Lumentum Reports $402 Million Revenue, Lifting Optical Networking Valuations Ahead of Coherent Earnings

Lumentum's earnings showed datacom revenue reaching $245 million and gross margins expanding to 38 percent. These figures reflect sustained hyperscale purchases of 800G transceivers for AI clusters. Company filings confirm shipments exceeded internal targets, while traditional telecom segments remained flat. The result aligns with parallel strength reported by other optical suppliers in the same supply chain.

Sector gains occur against US export controls that restrict advanced component sales to China. Both Lumentum and Coherent have documented supply-chain diversification moves in their 10-K reports to mitigate these restrictions. The CHIPS Act simultaneously subsidizes domestic capacity, creating dual incentives for US firms to expand onshore production while limiting revenue from the largest potential market.

Investor attention now centers on Coherent's report. Primary earnings transcripts from peers indicate that any shortfall in datacom guidance would pressure multiples across the group. Sustained outperformance, by contrast, would reinforce capital expenditure momentum at major cloud providers through at least mid-2025.

The pattern shows optical component demand tracking AI infrastructure buildouts more closely than broader economic indicators. Next data points include Coherent's November release and subsequent order updates from transceiver manufacturers.