Lumentum Holdings (LITE)

Lumentum Holdings data center thesis

Lumentum makes the EML lasers and 800G/1.6T transceivers that go into hyperscale AI back-end fabrics, plus the optical circuit switching (OCS) that Google pioneered for training clusters. The March 2026 $2B NVIDIA strategic investment funds capacity expansion against a $400M+ OCS backlog through 2028. Revenue dropped from $1.77B (FY23) to $1.36B (FY24) on telco air-pockets and is rebuilding to $1.65B (FY25); operating income still negative at -$180M as the AI ramp catches the fixed-cost base.

Bull case

• $2B NVIDIA strategic investment plus a disclosed $400M+ OCS backlog through 2028 anchors the revenue ramp with named customer commitments, a hard floor under the AI mix that didn't exist twelve months ago.
• Optical circuit switching is the differentiated piece: passive, lossless cross-connects inside training clusters that Google validated in production. As Meta and others adopt OCS for next-gen GPU pods, Lumentum is one of two credible vendors.
• Each Blackwell and Rubin GPU generation roughly doubles transceiver count per server and forces a 400G -> 800G -> 1.6T port refresh; Lumentum's EML lasers are inside the spec at hyperscaler customers across the next two refresh cycles.

Bear case

• Operating income is still -$180M on $1.65B of revenue (-11% op margin); the AI ramp hasn't yet fixed the model and the gross margin (28%) is well below where the bull case requires it (mid-40s). Execution risk on the next four prints is real.
• LPO and CPO transitions threaten the standalone DSP-pluggable transceiver volume that drives the model today; if NVIDIA's roadmap accelerates CPO into Rubin Ultra, the content-per-port economics inside Lumentum's mix degrade.
• Stock at 51% of 52-week high and only +1% YoY despite the NVIDIA investment; the market is skeptical that the strategic capital translates into operating leverage on Lumentum's specific platform versus simply funding industry capacity.

Thesis last reviewed 2026-05-09.

Lumentum Holdings revenue and capex

In fiscal 2026, Lumentum Holdings reported revenue of $3.0B, capital spending of $451.3M and operating income of $524.8M.

From annual reports filed with the SEC; the most recent was filed 2026-08-17.

Tracked Lumentum Holdings data center projects

• Meta Hyperion, 5 GW, Holly Ridge, LA · under construction
• Google New Albany, 250 MW, New Albany, OH · operational
• Google Council Bluffs (East), 237 MW est., Council Bluffs, IA · operational
• Google Omaha, Omaha, NE · operational
• Microsoft Fairwater Wisconsin, Mount Pleasant, WI · operational

Other networking names tracked

• Applied Optoelectronics (AAOI)
• Arista Networks (ANET)
• Ciena Corp (CIEN)
• Coherent Corp (COHR)
• Credo Technology (CRDO)
• Fabrinet (FN)