Top 5 public CPO companies

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.