Quantinuum's IPO will show the market how far IonQ, Rigetti and D-Wave lag on logical qubits, the metric that matters for fault-tolerant computing, and that gap will soon be priced. Quantinuum has 48 logical qubits on Helios versus zero or few at the listed names. The IPO crowns the fault-tolerance leader, not the sector winner: IonQ pursues vertical integration across networking, security and defense, Rigetti bets on superconducting scale, and all must turn capability into revenue. x.comÂ




