Viavi Solutions (VIAV) crushed Q1 2026 expectations, driven by booming data center and aerospace & defense demand, with the strategic Spirent acquisition set to accelerate its high-margin growth trajectory and reshape its revenue mix.
Viavi Solutions Inc. (NASDAQ:VIAV) has delivered a stellar performance in its fiscal first quarter of 2026, surpassing revenue, operating margin, and EPS guidance. The results, reported on October 29, 2025, signal a strong continuation of the company’s strategic pivot towards high-growth segments like the data center ecosystem and aerospace and defense. This positive momentum is further amplified by the recently completed acquisition of Spirent’s high-speed Ethernet business lines, which is already contributing to the company’s financial outlook.
Q1 2026 Performance Highlights
Viavi Solutions demonstrated significant financial strength, with key metrics exceeding expectations as detailed in its earnings call transcript available via The Motley Fool:
- Total Revenue: $299.1 million, a 25.6% increase year-over-year (YoY) and 3% sequentially, beating the high end of guidance.
- Operating Margin: 15.7%, up 570 basis points (bps) YoY and 130 bps sequentially, also above guidance.
- EPS: $0.15, an increase of $0.09 YoY and $0.02 sequentially, surpassing the upper end of guidance.
- NSE Segment Revenue: (Network Enablement and Service Enablement) reached $216 million, marking a robust 35.5% YoY growth, driven by data center ecosystem demand and the acquisition of Inertia Labs.
- NSE Operating Margin: Improved significantly to 7.5%, up from negative 4.6% in the prior year, highlighting strong fall-through.
- OSP Segment Revenue: (Optical Security and Performance Products) was $83.1 million, up 5.5% YoY, though gross and operating margins saw declines due to an unfavorable product mix and higher manufacturing costs.
- Cash Position: Total cash and short-term investments stood at $549.1 million, up from $429 million in 2025. Cash flow from operations more than doubled to $31 million YoY.
A Strategic Pivot: Data Centers Take Center Stage
CEO Oleg Khaykin highlighted the ongoing shift in Viavi’s revenue mix, noting that the data center ecosystem is rapidly approaching, and likely to surpass, traditional service provider revenue by the end of the fiscal year. This transformation is pivotal for Viavi, as the data center market offers faster technology cycles (every two to three years compared to six to eight years in telecom) and higher margins due to the constant demand for leading-edge solutions.
The company’s products are deeply integrated across the entire data center value chain, serving processor companies, physical layer communication firms, system companies, and hyperscalers with extensive internal R&D. This broad engagement, coupled with the rapid evolution of network speeds (400 gig, 800 gig, 1.6 terabit) and chip-to-chip interconnects (PCIe 6.0, 7.0), creates a “force multiplier” for growth, as Khaykin described.
The Spirent Acquisition: A High-Margin Catalyst
A key driver of Viavi’s strengthened position is the successful acquisition of Spirent’s high-speed Ethernet network security and channel emulation business lines from Keysight, which closed in mid-October. This acquisition is expected to add approximately $200 million to Viavi’s annual revenue run rate, exceeding initial estimates. Management confirmed that the Spirent business brings with it a higher gross and operating margin profile than the average NSE segment, making it immediately accretive to overall profitability.
The integration of Spirent’s capabilities, particularly its AI HSE (AI workload testing) products, significantly enhances Viavi’s offerings in the data center ecosystem, allowing it to address layers two through seven of the network stack, in addition to its traditional strength in layers zero and one. This strategic move solidifies Viavi and Keysight as the two major players in this intense, high-R&D market segment.
Aerospace & Defense: A Steadily Growing Pillar
Viavi’s aerospace and defense business also continued its strong growth trajectory in Q1 2026, driven by high demand for its positioning, navigation, and timing (PNT) products. These solutions, ranging from inertial measurement units to full-blown inertial navigation systems with sensor fusion, are crucial for autonomous vehicles across various domains (ground, sea, undersea) as well as mining, agricultural, and surveillance drones. This segment utilizes a common platform, offering diversified growth opportunities.
Wireless and Service Providers: The Lingering Challenge and Future Upside
While the data center and aerospace & defense segments are booming, the wireless business remains a weak point due to continued soft demand from major wireless carriers. However, CEO Khaykin noted a gradual recovery in fiber, spurred by the emergence of specialist fiber interconnect companies improving networks between data centers. He also pointed to recent bullish announcements from traditional Tier 1 service providers like AT&T and Verizon regarding future spending, suggesting potential for a broader recovery.
The company anticipates that the wireless segment, currently the “last cylinder in the engine to turn on,” could become a significant incremental catalyst in the next calendar year, especially with investments like NVIDIA’s in Nokia for AI RAN accelerating 5G advancements. This potential turnaround would provide a substantial boost to Viavi’s bottom line.
Financial Maneuvers to Fuel Growth
To facilitate its growth strategy, Viavi successfully refinanced its $50 million convertible notes and closed a $600 million Term Loan B to fund the Spirent acquisition and for general corporate purposes. These financial actions underscore the company’s commitment to strategic investments while maintaining a healthy balance sheet, as reported by PR Newswire.
Looking Ahead: Q2 Guidance and Long-Term Outlook
For fiscal Q2 2026, Viavi projects total revenue between $360 million and $370 million, including an estimated $45 million to $55 million from Spirent’s contribution to NSE. Total operating margin is expected at 17.9% plus or minus 60 basis points, with EPS guidance ranging from $0.18 to $0.20. Management anticipates Spirent to contribute $0.00 to $0.02 to EPS for the quarter, despite seasonal softness in Spirent’s business in the first half of the calendar year.
CFO Ilan Daskal projects the Spirent business, post-integration, could reach around $165 million per quarter. The shift towards the data center ecosystem, combined with potential recovery in traditional telecom, positions Viavi for continued operating leverage and strong EPS growth.
Investor Sentiment: De-risking and EPS Potential
The significant operating leverage observed as the business rebounds has fueled optimism among investors. With continued strong performance from data center and aerospace & defense, and a potential recovery in wireless, some analysts are projecting Viavi could be “running around close to a dollar a share next year.” This outlook, combined with the strategic revenue mix shift, suggests Viavi is effectively de-risking its portfolio and establishing a more resilient, higher-growth profile for the long term.
