Viavi Solutions Inc. (VIAV) Q4 2025 Earnings Call Transcript

Viavi Solutions (VIAV) reported strong fiscal Q4 2025 results, with revenue of $290.5 million and EPS of $0.13, both at the high end of guidance, contributing to a full-year revenue of $1.84 billion. The company's growth was primarily driven by robust demand from the data center ecosystem and aerospace and defense, which successfully offset persistent weakness in wireless infrastructure testing. This diversification strategy is mitigating traditional seasonality, leading to a better-than-expected Q1 2026 revenue guidance of $290-$298 million, as Viavi anticipates continued strength in these key segments and an acceleration in North American fiber CapEx.

Analysis

Viavi Solutions reported strong fiscal Q4 2025 results, with revenue of $290.5 million and non-GAAP EPS of $0.13, both at the high end of its guidance range. This performance reflects significant year-over-year growth of 15.3% in revenue and $0.05 in EPS, driven by the company's successful diversification strategy. The Network and Service Enablement (NSE) segment grew 14.8% YoY to $209.1 million, fueled by robust demand from the data center ecosystem for fiber lab and production test solutions (400G, 800G, and next-gen 1.6T) and growth in the aerospace and defense business, bolstered by the Inertial Labs acquisition. This strength effectively offset persistent weakness in wireless infrastructure and a delayed recovery in cable spending. The Optical Security and Performance (OSP) segment also delivered strong results, with revenue up 16.6% YoY to $81.4 million, driven by a recovery in anti-counterfeiting products. Management noted that the impact from tariffs has been successfully mitigated. The company's strategic shift has materially altered its revenue mix, with the data center ecosystem now representing 30% and aerospace and defense 20% of NSE revenue, reducing reliance on the traditional service provider segment to 50%. This diversification is dampening historical seasonality, leading to a confidently raised Q1 2026 revenue guidance of $290-$298 million, which is unseasonably strong. The outlook is supported by expectations of continued demand from data centers well into calendar 2026 and an anticipated acceleration in fiber deployment by North American service providers.

Key Decisions for Investors

• Investors should recognize that Viavi's strategic pivot towards the high-growth data center ecosystem and aerospace & defense markets is successfully de-risking the business from its historical dependence on volatile service provider spending, as evidenced by the counter-seasonal Q1 guidance.
• The primary growth catalyst to monitor is the data center ecosystem, particularly demand for 400G/800G/1.6T test solutions, which management expects to remain strong well into calendar 2026 and is on a trajectory to become a larger market than the traditional service provider business for the company.
• While new growth segments are performing well, a full re-rating may depend on the timing of a recovery in the traditional business; therefore, watch for an acceleration in North American fiber deployment and any improvement in the wireless infrastructure segment, which management acknowledges remains a laggard.
• Consider the balance sheet implications of the new $600 million term loan B used to fund the Spirent acquisition, noting management's target leverage ratios and the clear strategic shift in capital allocation from share repurchases toward M&A to accelerate growth.