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Quantum Computing Stocks IonQ, Rigetti, and D-Wave Have Soared Up to 5,400% Over the Trailing Year -- but History Offers a Dire Warning

History has a flawless track record of foreshadowing trouble for next-big-thing technologies and innovations -- and quantum computing just made the list.

By Sean Williams Oct 10, 2025 at 3:06AM EST

Key Points

  • Quantum computing stocks IonQ, Rigetti Computing, D-Wave Quantum, and Quantum Computing Inc. have soared by 720% to 5,400%, respectively, over the trailing year.
  • Quantum computers offer intriguing real-world solutions, but this technology is a long way from being mature.
  • Additionally, a time-tested valuation measure raises serious red flags for pure-play quantum computing stocks.

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