in orchestration and assurance software.
New convertible debt structure: $2.875B 0% Notes due 2031 with 3.9M shares underlying; $988.4M hedge cost and $873.4M warrant proceeds offset dilution but increase complexity.

AI-extracted and verified against SEC EDGAR filing text. Not investment advice.

Read the full 10-Q on SEC EDGAR →Share on X

Revenue

Q2 2026

$1.7B

Net Income

Q2 2026

$266.4M

Free Cash Flow

Q2 2026

$116.3M

ROIC

Q2 2026

19.2%

Period

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro

Revenue

+18.8% YoY

$4.77BFY 2025

FY22 $3.63BFY23 $4.39BFY24 $4.01BFY25 $4.77B

Net Income

+46.9% YoY

$123.3MFY 2025

FY22 $152.9MFY23 $254.8MFY24 $84.0MFY25 $123.3M

Operating Income

+18.6% YoY

$197.5MFY 2025

FY22 $222.8MFY23 $357.5MFY24 $166.6MFY25 $197.5M

EPS (Diluted)

+46.6% YoY

$0.85FY 2025

FY22 $1.00FY23 $1.71FY24 $0.58FY25 $0.85

Total Assets

+4.0% YoY

$5.86BFY 2025

FY22 $5.07BFY23 $5.60BFY24 $5.64BFY25 $5.86B

Total Debt

-0.6% YoY

$1.54BFY 2025

FY22 $1.07BFY23 $1.56BFY24 $1.54BFY25 $1.54B

Op. Cash Flow

+56.7% YoY

$806.1MFY 2025

FY22 $-167.8MFY23 $168.3MFY24 $514.5MFY25 $806.1M

Free Cash Flow

+76.1% YoY

$665.3MFY 2025

FY22 $-258.6MFY23 $62.1MFY24 $377.9MFY25 $665.3M

Metric	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020
Revenue	$4.77B +18.8%	$4.01B -8.5%	$4.39B +20.8%	$3.63B +0.3%	$3.62B +2.5%	$3.53B
Net Income	$123.3M +46.9%	$84.0M -67.1%	$254.8M +66.7%	$152.9M -69.4%	$500.2M +38.4%	$361.3M
Operating Income	$197.5M +18.6%	$166.6M -53.4%	$357.5M +60.5%	$222.8M -55.0%	$495.4M +1.7%	$487.0M
EPS (Diluted)	$0.85 +46.6%	$0.58 -66.1%	$1.71 +71.0%	$1.00 -68.7%	$3.19 +37.5%	$2.32
Total Assets	$5.86B +4.0%	$5.64B +0.7%	$5.60B +10.5%	$5.07B +4.2%	$4.87B +16.4%	$4.18B
Total Debt	$1.54B -0.6%	$1.54B -0.7%	$1.56B +45.6%	$1.07B +56.1%	$684.2M -0.9%	$690.2M
Operating Cash Flow	$806.1M +56.7%	$514.5M +205.7%	$168.3M +200.3%	$-167.8M -131.0%	$541.6M +9.7%	$493.7M
Free Cash Flow	$665.3M +76.1%	$377.9M +508.2%	$62.1M +124.0%	$-258.6M -156.0%	$462.1M +12.4%	$411.0M

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Available Research

13F Pro tracks comprehensive data for CIENA CORP including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of CIEN

FMR LLC
$9.4B19,113,538 sh
BlackRock, Inc.
$6.2B12,718,494 sh
JPMORGAN CHASE & CO
$5.4B11,206,209 sh
VANGUARD CAPITAL MANAGEMENT LLC
$4.5B9,233,803 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$3.8B7,680,665 sh
STATE STREET CORP
$3.3B6,680,578 sh
PRICE T ROWE ASSOCIATES INC /MD/
$2.0B4,071,401 sh
GEODE CAPITAL MANAGEMENT, LLC
$1.6B3,370,462 sh
AMERICAN CENTURY COMPANIES INC
$908.4M1,851,788 sh
BANK OF AMERICA CORP /DE/
$877.4M1,788,582 sh

Fund	Value	Shares
FMR LLC	$9.4B	19,113,538
BlackRock, Inc.	$6.2B	12,718,494
JPMORGAN CHASE & CO	$5.4B	11,206,209
VANGUARD CAPITAL MANAGEMENT LLC	$4.5B	9,233,803
VANGUARD PORTFOLIO MANAGEMENT LLC	$3.8B	7,680,665
STATE STREET CORP	$3.3B	6,680,578
PRICE T ROWE ASSOCIATES INC /MD/	$2.0B	4,071,401
GEODE CAPITAL MANAGEMENT, LLC	$1.6B	3,370,462
AMERICAN CENTURY COMPANIES INC	$908.4M	1,851,788
BANK OF AMERICA CORP /DE/	$877.4M	1,788,582

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Is CIEN a good stock to buy?

13F Pro's AI-powered analysis of CIENA CORP (CIEN) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Technology sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for CIEN are available on the CIEN stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing. CIEN is classified as a large company.

Which hedge funds own CIEN?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling CIEN. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of CIENA CORP's investment landscape.