On September 21, Lumentum rose 3.02% in pre-market trading, trading at $960.00/share, with turnover of approximately $62.63 million.

On the news front, Lumentum announced it will jointly demonstrate a high-density optical die-to-die interconnect solution for AI scale-up systems with Qualcomm Technologies and Corning at ECOC 2026 in Malaga, Spain. The proof-of-concept integrates Qualcomm's D2D interface, Lumentum's 1060 nm VCSEL optical platform, and Corning's multimode fiber connectivity, enabling high-bandwidth, low-power, and low-latency links over tens of meters. The demonstration features 32 Gb/s NRZ optical channels supporting approximately 1 Tb/s/mm of shoreline bandwidth density, with a roadmap to 4 Tb/s/mm. Lumentum's optical engine delivers roughly 10 Tb/s of aggregate transmit and receive capacity.

The announcement reinforces Lumentum's positioning in AI infrastructure buildout. Analyst sentiment remains broadly positive, with Rothschild & Co Redburn recently raising its price target to $1,294.85 while maintaining a Buy rating, and Deutsche Bank initiating coverage at Buy with a $1,200 target.

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