Wave Quantum all fell more than 35%.

Of all the futuristic technologies being explored by big technology companies and start-ups, quantum computing is one of the most exciting. There are some types of computational problems that are simply impossible for even the world's most powerful supercomputer to solve.

D-Wave Quantum CEO Alan Baratz said Nvidia’s Jensen Huang is “dead wrong” about quantum computing after comments from the head of the chip giant spooked Wall Street on Wednesday.