Ciena CorporationCIEN
NYSE•Technology•Communication Equipment
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.
as of May 2026
Are revenues and earnings expanding?
$5.57B in TTM revenue grew 30.6% YoY, reaching $1.57B last quarter. TTM EBITDA of $511.31M on operating income of $237.87M shows growth is flowing through. Net income of $438.30M TTM confirms the company is converting revenue into profit. Revenue is growing at a healthy pace — a signal to hold.
Is revenue turning into profit effectively?
Op. margin of 15.1% is up 12.2% YoY — cost efficiency is improving. Net margin at 13.9% and gross margin of 44.0%. ROE of 15.2% shows the company generates solid returns on shareholder equity.
Is the stock cheap or expensive?
At 138.7x P/E, the stock trades at a premium — the market expects above-average growth. P/S of 10.9x and P/B of 21.0x provide additional context. Assess whether the current multiple is justified by the company's growth and profitability trajectory.
Is the company financially stable?
With $6.04B in assets and $1.52B in long-term debt, the D/E of 0.5 shows a conservative capital structure — the company has a strong financial cushion to weather downturns.
Is the business self-funding?
FCF of $218.65M on $259.70M in operating cash flow. The FCF / Net Income ratio of 0.5x indicates partial cash conversion — earnings quality needs attention. Cash reserves of $1.05B provide financial flexibility. Share count is stable — no dilution or buyback activity.
Competitive analysis based on 61 quarters of fundamental data
Operating margins are positive at ~6.7% on average, but show some variability — pricing power may be sensitive to market conditions.
ROE is positive at ~5.9% on average, adequate but below the threshold typically associated with wide moats.
Free cash flow is consistently positive and growing — a hallmark of a capital-light business that can self-fund growth.
TTM revenue has grown consistently (6 of 7 quarters up), with ~38.5% growth over the period. Strong demand durability.
Data-driven red flags and warnings across 61 quarters
Margins are stable or improving at ~8.8% — no sign of cost or pricing stress.
FCF covers net income by 4.0x on average — earnings are well-supported by cash generation.
D/E ratio is 0.5 — conservative capital structure with low financial risk.
Revenue is stable or growing over recent quarters — demand appears durable.
Free cash flow is consistently positive — the business self-funds without external capital reliance.
Share count is stable — no significant dilution or buyback activity.