Welcome to our dedicated page for Ciena news (Ticker: CIEN), a resource for investors and traders seeking the latest updates and insights on Ciena stock.
Ciena Corporation (CIEN) operates at the center of global telecommunications infrastructure, manufacturing the optical networking equipment that carries internet traffic for major carriers and data centers worldwide. News about Ciena typically reflects broader trends in telecommunications spending, cloud computing expansion, and the ongoing buildout of high-capacity network infrastructure.
Ciena's quarterly financial reports provide visibility into telecommunications carrier capital expenditure patterns, as the company's revenue depends heavily on infrastructure investments by AT&T, Verizon, and international service providers. Earnings announcements often include commentary on customer deployment cycles and regional demand variations that affect the broader networking equipment sector.
Product announcements and technology milestones frequently highlight advances in optical transmission capacity. Ciena regularly participates in network trials with customers that demonstrate new speed and distance records for data transmission over fiber optic infrastructure. These technical achievements signal the company's R&D progress and future product capabilities.
Partnership and deployment news reveals which telecommunications providers and cloud companies are expanding their network infrastructure. Submarine cable projects, data center buildouts, and long-haul network upgrades often feature Ciena equipment, making company announcements a useful indicator of global connectivity infrastructure development.
Strategic developments including acquisitions and new market initiatives signal how Ciena is positioning for emerging opportunities in areas like data center interconnect and AI-related network demand. Follow CIEN news coverage to track developments affecting optical networking infrastructure and telecommunications equipment markets.
Ciena (NYSE: CIEN) will participate in a financial community event at the 28th Annual Needham Growth Conference on Tuesday, January 13, 2026 at 3:45 p.m. Eastern Time. David Rothenstein, Senior Vice President and Chief Strategy Officer, will speak. The presentation will be webcast live and recorded, with archived versions available approximately 24 hours after the live event on the Investors & Events & Presentations page.
Ciena (NYSE: CIEN) reported fiscal fourth quarter 2025 revenue of $1.35 billion (+20.3% year‑over‑year) and fiscal year 2025 revenue of $4.77 billion (+18.8% year‑over‑year). GAAP diluted EPS for Q4 was $0.13 and adjusted (non‑GAAP) diluted EPS was $0.91; full‑year GAAP EPS was $0.85 and adjusted EPS was $2.64. Non‑GAAP quarterly EBITDA was $205.5 million (+50.3% Y/Y) and full‑year non‑GAAP EBITDA was $636.7 million (+32.4% Y/Y).
Outlook: FY2026 revenue guidance of $5.7B–$6.1B; FY2026 adjusted gross margin ~43% ±1%; adjusted operating margin target of 17% ±1%; Q1 FY2026 revenue guide of $1.35B–$1.43B. Additional highlights include $329.7M of share repurchases in FY2025 and customer concentration with three customers representing 43.6% of Q4 revenue.
Constl and Ciena (NYSE:CIEN) announced a successful live trial using Ciena's WaveLogic 6 Extreme (WL6e) that achieved a 1 Tbps line rate on a single optical channel across the 1,450 km Mumbai–Chennai long‑haul route without regeneration on December 4, 2025.
The upgrade doubles wavelength capacity to 1.6 Tb/s versus the prior WaveLogic 5 Extreme, while reducing cost per bit, improving spectral efficiency and lowering power consumption. Constl — a Space World Group subsidiary — has deployed over 12,000 km of fibre and connected about 100 data centers across 13 cities since 2023.
Ciena (NYSE: CIEN) will announce its fiscal fourth quarter and year‑end 2025 results on Thursday, December 11, 2025, with the press release scheduled for distribution before the market opens.
The press release and supporting materials will be posted to Ciena’s Investor Relations website and the Quarterly Results page. Management will host a live audio web broadcast at 8:30 a.m. Eastern, accessible via www.ciena.com, and an archived rebroadcast will be available shortly after the live call in the Events & Presentations section.
Ciena (NYSE: CIEN) and Colt rolled out an upgraded transatlantic and terrestrial terabit network using Ciena WaveLogic 6 Extreme (WL6e) to support two global content providers on October 28, 2025.
The upgrade increases single-fibre capacity by 20%, raises per-wave transatlantic capacity from 450 Gbps to 1.2 Tbps (a 140% gain), boosts a Lisbon–Madrid terrestrial link from 600 Gbps to 1.5 Tbps, and achieves up to a 50% reduction in space, power consumption, and carbon emissions versus earlier transponders.
Trans Americas Fiber System and Ciena (NYSE: CIEN) announced that Ciena will light portions of the new TAM-1 subsea cable connecting Central America, the Caribbean, Mexico, Colombia and the U.S.
TAM-1 is a 7,200 km system with two diverse routes and a design capacity of more than 650 Tbps across 24 southbound and 12 northbound fiber pairs. Ciena technologies include GeoMesh Extreme with WaveLogic 6 Extreme and the 6500 Reconfigurable Line System to enable spectrum sharing, programmable automation, and fluid scalability for AI, cloud, 5G, edge and streaming demands.
Ciena (NYSE: CIEN) supplied optical networking solutions to enable EXA Infrastructure's new Ashburn, Virginia to Atlanta, Georgia route, offering up to 400 Gb/s connectivity for hyperscalers and enterprises. The deployment uses Ciena's 6500 Reconfigurable Line System, WaveLogic 5 Extreme coherent optics in the 6500 Packet-Optical Platform, and Navigator Network Control Suite for end-to-end visibility.
Key infrastructure facts: EXA owns 155,000 kilometers of fiber across 37 countries with six transatlantic cables. The Ashburn-Atlanta path adds a resilient, diverse corridor aligned with EXA's multi-corridor transatlantic digital bridge and is designed to evolve to future photonic upgrades such as WaveLogic 6.
FLAG is upgrading two India Connectivity Mesh segments (Chennai–Singapore and Mumbai–Singapore) using Ciena (NYSE: CIEN) WaveLogic 6 Extreme (WL6e) and GeoMesh Extreme to boost subsea capacity.
The upgrade supports 400GbE client services now and will enable 800GbE client services in the near future, improves spectral efficiency, and delivers a 50% reduction in space and power per bit versus the prior generation.
The move targets higher-capacity AI and cloud traffic, aims to lower operational costs, and extends usable life of existing submarine cables across India-to-Asia and India-to-Europe corridors.
Ciena (NYSE:CIEN) announced that Comcast is deploying its 5131 Coherent Access Platform (CAP) to enhance fiber connectivity deployment efficiency. The technology enables Comcast to extend fiber reach by more than 100 km while delivering 100 Gb/s capacity to residential, business, and community institutions.
The platform will support Comcast's Rural Broadband and BEAD initiatives, featuring a standardized, line-powered, weatherproof enclosure that simplifies installation. The solution eliminates the need for expensive hub sites and power-hungry equipment, reducing complexity and accelerating broadband deployment to underserved communities.
Ciena (NYSE:CIEN) has announced a definitive agreement to acquire Nubis Communications for $270 million in an all-cash transaction. The acquisition targets expanding Ciena's data center capabilities, particularly focusing on AI workload support.
Nubis brings two key technologies: Co-Packaged Optics (CPO)/Near Packaged Optics (NPO) supporting up to 6.4 Tb/s full-duplex bandwidth, and Electrical ACC enabling 200 Gb/s per lane data transmission. The deal also adds 50+ specialized engineers to Ciena's team.
The transaction is expected to close during Ciena's fiscal fourth quarter 2025, subject to customary closing conditions.
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