[Optical Communication Leader Lumentum FY2026 Q4 Earnings: Revenue of $1.01 Billion, Up 109.3% YoY] BlockBeats News, August 12 – U.S. stock market optical communication leader Lumentum announced its FY2026 Q4 earnings, reporting revenue of $1.01 billion, a year-over-year increase of 109.3%. Adjusted earnings per share were $3.23, compared to an estimate of $2.97. Adjusted gross margin was 50.4%, exceeding the expected 48.8%. Full-year FY2026 performance: Net revenue was $3.01 billion, with a GAAP net loss of $6.9 billion, equivalent to a diluted loss per share of $92.96. The GAAP net loss was primarily due to the equity conversion of certain convertible bonds in Q4 FY2026, resulting in a one-time, non-cash debt settlement loss of $7.8 billion. Non-GAAP net income for FY2026 was $782.3 million, equivalent to a diluted earnings per share of $8.67. As of the end of Q4 FY2026, the company held total cash, cash equivalents, and short-term investments of $2.7 billion, an increase of $1.9 billion compared to the end of FY2025. According to BIT (bit.com) market data, Lumentum closed up 0.87% and rose an additional 2.2% in after-hours trading.