The Quantum Bubble Is Real Enough to Take Seriously

The quantum computing industry faces potential valuation concerns despite real technological progress. Pure-play quantum companies like D-Wave and Rigetti show impressive stock gains but trade at extremely high price-to-sales multiples (700x+ for D-Wave) with minimal revenues. While some companies like IonQ demonstrate strong commercial traction and substantial cash reserves, the sector faces profitability challenges, high R&D costs, and increasing competition from tech giants like Intel and IBM entering the quantum space.