Quantum computing stocks are back on the rise. Here’s why IONQ, QBTS, RGTI, and QUBT are up - Fast Company

Quantum computing stocks surged in April 2026, with IONQ, QBTS, RGTI, and QUBT leading gains amid breakthroughs in hardware and commercialization. IONQ achieved a key milestone by developing the first photonic interconnect for networked quantum systems, enabling scalable, long-distance quantum communication. The advance positions IONQ as a frontrunner in modular quantum computing, addressing a critical bottleneck for practical, large-scale quantum networks. Investor confidence grew as analysts highlighted IONQ’s progress in error correction and system integration, driving its stock upward. Broader market optimism reflects accelerating quantum adoption, with QBTS, RGTI, and QUBT benefiting from partnerships and government contracts in defense and logistics.