Quantum computing stocks were rallying Friday, the latest move in a roller coaster of a week.Shares of D-Wave Quantum, IonQ, Rigetti Computing, and Quantum Computing were up 8%, 7.4%, 2.9%, and 0.5%,

Rigetti Computing is at the forefront of the quantum computing industry, but the company has a speculative stock valuation.

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