Morningstar
  • Markets
  • Stocks
  • Funds
  • ETFs
  • Bonds
  • Economy
Please select a location from the dropdown to view relevant share classes and investments. Your home market is currently
Don't see your home market? Change Edition
  • Home
  • Markets
  • Stocks
  • Funds
  • ETFs
  • Bonds
  • Economy
    • Personal Finance
    • Sustainable Investing
    • Screener
    • Watchlists
  • Sign Up for an Account

Ciena Corp CIEN Stock

Stock Price as of Sep 15, 2026 USD

Company Profile CIEN

Articles & Videos CIEN

  • 2 Tech Stocks to Avoid in Case Stocks Sell Off

    David Sekera, CFA Sep 9, 2026
  • September US Stock Market Outlook: How to Position Your Portfolio During a Risky Stage

    David Sekera, CFA Sep 7, 2026
  • Triple-Digit Club: A Wave of US Stocks Have Seen Huge Gains in 2026

    Lauren Solberg Jun 15, 2026
  • 10 US Stocks with the Largest Fair Value Estimate Increases During Q1 Earnings

    Bella Albrecht May 29, 2026
  • US Stock Market Outlook: It’s Time to Reallocate from Growth to Value

    David Sekera, CFA May 22, 2026
Learn more about our ratings

Morningstar Medalist Rating and Morningstar Star Rating for Funds. For more information about Morningstar's methodologies, please visit Compliance & Disclosures .

Morningstar
    About Us
  • Our History
  • Corporate Site
  • Our Signature Methodologies
  • Careers
    Contact
  • Global Contacts
    Help
  • Contact Support
  • Sites Updates

© Copyright 2026 Morningstar, Inc. All rights reserved.

  • Terms & Conditions
  • Privacy Policy
  • Disclosures
  • Corrections