$QMCO vs $RGTI: Data Storage Momentum Meets Quantum Computing Speculation QMCO (Quantum Corporation) is a data-storage business, not a quantum-computing company — a distinction that has repeatedly confused retail investors. RGTI (Rigetti Computing) is a pure-play quantum-computing developer with heavy losses and a very small revenue base. QMCO has shown strong recent momentum on record backlog, a debt-free balance sheet, and index inclusion, but trades at a sharply elevated valuation.