Viavi Solutions Inc. reported its financial results for the fiscal first quarter ended September 27, 2025. Net revenue was $299.1 million, representing an increase of $60.9 million or 25.6% year-over-year. The company reported a GAAP operating margin of 2.5%, down 230 basis points from the prior year, and a non-GAAP operating margin of 15.7%, up 570 basis points year-over-year. The GAAP net loss was $21.4 million, up $19.6 million or 1,088.9% year-over-year, while non-GAAP net income was $33.1 million, up $20.7 million or 166.9% year-over-year. GAAP diluted earnings per share $(EPS)$ were $(0.10), down $0.09 or 900.0% year-over-year, and non-GAAP diluted EPS was $0.15, up $0.09 or 150.0% year-over-year. The company attributed its performance to strong demand from the data center ecosystem and aerospace and defense customers. Viavi also highlighted the acquisition of Spirent product lines from Keysight, which is expected to strengthen its position in the data center ecosystem and increase its presence in this market segment.