Quantum Computing Inc.vs.Rigetti Computing
QUBT 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.
Rigetti Computing is about 2.8× larger than Quantum Computing Inc. by market cap; year to date, Quantum Computing Inc. leads (−15.6% vs −25.3%).
Side by side
| QUBT | RGTI | |
|---|---|---|
| Market cap | $2B | $5.5B |
| Price | $8.66 | $16.54 |
| Today | −5.4% | −2.6% |
| Return YTD | −15.6% | −25.3% |
| Return 1Y | −54.8% | +26.9% |
| P/E | — | — |
| P/S | 450.7 | 548.9 |
| P/B | 1.2 | 9.4 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
Quantum Computing Inc.QUBT
Photonics-based quantum technology — integrated photonic chips, reservoir computing and quantum sensing, with an in-house thin-film lithium-niobate foundry.
Full QUBT 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 QUBT and RGTI sit in the full Quantum computing map — every segment from suppliers to end markets.Open the Quantum value chain →