Quantum Computing Pure-Play Stocks IonQ, Rigetti Computing, D-Wave Quantum, and Quantum Computing Inc. Just Issued a $749 Million Warning to Wall Street - The Motley Fool

There's little question that artificial intelligence (AI) has been one of the primary reasons Wall Street's major stock indexes have rallied to new all-time highs in 2025. The long-term use cases for AI, along with its sky-high addressable opportunity, have investors salivating. But it'd be a mistake to attribute Wall Street's rally this year solely to AI stocks. A strong argument can be made that quantum computing is the hottest thing since sliced bread, with trailing-12-month returns for quantum computing pure-play stocks IonQ (IONQ +3.92%), Rigetti Computing (RGTI +1.11%), D-Wave Quantum (QBTS +0.94%), and Quantum Computing Inc. (QUBT +5.68%) clocking in between 260% and 2,710%, as of the closing bell on Nov. 7. Though optimistic investors expect this technology to take off, the people who know these quantum computing stocks best are sending a markedly different message to Wall Street. Image source: Getty Images. Quantum computing stocks have taken Wall Street by storm In simple terms, quantum computers use the theories of quantum mechanics to run rapid, simultaneous calculations that classical computers, including the world's fastest supercomputers, can't perform, or can't complete in a timely manner. These specialized computers may have the ability to improve weather forecasting, can speed up the learning process of AI algorithms, and can be used to run molecular interaction simulations to aid drug-developers, among other real-world use cases. While the addressable market for quantum computing doesn't hold a candle to the $15.7 trillion estimated global opportunity for AI, per the analysts at PwC, Boston Consulting Group still expects quantum computing to create $450 billion to $850 billion in worldwide economic value by 2040. This would be a big enough opportunity for a laundry list of companies to benefit. Perhaps the most exciting aspect of quantum computers has been the early stage utility from select members of the "Magnificent Seven." CollapseNYSE: IONQIonQToday's Change(3.92%) $1.78Current Price$47.18IONQYTD1w1m3m6m1y5yPriceVS S&PKey Data PointsMarket Cap$17BDay's Range$42.82 - $48.7852wk Range$17.88 - $84.64Volume29MAvg Vol28MGross Margin-747.