CIEN
TechnologyCIENA Corp
$576.79+32.04 (+5.88%)PRE
Live · NYSE · May 9, Close
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Fundamentals
Market Cap$81.6B
P/E Ratio—
EPS—
Dividend Yield—
Dividend / Share—
ROE—
Profit Margin—
Debt / Equity—
Trading
Volume2.2M
Avg Volume (10D)—
Shares Outstanding141.4M
CIEN News
21 articles- Is It Too Late To Consider Ciena (CIEN) After A 119% Year To Date Surge?Yahoo Finance·May 9, 2026
- Why These Four Biotech Stocks Prove That Follow-On Entries Still Pop Up In Stock Market LeadersYahoo Finance·May 8, 2026
- Jim Cramer Highlights Dell Servers and Vertiv Cooling as Major AI ComponentsYahoo Finance·May 8, 2026
- Did Fresh Analyst Coverage and AI Optics Buzz Just Shift Ciena's (CIEN) Investment Narrative?Yahoo Finance·May 8, 2026
- Assessing Ciena (CIEN) Valuation After Analyst Upgrades And AI Infrastructure OptimismYahoo Finance·May 8, 2026
- The Zacks Analyst Blog Highlights Micron Technology, Ciena, Seagate Technology, Five Below and Murphy USAYahoo Finance·May 8, 2026
- Applied Optoelectronics Crashes 14%, Coherent Slides 10%, Lumentum Falls 7% as Optics Trade Cools247 Wall St·May 7, 2026
- Rothschild & Co Redburn Initiates Coverage of Ciena Corporation (CIEN)Yahoo Finance·May 7, 2026
- Ciena Announces Reporting Date and Web Broadcast for Fiscal Second Quarter 2026 ResultsYahoo Finance·May 7, 2026
- Grab These 5 Large-Cap Growth Stocks in May to Tap Wall Street RallyYahoo Finance·May 7, 2026
- Is Ciena (CIEN) One Of The Mid-Cap Stocks That Are On Fire Right Now?Yahoo Finance·May 7, 2026
- COHR Stock: A Practical Guide to Playing AI OpticsYahoo Finance·May 6, 2026
- COHR Stock Outlook: Is the AI Optics Upcycle Enough at 48x EPS?Yahoo Finance·May 6, 2026
- Enrich Your Portfolio With These 4 Top-Ranked Liquid StocksYahoo Finance·May 6, 2026
- For Ciena Insiders, Selling US$3.8m Of Shares Was A Smart MoveYahoo Finance·May 6, 2026
- AAOI Stock Before Q1 Earnings: Smart Buy or Risky Move?Yahoo Finance·May 5, 2026
- Why Ciena (CIEN) is Poised to Beat Earnings Estimates AgainYahoo Finance·May 5, 2026
- These Nine S&P 500 Stocks Have Doubled In 2026. No. 3 Reports On Tuesday.Yahoo Finance·May 4, 2026
- Ciena Rejoins S&P 500 As AI Data Center Demand Lifts ValuationYahoo Finance·May 2, 2026
- Lumentum Q3 Earnings Loom: Buy or Sell the Stock Ahead of Results?Yahoo Finance·May 1, 2026
- Cramer Names 'The Stocks That Got Away' — SanDisk Is Number 1Benzinga·Apr 23, 2026
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Price Data
Open$563.00
Previous Close$544.75
Day High$583.78
Day Low$550.06
52 Week High—
52 Week Low—
Fundamentals
Market Cap$81.6B
P/E Ratio—
EPS—
Dividend Yield—
Dividend / Share—
ROE—
Profit Margin—
Debt / Equity—
Trading
Volume2.2M
Avg Volume (10D)—
Shares Outstanding141.4M
About CIENA Corp
Ciena is a telecommunications equipment provider focused on optical transport technologies, with clients in a number of industries such as communication services providers, web-scale providers, cable operators, government, and large enterprises worldwide. The company provides equipment, software, and services that support transport, switching, aggregation, service delivery, and data traffic management.
TechnologyTELEPHONE & TELEGRAPH APPARATUS
Company Details
Security TypeStock
ExchangeNYSE
Currency—
Round Lot—
SICTELEPHONE & TELEGRAPH APPARATUS
CIK—
Composite FIGI—
Share Class FIGI—