Company overview
Ciena Corporation, a network technology company, provides hardware, software, and services for various network operators in the Americas, Europe, the Middle East, Africa, the Asia Pacific, Japan, and India. It operates through Networking Platforms, Platform Software and Services, Blue Planet Automation Software and Services, and Global Services segments. The Networking Platforms segment consists optical networking, routing, and switching products and services. This segment products include the 6500 Packet-Optical Platform, Waveserver modular interconnect system, the 6500 Reconfigurable Line System, and coherent pluggable transceivers; and the 3000 family of service delivery platforms and the 5000 family of service aggregation, as well as the 8100 Coherent Routing platforms and virtualization software. The Platform Software and Services segment offers navigator network control suite; and software subscription services, consulting, network migration and integration, installation and upgrade support services, and technical support solutions. The Blue Planet Automation Software and Services segment inventory management, orchestration, route optimization and analysis, and unified assurance and analytics software; and sells subscription, installation, support, consulting, and design services related to the Blue Planet automation platform. The Global Services segment provides services for advisory and enablement, implementation, and maintenance, support, and learning activities. Ciena Corporation was incorporated in 1992 and is headquartered in Hanover, Maryland.
Daily valuation snapshot
These values come from the daily market snapshot dated 2026-10-08. TTM means trailing twelve months. Use the market date when comparing CIEN with another company.
| Daily close (USD) | $425.93 |
| Market capitalization (USD) | $60,400,505,053.25 |
| Price / earnings (TTM) | 92.3 |
| Price / book | 19.76 |
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Company size
Ciena Corporation's recorded market capitalization is $60,400,505,053.25. It measures the market value of the company's equity, rather than its revenue or cash balance.
Price relative to earnings
CIEN's recorded P/E is 92.3: about $92.3 of share price for each $1 of trailing annual earnings per share. Compare that multiple with earnings growth and companies in the same business.
Price relative to book equity
CIEN's recorded price-to-book ratio is 19.76. That compares its market equity value with recorded book equity. Examine its business and balance sheet to understand why those values differ.
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