Ciena Corp

CIEN chart

Ciena Corp news

• Corning Earnings Show It’s Deeply Dependent on AI Demand. Why That Could Be Bad.

  Yahoo Finance · Oct 27, 1:53 PM EDT

• Bernstein sets USD 440 target for Ciena stock

  ad-hoc-news.de · Oct 27, 12:03 PM EDT

• Analyst explains why optical stocks are moving higher

  Yahoo Finance · Oct 27, 11:32 AM EDT

• The future of AI infrastructure: Midgard Infra and Ciena Interview at Capacity Europe 2026

  Capacity Media · Oct 27, 8:14 AM EDT

• Wall Street Zen upgrades Ciena stock to a Buy rating

  ad-hoc-news.de · Oct 27, 6:44 AM EDT

• Ciena Corporation $CIEN Shares Newly Bought by Deltec Asset Management LLC

  MarketBeat · Oct 27, 4:21 AM EDT

• Ciena Corp (CIEN) Shares Surge 4.9% -- What GF Score of 77 Tells Investors

  GuruFocus · Oct 26, 6:41 PM EDT

• From AT&T to Ciena: Tracking optical earnings in Q3 2026

  Lightwave Online · Oct 26, 12:05 PM EDT

• Ciena stock gains 4.45 percent to EUR 299.35 in trading

  ad-hoc-news.de · Oct 26, 11:12 AM EDT

• Ciena’s Board Opts for Patience Amid Tech Upheavals

  WSJ · Oct 26, 8:45 AM EDT

• Wall Street Zen upgrades Ciena stock to Buy

  ad-hoc-news.de · Oct 26, 6:26 AM EDT

• CIEN stock raised to Buy by Wall Street Zen, pre-market

  ad-hoc-news.de · Oct 26, 2:51 AM EDT

Ciena Corp key financials

Calendar-year figures as reported to the SEC in XBRL filings.

Recent SEC filings

• 10-Q10-Q2026-09-03
• 8-K8-K2026-09-03
• 8-K8-K2026-06-11
• 8-K8-K2026-06-08
• 10-Q10-Q2026-06-04
• 8-K8-K2026-06-04
• 8-K8-K2026-03-31
• 10-Q10-Q2026-03-05
• 8-K8-K2026-03-05
• DEF 14ADEF 14A2026-02-12
• 10-K10-K2025-12-12
• 8-K8-K2025-12-11

About Ciena Corp

Ticker

CIEN (NYSE)

Industry

Telephone & Telegraph Apparatus

Headquarters

Hanover, MD

Incorporated in

MD

Fiscal year end

October 31

SEC CIK

936395

Frequently asked questions