Ciena Revenue Jumps 37% as Company Raises Full-Year Outlook

Ciena reported a sharp acceleration in fiscal third-quarter growth on Thursday, with revenue rising 37% from a year earlier to a record $1.671 billion as AI-related network spending continued to lift demand for the company’s optical and interconnect products. The networking equipment maker also raised its full-year 2026 revenue outlook, extending a run of guidance upgrades that has tracked stronger customer investment from large cloud operators.

Adjusted diluted earnings per share climbed to $2.11 from $0.67 a year earlier, while adjusted operating margin widened to 22.5% from 10.7%. On a GAAP basis, diluted earnings per share rose to $1.83 from $0.35. Gross margin also improved materially, reflecting a richer product mix and higher scale as revenue growth outpaced the increase in operating expense.

In its fiscal third-quarter results release, Ciena said it now expects fiscal 2026 revenue of $6.42 billion plus or minus $50 million. That compares with the $6.3 billion plus or minus $100 million full-year outlook it gave in June. The new range implies about 35% year-over-year growth at the midpoint and points to another strong finish after a quarter that already set a company record for sales.

Management also projected fiscal fourth-quarter revenue of $1.75 billion plus or minus $50 million, with adjusted gross margin of about 45% and adjusted operating margin of about 20%. Those targets suggest that demand has remained solid heading into the final quarter even after the large jump already recorded in the third.

AI and cloud demand remain the main growth engine

The strongest message from the quarter was where the growth is coming from. Ciena’s earnings presentation shows cloud-provider revenue accounted for 53% of total third-quarter sales and increased 82% from a year earlier. That is a meaningful step up from the second quarter, when cloud providers represented 46% of revenue and grew 70% year over year.

The same SEC-filed earnings presentation said RLS and Waveserver revenue each grew more than 55% from a year earlier, while pluggables revenue more than doubled as WaveLogic 6 Nano ramped more meaningfully. Ciena also said it recorded shipments at record levels for WL5e, WL6e and WL6n, and that 800ZR pluggables shipments more than doubled from the prior quarter.

Those details help explain why the headline numbers moved so quickly. Hyperscale and AI infrastructure spending is not just increasing traffic through existing networks. It is also driving new purchases of high-capacity optical systems, coherent pluggables and line-system hardware that connect data centers and move very large volumes of data across longer distances. Ciena has been positioning itself as a specialist supplier to that buildout, and the latest results indicate that effort is translating into faster revenue growth.

Regional performance also showed broad support. The presentation said Asia-Pacific revenue increased 58% from a year earlier, while management highlighted a significant direct performance optics module order and a second multi-rail win. Those wins matter because they suggest Ciena is broadening its role in hyperscaler architectures rather than selling only into one narrow part of the network stack.

Optical networking drove most of the quarter’s gain

The company’s revenue mix shows how central optical hardware remains to the story. Optical Networking generated $1.191 billion in the quarter, equal to 71.3% of total revenue, up from $815.5 million and 66.9% a year earlier. Routing and Switching added $164.4 million, while Platform Software and Services contributed $98.6 million.

Global Services also improved, with maintenance, support and learning revenue rising to $89.8 million from $80.7 million, implementation revenue increasing to $87.9 million from $65.9 million, and advisory and enablement revenue reaching $15.9 million from $13.6 million. That is useful context because it shows the quarter was not built entirely on one isolated product spike. Most of the major revenue lines moved higher, though the fastest growth was still concentrated in optical systems tied most directly to AI network expansion.

Profitability improved along with the sales mix. GAAP operating margin reached 18.0%, compared with 6.1% a year earlier, while adjusted operating expense rose just 5.2% despite the 37% revenue jump. That operating leverage is one reason adjusted EPS advanced more quickly than revenue. Adjusted EBITDA increased to $411.1 million from $158.0 million.

Ciena also ended the quarter with $2.8 billion in cash and investments, up 100% from a year earlier, and repurchased about 0.4 million shares for $171.7 million during the period. The presentation noted that the company completed a $2.9 billion convertible debt offering with a 0.0% coupon, a move management said reduced overall interest expense and increased financial flexibility. Free cash flow, by contrast, fell to $116 million from $135 million, so the quarter was not stronger across every operating metric.

The higher forecast raises the bar for the final quarter

Ciena’s new full-year outlook reflects more than a one-quarter beat. By lifting its fiscal 2026 revenue target to $6.42 billion plus or minus $50 million from the earlier $6.3 billion plus or minus $100 million, management is effectively saying the stronger demand picture remains intact through year-end. The narrower range also implies more confidence in near-term execution.

The outlook still depends on several assumptions. Ciena said cloud providers are expected to continue AI infrastructure buildouts in line with their recent public spending commitments, that optical component and substrate supply remains broadly stable, and that there will be no material change to current U.S. and international tariff and trade policy affecting either the company or its customers. Those are not trivial caveats in a hardware business where supply conditions and customer spending patterns can shift quickly.

Even so, the quarter’s mix suggests the company is benefiting from a structural spending theme rather than a short-lived inventory catch-up. Optical networking was the dominant source of revenue, cloud-provider demand kept accelerating, and products tied closely to data-center interconnect and scale-across AI traffic showed some of the fastest growth rates in the portfolio. That combination gives more weight to the guidance increase than a simple headline beat would on its own.

Ciena also offered an early look at fiscal 2027, saying it sees revenue growth of at least 30%, adjusted gross margin of 45% to 46%, and adjusted operating margin of 25% to 27%. That guidance is still preliminary, but it indicates management expects the current demand cycle to carry beyond the final quarter of fiscal 2026. The immediate next milestone is Ciena’s fourth-quarter performance, which will determine whether the company reaches the higher full-year target it set on September 3.