IonQ vs. D-Wave Quantum: Which Quantum Computing Stock Is a Better Buy in 2026?

IonQ and D-Wave Quantum are competing quantum computing companies with different technological approaches. IonQ uses trapped-ion technology and generated $130M in FY2025 revenue with 201.9% YoY growth, while D-Wave specializes in quantum annealing with $24.6M revenue and 178.5% growth. Both are unprofitable with significant operating losses, but IonQ is recommended as the better buy due to stronger revenue growth, the SkyWater Technology acquisition providing end-to-end chip capabilities, and a more comprehensive quantum solution portfolio.