A Yahoo Finance analysis indicates that IonQ (NYSE: IONQ) currently has a technology edge over Rigetti Computing (NASDAQ: RGTI), primarily due to its higher qubit fidelity and all-to-all connectivity in trapped-ion systems. IonQ's Forte systems show a median 2-qubit fidelity of 99.3%-99.5%, compared to Rigetti's 108-qubit Cepheus system at 99.1%. However, Rigetti's superconducting qubits are significantly faster (60 nanoseconds per 2-qubit operation vs. IonQ's 950 microseconds).

Both companies are working to scale their systems; IonQ's next-gen 256-qubit Superion platform is expected for commercial delivery in 2027, while Rigetti aims for a 1,000-qubit system with 99.9% fidelity within three years. The analysis concludes that IonQ's lead is not secure, as both need to prove their advantages persist with increasing qubit counts.