EUV: Corgi Lithography & Semiconductor Photonics ETF

Launched in early May 2026, EUV targets one of AI’s next bottlenecks: moving data with light.

Covers the full photonics chain: EUV lithography, advanced packaging, optical fiber, lasers, transceivers, metrology, testing, substrates, and optical networking.

Clusters need faster, cooler, lower-power ways to move massive data across chips, racks, data centers, and networks.

That is where silicon photonics becomes interesting.

$TSM — TSMC | 9.62%

Core foundry anchor for advanced silicon photonics. HPC is 61% of revenue, while 7nm and below are 74% of wafer revenue, tying TSMC directly to AI compute and packaging scale.

$ASML — ASML | 7.98%

The lithography gatekeeper. EUV tools enable smaller, denser chip structures, making ASML a critical layer behind advanced photonic circuits, AI silicon, and next-gen manufacturing ramps.

$GLW — Corning | 5.24%

Optical infrastructure pick. Corning supplies specialty glass and fiber used in data center networks, where AI clusters are pushing bandwidth demand beyond legacy copper-heavy designs.

$LRCX — Lam Research | 4.95%

Lam brings etch and deposition tools needed for precise waveguides, stacked structures, and advanced chip layers. Its Aether dry resist work targets lower EUV dose in patterning.

$AMAT — Applied Materials | 4.75%

Applied Materials sits in the materials engineering layer of photonics and advanced packaging. Panel-level packaging expansion adds another angle to AI interconnect scaling.

$LITE — Lumentum | 4.32%

Lumentum is a direct optical component play. It makes lasers and transceivers used in high-speed cloud networks, where hyperscalers need more bandwidth per watt.

$CIEN — Ciena | 4.26%

Ciena connects AI infrastructure through optical routing and networking systems. Its role is less about chips and more about moving data across large-scale compute clusters.

$KLAC — KLA | 4.08%

KLA protects yield. As optical parts move closer to logic dies, inspection and metrology become non-negotiable for advanced packaging and photonic chip production.

$COHR — Coherent | 4.08%

Coherent supplies engineered materials, lasers, and optical transceivers. Its photonics exposure sits right inside the bandwidth problem facing hyperscale AI infrastructure.

$MTSI — MACOM | 3.31%

MACOM builds analog and photonic semiconductor components used in optical modules. Drivers and TIAs help convert electrical signals into light across fiber networks.

$FN — Fabrinet | 2.68%

Fabrinet is the manufacturing layer for optical hardware. It supports 800G, 1.6T, and silicon photonics systems, giving the ETF contract manufacturing exposure.

$NVMI — Nova | 2.40%

Nova brings optical metrology to advanced semiconductor production. Spectral interferometry and Raman tools help fabs measure complex layers in photonics and packaging.

$MRVL — Marvell | 2.36%

Marvell supplies networking silicon and custom ASICs for AI clusters. Its 1.6T silicon photonics light engine targets rack-scale networks with lower power and latency.

$AAOI — Applied Optoelectronics | 2.34%

AAOI focuses on lasers and transceivers for hyperscale data centers. Its narrow-linewidth pump laser targets silicon photonics and co-packaged optics applications.

$AXTI — AXT | 2.32%

AXT makes compound semiconductor substrates like InP and GaAs. Those materials are essential for photonic lasers, optical devices, and high-speed data center components.

$CRDO — Credo | 2.26%

Credo brings SerDes, optical DSPs, and high-speed connectivity into the mix. Its DustPhotonics deal adds silicon photonics IP directly to the AI networking stack.

$ENTG — Entegris | 2.20%

Entegris is the purity layer. Ultra-clean filtration and materials handling help prevent microscopic defects during advanced wet etch and photonic wafer processing.

$VIAV — Viavi | 2.14%

Viavi supplies optical test and measurement systems. Its tools validate silicon photonics lines, optical loss, and high-volume 1.6T Ethernet network deployments.

$ONTO — Onto Innovation | 1.99%

Onto provides wafer inspection and optical metrology for advanced substrates and packaging. Its Semilab integration adds more materials characterization depth.

$NOVT — Novanta | 1.90%

Novanta adds precision photonics exposure through lasers, beam steering, and optical components. Its Laser Quantum acquisition strengthens specialty laser capabilities.

$LASR — nLIGHT | 1.64%

nLIGHT makes semiconductor and fiber lasers for microfabrication, aerospace, defense, and industrial use. It gives $EUV a smaller but direct laser manufacturing angle.

The ETF is new, and early asset gathering appears measured compared with other semiconductor-themed launches.