Viavi Solutions is emerging as a deleveraged AI-and-network testing compounder, but execution on Spirent integration and dilution absorption will determine whether VIAV can justify its premium valuation.
Overview
Viavi Solutions Inc. is a specialized test, monitoring, and optical technology provider serving telecom networks, hyperscale data centers, enterprise infrastructure, aerospace and defense, and security applications. Its two operating segments are Network and Service Enablement, which sells hardware instruments, assurance software, and services, and Optical Security and Performance, which provides thin-film coatings, security pigments, and 3D sensing filters. **The core investment case is that Viavi has shifted from a carrier-exposed test vendor into a broader infrastructure validation platform with growing leverage to AI-driven data center upgrades.** The October 2025 Spirent HSE carve-out materially strengthens its position in high-speed Ethernet testing, while OSP provides differentiated niche exposure to currency security and consumer optical components. **Financial momentum improved sharply in Q3 fiscal 2026, with revenue up 42.8% year over year to $406.8 million and non-GAAP operating margin expanding to 21.0%.** The May 2026 equity offering and full repayment of the remaining $450.0 million Term Loan B materially improved the balance sheet, driving an S&P upgrade to BB and lowering projected adjusted debt-to-EBITDA to 2.8x by fiscal 2026 year-end. Near-term catalysts include Spirent synergy realization, 800G/1.6T data center demand, and a potential recovery in carrier capex.