Top 5 public CPO companies poised for strong growth from the AI networking shift:
1. **Broadcom (AVGO)**: Leading CPO Ethernet switches (Tomahawk 6) already shipping.
2. **NVIDIA (NVDA)**: Quantum/Spectrum CPO platforms for InfiniBand/Ethernet AI clusters.
3. **Marvell (MRVL)**: Optical DSPs + Celestial AI acquisition for scale-up.
4. **Coherent (COHR)**: Silicon photonics CPO modules and lasers.
5. **Lumentum (LITE)**: Key optical engines/components for hyperscalers. Early adoption phase favors these ecosystem leaders.
