IonQvs.Rigetti Computing
IONQ vs RGTI · both in Quantum hardware & platforms, part of the Quantum computing value chain: The companies building the quantum computers themselves — trapped ions, superconducting qubits, photonics and annealing.
IonQ is about 2.9× larger than Rigetti Computing by market cap; year to date, IonQ leads (−4.5% vs −25.3%).
Side by side
| IONQ | RGTI | |
|---|---|---|
| Market cap | $16B | $5.5B |
| Price | $42.86 | $16.54 |
| Today | −4.3% | −2.6% |
| Return YTD | −4.5% | −25.3% |
| Return 1Y | −6.7% | +26.9% |
| P/E | 48.9 | — |
| P/S | 85.5 | 548.9 |
| P/B | 3.2 | 9.4 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
IonQIONQ
The leading trapped-ion quantum computing pure play — high qubit fidelity, access through the major cloud platforms and an aggressive, acquisition-driven roadmap toward quantum networking.
Full IONQ profile →Rigetti ComputingRGTI
Superconducting-qubit quantum computers — one of the few players that designs and fabricates its own quantum chips in-house.
Full RGTI profile →More comparisons in Quantum hardware & platforms
See where IONQ and RGTI sit in the full Quantum computing map — every segment from suppliers to end markets.Open the Quantum value chain →