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

Key Takeaways A number of stocks in the quantum computing industry sank Wednesday after Nvidia CEO Jensen Huang said the technology is likely still years away.Stocks of Rigetti Computing, Quantum Computing,

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. The long wait outlined by Huang for "very useful quantum computers" throws cold water on a sector that was already expected to spend millions more on the technology,