Rigetti vs. IonQ: Which Quantum Stock Wins After Quantinuum's IPO? - TradingView

Following a volatile start to 2026, quantum computing stocks have shown a strong recovery. Since April 1, IonQ shares surged 109.9%, while Rigetti Computing rose 58.4%, significantly outperforming the... Read original →

Quantinuum’s IPO has reset valuation benchmarks and intensified competition between quantum hardware paradigms. Rigetti’s chiplet-based superconducting approach sidesteps EUV dependency by leveraging U.S.-based foundries like SkyWater, enabling modular scaling with lower yield risk. In contrast, IonQ’s trapped-ion leadership faces supply chain fragility due to reliance on precision optics, now under scrutiny from emerging U.S.-EU quantum export controls. These regulations will likely push firms to diversify R&D partnerships—potentially elevating non-U.S. players like India’s C-DAC. To counter Rigetti’s cost-scaling edge, IonQ may deepen integrations with Azure Quantum and Amazon Braket to secure recurring cloud revenue. Over the next 18 months, capital will favor architectures compatible with semiconductor manufacturing, making cryo-CMOS co-integration the decisive battleground for QPU scalability.