Shares of quantum computing focused companies slumped on Wednesday, after Nvidia's (NASDAQ:NVDA) CEO Jensen Huang said that "very useful" quantum computers are over a decade away. Rigetti Computing ...

Investors absorbed a report that President-elect Donald Trump is considering declaring a national economic emergency to pave the way for proposed tariffs.

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

Shares in the chip designer were up 0.4% at $140.69 in premarket trading. Futures tracking the benchmark S&P 500 index were ...