Xanadu Quantum vs. IonQ: The Better Quantum Computing Stock Buy for 2026

The article compares two quantum computing companies: Xanadu Quantum Technologies, a newly public photonic quantum computing company, and IonQ, which uses ion-based technology. While both show strong revenue growth, IonQ is recommended as the better investment due to significantly higher sales ($64.7M vs $2.8M in Q1), larger cash reserves ($3.1B vs $272.5M), and a more attractive valuation (P/S ratio of 98 vs 700). IonQ's technology has gained more market traction and it has assembled a comprehensive technology stack positioning it for sustained growth.