Shares of Rigetti Computing, Quantum Computing, IonQ and D-Wave fell sharply after Nvidia’s Jensen Huang said that “very simple quantum computers” could be 20 years away.

Their biggest test came last Wednesday against the Oklahoma City ... This blowout loss was nothing but a harsh reality check that the Cavaliers aren't invincible. The final score doesn't do ...

reflecting hype that’s at odds with the current financial reality of these businesses, which still bring in minimal revenue. The stocks fell hard on Wednesday, however, after Nvidia Corp.’s ...