Viavi Solutions is trading €39.50, 7.05% up now after investors continued responding to strong fiscal fourth-quarter results.
- Revenue increased 52.5% year over year to $443.1 million, supported by AI data-center demand and the Spirent acquisition.
- GAAP operating margin reached 13.8%.
- The broader market was mixed on August 17, 2026, while the latest move extends gains following a 9.16% rise on August 12.