Lumentum is trading 12.06% lower at $541.00 amid broad selling in semiconductor and AI-infrastructure shares, with reports citing concerns tighter AI and data-center regulation could slow construction.
- Weakness followed Qualcomm’s disappointing handset-chip outlook.
- Lumentum had already reported strong quarterly growth and guidance, which do not clearly explain the decline. Its all-stock Marvell deal’s implied value has weakened as Marvell shares fell, but coverage does not establish that as the direct cause.