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.

Quantum computing stocks are tumbling after Nvidia CEO Jensen Huang warned that the technology is a long way off.

Wave were down sharply after Nvidia’s Jensen Huang said that “very simple quantum computers” could be 20 years away.

Quantum computing stocks dropped Wednesday after Nvidia CEO Jensen Huang declared that useful quantum computers are likely decades in the future.

Quantum computing stocks sank on Wednesday, pausing a year-long rally, after Nvidia CEO Jensen Huang said the technology's practical use was likely two decades away.

NVDA CEO Huang estimates 20 years before useful quantum computers. AMC CEO feels shareholder pain. Sportsbooks hit as too many NFL favorites win.

Addressing a question from an audience member, Huang said 15 years would probably be on the "early side" and that 30 years would likely be on

The shares of IonQ Inc. and other companies linked to quantum computing tumbled in extended trading on Tuesday after Nvidia Corp. Chief Executive Officer Jensen Huang said “very useful” quantum computers are likely decades away.

Rigetti Computing, IonQ, and other quantum stocks fell more than 40% after Nvidia CEO Jensen Huang told Wall Street analysts that “very useful quantum computers” are likely 20 years away.