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Compare · CIEN vs KT

CIEN vs KT

Side-by-side comparison of Ciena Corporation (CIEN) and KT Corporation (KT): market cap, price performance, sector, and recent activity on the wire.

Summary

  • CIEN operates in Utilities, while KT operates in Telecommunications - the two are in different parts of the market.
  • CIEN is the larger of the two at $80.54B, about 9.2x KT ($8.79B).
  • Over the past year, CIEN is up 596.5% and KT is down 3.4% - CIEN leads by 600.0 points.
  • CIEN has been more active in the news (10 items in the past 4 weeks vs 6 for KT).
  • CIEN has more recent analyst coverage (25 ratings vs 8 for KT).
PerformanceCIEN+596.51%KT-3.45%
2025-06-02+0.00%2026-06-01
MetricCIENKT
Company
Ciena Corporation
KT Corporation
Price
$569.40-2.19%
$18.20+2.08%
Market cap
$80.54B
$8.79B
1M return
+7.77%
-14.99%
1Y return
+596.51%
-3.45%
Industry
Telecommunications Equipment
Telecommunications Equipment
Exchange
NYSE
NYSE
IPO
1997
News (4w)
10
6
Recent ratings
25
8
CIEN

Ciena Corporation

Ciena Corporation provides network hardware, software, and services that support the transport, routing, switching, aggregation, service delivery, and management of video, data, and voice traffic on communications networks worldwide. The company's Networking Platforms segment offers hardware networking products and solutions that optimized for the convergence of coherent optical transport, optical transport network switching, and packet switching. Its products include 6500 Packet-Optical Platform, 5430 Reconfigurable Switching System, Waveserver stackable interconnect system, and the 6500 Reconfigurable line system, and the 5400 family of Packet-Optical platforms, as well as Z-Series Packet-Optical Platform; 3000 family of service delivery switches and service aggregation switches, and the 5000 family of service aggregation switches, as well as 8700 Packetwave Platform and the Ethernet packet configuration for the 5410 Service Aggregation Switch; and 6500 Packet Transport System. This segment also sells operating system software and enhanced software features embedded in each of its products. The company's Blue Planet Automation Software and Services segment provides multi-domain service orchestration, inventory, route optimization and analysis, network function virtualization orchestration, analytics, and related services. Its Platform Software and Service segment offers OneControl unified management system and platform software services, as well as manage, control, and plan software. The company's Global Services segment provides consulting and network design, installation and deployment, maintenance support, and training services. The company sells its products through direct and indirect sales channels to network operators. Ciena Corporation was founded in 1992 and is headquartered in Hanover, Maryland.

KT

KT Corporation

KT Corporation provides integrated telecommunications and platform services in Korea and internationally. The company offers fixed-line telephone services, including local, domestic long-distance, international long-distance, and voice over Internet protocol telephone services, as well as interconnection services; broadband Internet access service and other Internet-related services; and data communication services, such as fixed-line and leased line services, as well as broadband Internet connection services. It also provides media and content services, including IPTV, satellite TV, digital music, e-commerce, online advertising consulting, and digital comics and novels services; and credit card processing and other financial services. In addition, the company offers information technology and network services, and satellite services; sells handsets and miscellaneous telecommunications equipment; develops and sells residential units and commercial real estate; and rents real estate properties. Further, it maintains public telephones; offers security, B2C and B2B, investment fund, software development and data processing, value added network, system integration and maintenance, mobile marketing, PCS distribution, satellite broadcasting, cloud system implementation, network installation and management, and data center development and related services. Additionally, the company is involved in the Internet banking ASP and security solutions, residential building development and supply, sports group management, technology business finance, software development and supply, submarine cable construction and maintenance, and trunk radio systems businesses. As of December 31, 2020, the company served approximately 22.3 million mobile subscribers and 8.8 million IPTV subscribers. The company was formerly known as Korea Telecom Corp. and changed its name to KT Corporation in March 2002. KT Corporation was founded in 1981 and is headquartered in Seongnam, South Korea.

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