Is Rigetti Computing a Top Quantum Computing Stock to Buy Now?

Rigetti is down about 50% in 2026 and roughly 80% from its all-time high, despite winning a $100 million CHIPS Act contract with the U.S. Department of Defense. Its 108-qubit system has 99.1% two-qubit gate fidelity, compared with IonQ’s expected 99.99% accuracy for a 256-qubit computer in 2027. Second-quarter revenue was $5 million for Rigetti versus $80 million for IonQ; the article views Rigetti as falling behind and favors IonQ.

Analysis

The key investment question is not which architecture has the better headline qubit or gate-fidelity figure, but which can deliver useful, repeatable workloads after error correction and scaling costs. Cross-architecture specs are not directly comparable; logical-qubit performance, system uptime, independent benchmarks, and customer workload results matter more. If IonQ converts its claimed technical lead into repeatable customer wins, it could capture early budgets and widen the gap through learning effects. But the revenue comparison cited is not proof of durable commercial demand: contract timing, scope, and revenue recognition can make quarterly figures lumpy.

Rigetti’s government award may reduce near-term financing pressure, but it is not equivalent to unrestricted cash or proof of product-market fit. Verify payment milestones, execution obligations, and whether the award changes cash burn or customer adoption. Near term, risk appetite and quantum-stock positioning may dominate fundamentals. Over 1–3 months, watch contract disclosures, cash burn, bookings, and independent performance evidence. Over 6–18 months, the decisive test is whether either company demonstrates error-corrected performance and repeat customer workloads; the 2029/2030 commercialization timeline remains highly uncertain.

Contrarian risk: the article’s simple specification comparison may overstate IonQ’s advantage, while the sector’s commercialization expectations may still be too optimistic overall. A technical lead only merits a premium if it produces paid demand and scalable economics.

Key Decisions for Investors

• Do not treat the headline fidelity comparison as a standalone basis for a short in RGTI. Before taking relative exposure, compare valuation, cash runway, dilution risk, contract economics, and comparable independent system benchmarks; these are not provided.
• Prefer IONQ over RGTI on a relative watchlist, not as an unconditional long: consider a modest long IONQ / short RGTI pair only if valuation and borrow costs are acceptable and the spread is not already pricing in a large execution gap. Size for high volatility and the risk that architecture benchmarks prove non-comparable.
• For RGTI, track award payment milestones, quarterly cash burn, bookings, and customer concentration. A failure to translate the award into funded development progress or repeat commercial workloads would weaken the thesis; improving independently verified performance plus rising paid demand would falsify the bearish view.
• Avoid extrapolating a near-term quantum commercialization date into current revenue forecasts. Reassess on independently verified error-correction progress and evidence of recurring customer workloads; absent those, no broad sector exposure is warranted.