Rigetti Computing (RGTI), Quantum Computing (QUBT) and D-Wave Quantum (QBTS) shares fell sharply on Monday after Meta Platforms' (META) CEO Mark Zuckerberg expressed doubts about the near-term practicality of quantum computing technology.

During an appearance on the Joe Rogan Experience podcast, Zuckerberg reportedly said that quantum computing was "still quite a ways off from being a very useful paradigm."

Rigetti shares fell 32%, while Quantum Computing saw a 27% drop and D-Wave Quantum was down by more than 33%. Shares of all three companies were up 2% to 5% in premarket trading on Tuesday.

Zuckerberg's comments echoed those by Nvidia (NVDA) CEO Jensen Huang, who said last week that "very useful quantum computers" could be 20 years away.

Rigetti Computing, Quantum Computing, and D-Wave Quantum did not immediately respond to requests for comment from MT Newswires.