372.07
price up icon12.62%   41.70
after-market Handel nachbörslich: 379.90 7.83 +2.10%
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Ciena Corp Aktie (CIEN) Neueste Nachrichten

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Jul 28, 2026

CIEN Looks 282.7% Overvalued on GF Value™ - GuruFocus

Jul 28, 2026
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Jul 28, 2026

Estate Counselors LLC Sells 11,236 Shares of Ciena Corporation $CIEN - MarketBeat

Jul 28, 2026
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Jul 28, 2026

Needham reiterates Ciena stock rating on Verizon fiber deal - Investing.com

Jul 28, 2026
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Jul 28, 2026

Bank of Nova Scotia Boosts Holdings in Ciena Corporation $CIEN - MarketBeat

Jul 28, 2026
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Jul 27, 2026

Ciena Corp (CIEN) Shares Fall 3.5% -- GF Value Says Still Overva - GuruFocus

Jul 27, 2026
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Jul 27, 2026

Ciena (NYSE:CIEN) Shares Down 7.1%Time to Sell? - MarketBeat

Jul 27, 2026
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Jul 27, 2026

Ciena's Q3 2026 Earnings: What to Expect - Barchart.com

Jul 27, 2026
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Jul 27, 2026

Sona Asset Management US LLC Buys Shares of 4,000 Ciena Corporation $CIEN - MarketBeat

Jul 27, 2026
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Jul 27, 2026

Ciena Corp (CIEN) Risk Assessment: Volatility, Financial Risk & Investment Risk - TradingKey

Jul 27, 2026
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Jul 27, 2026

Lombard Odier Asset Management Switzerland SA Invests $2.35 Million in Ciena Corporation $CIEN - MarketBeat

Jul 27, 2026
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Jul 27, 2026

PNC Financial Services Group Inc. Grows Holdings in Ciena Corporation $CIEN - MarketBeat

Jul 27, 2026
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Jul 27, 2026

Dai ichi Life Insurance Company Ltd Sells 3,289 Shares of Ciena Corporation $CIEN - MarketBeat

Jul 27, 2026
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Jul 27, 2026

Ardmore Road Asset Management LP Takes $35.33 Million Position in Ciena Corporation $CIEN - MarketBeat

Jul 27, 2026
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Jul 27, 2026

CIEN|Ciena Corp|Price:331.335|Chg%:-45.935 - TradingKey

Jul 27, 2026
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Jul 26, 2026

Ciena Corp (CIEN) Cash Flow - TradingKey

Jul 26, 2026
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Jul 26, 2026

Sei Investments Co. Sells 104,622 Shares of Ciena Corporation $CIEN - MarketBeat

Jul 26, 2026
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Jul 25, 2026

Ciena Corp (CIEN) Dividends & Stock Splits: Historical Payouts and Event Timeline - TradingKey

Jul 25, 2026
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Jul 25, 2026

Ciena Corporation (CIEN) Stock Price, News, Quote & History - Yahoo! Finance Canada

Jul 25, 2026
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Jul 25, 2026

Ciena Corp (CIEN) Valuation: PE, PB & Fair Value Analysis - TradingKey

Jul 25, 2026
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Jul 25, 2026

Is Ciena's Recent Surge Sustainable Amidst Insider Selling - Kavout | AI

Jul 25, 2026
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Jul 24, 2026

A Look at Ciena Corp (CIEN) After 4.1% Decline -- GF Value $98.3 - GuruFocus

Jul 24, 2026
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Jul 24, 2026

Why Ciena (CIEN) Stock Is Down Today - Quiver Quantitative

Jul 24, 2026
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Jul 24, 2026

Arrowstreet Capital Limited Partnership Sells 848,358 Shares of Ciena Corporation $CIEN - MarketBeat

Jul 24, 2026
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Jul 24, 2026

CIEN|Ciena Corp|Price:377.145|Chg%:-13.815 - TradingKey

Jul 24, 2026
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Jul 23, 2026

MD-based Ciena relocating from Anne Arundel to Howard - Maryland Daily Record

Jul 23, 2026
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Jul 23, 2026

Fast-growing public company to move headquarters to Maple Lawn - The Business Journals

Jul 23, 2026
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Jul 23, 2026

First Trust Advisors LP Lowers Stock Holdings in Ciena Corporation $CIEN - MarketBeat

Jul 23, 2026
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Jul 23, 2026

10,239 Shares in Ciena Corporation $CIEN Acquired by Andra AP fonden - MarketBeat

Jul 23, 2026
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Jul 22, 2026

Ciena (NYSE:CIEN) Nears A Rare Growth Milestone - Kalkine Media

Jul 22, 2026
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Jul 22, 2026

Buy 3 Top-Ranked AI Giants on the Dip Amid Short-Term Price Upside - TradingView

Jul 22, 2026
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Jul 22, 2026

Westpac Banking Corp Has $4.01 Million Stake in Ciena Corporation $CIEN - MarketBeat

Jul 22, 2026
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Jul 22, 2026

Ciena Corp. (NYSE:CIEN) Nears Perfect Score on Navellier’s Eight Pillars of High Growth Investing - ChartMill

Jul 22, 2026
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Jul 22, 2026

KBC Group NV Increases Stock Holdings in Ciena Corporation $CIEN - MarketBeat

Jul 22, 2026
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Jul 22, 2026

Nvidia Reportedly Spending $10 Billion on Dark Fiber, Sparking Rebound in Optical Networking Stocks - finance.biggo.com

Jul 22, 2026
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Jul 21, 2026

Daily Brief United States: Meta, X-Energy, Microsoft Corp, Ciena Corp, JPMorgan Chase & Co, Okta , Crude Oil, ClearSign Technologies , Comstock , Copart Inc and more - Smartkarma

Jul 21, 2026
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Jul 21, 2026

Ciena Corp (CIEN) Shares Surge 7.9% -- What GF Score of 72 Tells Investors - GuruFocus

Jul 21, 2026
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Jul 21, 2026

Titan Global Capital Management USA LLC Sells 49,257 Shares of Ciena Corporation $CIEN - MarketBeat

Jul 21, 2026
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Jul 21, 2026

Mediolanum International Funds Ltd Purchases New Shares in Ciena Corporation $CIEN - MarketBeat

Jul 21, 2026
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Jul 21, 2026

Convergence Investment Partners LLC Has $6.70 Million Position in Ciena Corporation $CIEN - MarketBeat

Jul 21, 2026
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Jul 20, 2026

Ciena Corporation $CIEN Shares Sold by California Public Employees Retirement System - MarketBeat

Jul 20, 2026
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Jul 19, 2026

2,977 Shares in Ciena Corporation $CIEN Acquired by Precision Wealth Strategies LLC - MarketBeat

Jul 19, 2026
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Jul 19, 2026

3,756 Shares in Ciena Corporation $CIEN Acquired by Hanseatic Management Services Inc. - MarketBeat

Jul 19, 2026
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Jul 19, 2026

Gage Brodie, CIENA SVP, sells $538,980 in company stock By Investing.com - Investing.com Australia

Jul 19, 2026
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Jul 18, 2026

John G Ullman & Associates Inc. Sells 4,100 Shares of Ciena Corporation $CIEN - MarketBeat

Jul 18, 2026
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Jul 18, 2026

Dorsey Wright & Associates Makes New Investment in Ciena Corporation $CIEN - MarketBeat

Jul 18, 2026
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Jul 18, 2026

Bank of New York Mellon Corp Decreases Stock Holdings in Ciena Corporation $CIEN - MarketBeat

Jul 18, 2026
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Jul 18, 2026

SA Large Cap Growth Index Portfolio's Ciena Corp(CIEN) Holding History - GuruFocus

Jul 18, 2026
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Jul 17, 2026

VIP INDEX 500 PORTFOLIO's Ciena Corp(CIEN) Holding History - GuruFocus

Jul 17, 2026
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Jul 17, 2026

Ciena SVP David Rothenstein sells $1.05 million in stock By Investing.com - Investing.com South Africa

Jul 17, 2026
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Jul 17, 2026

Ciena CEO Gary B. Smith sells $1.24m in company stock - Investing.com Australia

Jul 17, 2026
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Jul 17, 2026

Ciena Corp SVP Dino DiPerna sells $351,235 in stock By Investing.com - Investing.com Nigeria

Jul 17, 2026
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Jul 17, 2026

Ciena CEO Gary B. Smith sells $1.24m in company stock By Investing.com - Investing.com South Africa

Jul 17, 2026
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Jul 17, 2026

A Look at Ciena Corp (CIEN) After 3.7% Decline -- GF Value $97.8 - GuruFocus

Jul 17, 2026
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Jul 17, 2026

Gage Brodie, CIENA SVP, sells $538,980 in company stock - Investing.com UK

Jul 17, 2026
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Jul 17, 2026

Form 4 Ciena Corp For: 17 July By Investing.com - Investing.com Nigeria

Jul 17, 2026
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Jul 17, 2026

Form 4 Ciena Corp For: 17 July - Investing.com India

Jul 17, 2026
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Jul 17, 2026

Ciena Corp (NYSE: CIEN) CEO sells 2,952 shares in Rule 10b5-1 trade - Stock Titan

Jul 17, 2026
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Jul 17, 2026

Ciena SVP David Rothenstein sells $1.05 million in stock - Investing.com

Jul 17, 2026
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Jul 17, 2026

Ciena Corp SVP Dino DiPerna sells $351,235 in stock - Investing.com

Jul 17, 2026
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Jul 17, 2026

Ciena (NYSE: CIEN) strategy chief sells 2,500 shares under 10b5-1 - Stock Titan

Jul 17, 2026
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Jul 17, 2026

Ciena Corp (NYSE: CIEN) SVP Dino DiPerna sells 782 shares under 10b5-1 plan - Stock Titan

Jul 17, 2026
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