Ciena
Ciena Corporation (NYSE: CIEN) is a network technology company providing hardware, software, and services to network operators globally. The company's website is www.ciena.com. From the company’s description.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Ciena does
In the company’s own words
Ciena Corporation (NYSE: CIEN) is a network technology company providing hardware, software, and services to network operators globally. The company's website is www.ciena.com.
Ciena enables enhanced network capacity, service delivery, and automation across cloud providers, service providers, and other network operators. The company operates through four primary segments: Networking Platforms, Platform Software and Services, Blue Planet Automation Software and Services, and Global Services.
The Networking Platforms segment encompasses the Optical Networking and Routing and Switching portfolios. Optical Networking products include the 6500 Packet-Optical Platform, Waveserver systems, the 6500 Reconfigurable Line System, and coherent pluggable transceivers, all leveraging Ciena's proprietary WaveLogic coherent modem technology. Routing and Switching products include the 3000 and 5000 family platforms, 8100 Coherent Routing platforms, and virtualization software for edge and metro networks. Platform Software offerings include Navigator NCS, which provides multi-layer network control and automation. Blue Planet Automation Software enables service providers to accelerate digital transformation through inventory management, multi-domain service orchestration, and unified assurance capabilities. Global Services encompass advisory, implementation, and maintenance support for network infrastructure.
Ciena's strategy focuses on expanding optical networking leadership, scaling market presence with interconnect modules for data center applications, growing addressable market in metro and edge networking, driving software-led transformation, and delivering innovative global services. The company emphasizes coherent optical technology advancement, photonic line systems optimization, and AI-powered network management applications.
As of November 1, 2025, Ciena employed 9,080 full-time employees across 39 countries, with approximately 56 percent in the Americas, 36 percent in Asia Pacific, Japan and India, and 8 percent in Europe, Middle East and Africa. The company maintains approximately 2,400 issued patents and 800 pending patent applications worldwide. Ciena manufactures products through third-party contract manufacturers located in Canada, Mexico, Thailand, Vietnam, and the United States, while maintaining direct relationships with key suppliers to ensure supply chain resilience and transparency.
Company details
- Sector
- Information Technology
- Industry (SIC)
- Electronic Equipment
- Headquarters
- HANOVER, MD
- Fiscal year end
- October
- CIK
- 936395
- SIC
- 3661
Financial performance, year by year
Fiscal 2013–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Ciena — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · Ciena’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Ciena’s bonds, as funds hold them
Funds report holding 2 issues of Ciena’s debt, $171.47M at market value — what funds hold, not the company’s total debt. Weighted-average coupon 1.49%, maturing 2030 to 2031.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
Compare this company with peers, find it in your funds and follow its financial history with your connected AI:
- “How do Ciena and its peers compare on margins and cash generation over ten years?”
- “Where did five years of Ciena's earnings go — cash, debt, buybacks, reinvestment?”
- “What changed in Ciena's last four quarterly filings that the numbers alone won't show?”