Ciena company information

시에나NYSE:CIEN · New York Stock Exchange · IT Hardware · sector #6
$446.45+0.63%
2026-10-07 close

Ciena's company information is shown as of 2026-10-07. It is a security listed on New York Stock Exchange, ticker CIEN. There are 14 published related companies.

About this company

Ciena last closed at $446.45 (+0.63%) on 2026-10-07. Signals today: Bollinger breakout. Listed on New York Stock Exchange.

1 guru reporting 13F holdings — Bridgewater (founded by Ray Dalio)

Who held it · filings

Filed record

A historical record from curated-guru 13F filings and DART 5%+ major-holding disclosures.

US 13F is quarterly and may be filed up to 45 days later.

Curated gurus reporting this holding

A curated subset of well-known investors — not the full institutional ownership.

Suppliers, competitors and related stocks

  • AT&TCustomer

    통신망 장비 주요 고객

  • VerizonCustomer

    북미 대형 통신사 고객

  • T-Mobile USCustomer

    무선/백홀 네트워크 장비 고객

  • 장거리·광전송 네트워크 고객

  • VodafoneCustomer

    글로벌 통신사 고객

  • Deutsche TelekomCustomer

    유럽 대형 통신사 고객

  • Cisco SystemsCompetitor

    통신·네트워크 장비 경쟁사

  • NokiaCompetitor

    광전송·통신장비 경쟁사

  • InfineraCompetitor

    광네트워크/전송 장비 경쟁사

  • HuaweiCompetitor

    글로벌 광통신 장비 경쟁사

  • BroadcomSupplier

    네트워크용 반도체·DSP 공급망 핵심

  • 광통신/데이터센터용 칩 공급사

  • MicrosoftCustomer

    클라우드·데이터센터 네트워크 수요처

  • AmazonCustomer

    AWS 데이터센터 네트워크 수요처

Major stocks in the same sector

2026-10-08 dataset

📦 ETFs holding this stock

by weight · top-10 constituents basis

Passive money holding this stock ≈ $169M(lower bound — top-10 basis, not a forecast)

Factual holdings info from daily disclosures — not a recommendation.

Look up another stock →

Ciena notifications

Quantus Signal · live data · not investment advice · Privacy Policy