Why Quantum Computing Stocks Rigetti Computing, Quantum Computing, and D-Wave Computing All Plunged Today

Jensen Huang just spoiled the quantum computing party.Quantum computing stocks took a dive Wednesday after investors' perceptions about the outlook for the sector were dramatically corrected.Valuations in the nascent space had been riding high for about a month -- ever since Alphabet (GOOG -0.95%) (GOOGL -1.02%) unveiled its new Willow quantum computing chip, which achieved benchmarks never reached before, including performing calculations in minutes that would have taken standard supercomputers billions of ...