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Compare · CIEN vs SKM

CIEN vs SKM

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

Summary

  • CIEN operates in Utilities, while SKM operates in Telecommunications - the two are in different parts of the market.
  • CIEN is the larger of the two at $66.06B, about 4.3x SKM ($15.21B).
  • Over the past year, CIEN is up 544.4% and SKM is up 83.3% - CIEN leads by 461.1 points.
  • CIEN has been more active in the news (15 items in the past 4 weeks vs 3 for SKM).
  • CIEN has more recent analyst coverage (25 ratings vs 9 for SKM).
PerformanceCIEN+544.43%SKM+83.31%
2025-06-09+0.00%2026-06-08
MetricCIENSKM
Company
Ciena Corporation
SK Telecom Co. Ltd.
Price
$466.57-4.43%
$39.64+5.99%
Market cap
$66.06B
$15.21B
1M return
-13.31%
+9.23%
1Y return
+544.43%
+83.31%
Industry
Telecommunications Equipment
Telecommunications Equipment
Exchange
NYSE
NYSE
IPO
1997
News (4w)
15
3
Recent ratings
25
9
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.

SKM

SK Telecom Co. Ltd.

SK Telecom Co., Ltd. provides wireless telecommunication services in South Korea and internationally. The Cellular Services segment offers wireless voice and data transmission, cellular global roaming, interconnection, Internet of Things, and platform services, as well as sells smartphones, basic phones, tablets and other Internet access devices, and wearable devices. The Fixed-Line Telecommunication Services segment provides local, domestic and international long distance, and voice over Internet protocol services; broadband Internet access; Internet protocol TV and mobile over-the-top; and leased line solutions, Internet data center, and network solution services. The Commerce Services segment operates 11st, an online open marketplace; and T-commerce network that offer assortment of goods and services through pre-recorded television programming. The Other Businesses segment provides marketing platform services, such as Syrup Wallet, a mobile wallet service; OK Cashbag, a loyalty points program; and One Store, a mobile application marketplace. The Security Services segment offers physical security services, which includes centralized monitoring system; information security solutions, such as information security consulting, managed security, and cyber threat intelligence solutions; and operates parking management and security solutions business. In addition, it offers call center management, base station maintenance, information gathering and consulting, system software development and supply, quantum information and communications, data base and internet website, and digital contents sourcing services; manufactures and sells e-book; sells and trades in anti-theft and surveillance devices; and operates information and communications facilities. As of December 31, 2020, the company had 3.8 million fixed-line telephone and 31.4 million wireless subscribers. The company was incorporated in 1984 and is headquartered in Seoul, South Korea.