Core Viewpoint - Quantum computing stocks, particularly Rigetti Computing and D-Wave Quantum, are trading at unsustainable valuations, with share prices increasing dramatically since January 2023, leading to expectations of a market correction in the near future [1][2]. Quantum Computing Market Overview - Practical quantum computers are estimated to be at least a decade away, with no company having developed a large-scale, fault-tolerant quantum computer capable of useful computations [4][5]. - Experts predict that the quantum computing market will grow at an annual rate of 21%, reaching $4 billion by 2030, while AI spending is expected to grow at 36% annually, reaching $1.8 trillion in the same timeframe [6][7]. Rigetti Computing - Rigetti specializes in superconducting quantum computing and has a market capitalization of $8.5 billion, with a current stock price of $25.84 [9]. - The company has developed multichip quantum processors, which are expected to help scale quantum systems, but practical applications are not anticipated until late 2027 [10]. - Rigetti's stock is currently valued at 1,025 times sales, significantly higher than Palantir's 120 times sales, indicating an unsustainable valuation that could lead to a major correction [11]. D-Wave Quantum - D-Wave focuses on quantum annealers, which are easier to scale and have nearly 5,000 physical qubits, but their utility is limited compared to gate-based systems [12][13]. - The company has established strong client relationships as a first mover in the market, yet its stock trades at 325 times sales, which is still considered nonsensical given the projected growth of quantum computing sales [14].

Most investors think quantum computing is science fiction. They're wrong -- it's a scientific fact, with quantum stock gains from the leading pure-play developers ranging from 504% to 1,220% over the past 12 months: Yes, this market is nascent. Yes, the technology faces massive hurdles. But that's exactly why the opportunity is so compelling for investors willing to think in decades, not quarters. Yet the quantum computing market remains largely uncharted territory -- a vast expanse where no single technolo ...