Key Takeaways
QBTS outperformed IBM with a 1312.3% stock gain in a year, fueled by enterprise traction and tech rollouts. D-Wave’s Advantage2 system with 4,400 qubits and hybrid solvers is now available via cloud and on-prem. QBTS ran a materials simulation in minutes that would take classical systems over a million years.
In 2025, D-Wave Quantum (QBTS Quick QuoteQBTS – Free Report) and International Business Machines Corporation (IBM Quick QuoteIBM – Free Report) have emerged as prominent players in quantum computing, a niche that is currently getting commercialized at an accelerating pace. The two companies pursue fundamentally different approaches in terms of market focus, technological architecture and strategic scale. D-Wave Quantum, a pure-play quantum computing firm, concentrates on practical, near-term applications using its annealing-based systems. Its first-quarter 2025 performance highlighted expanding customer adoption, international growth and growing traction in hybrid quantum-classical solutions aimed at solving real-world optimization problems.
IBM, in contrast, is integrating quantum computing into its broader hybrid cloud and AI strategy, with a long-term focus on fault tolerance and scalability. In the first quarter, it unveiled the first IBM Quantum System Two outside the United States at RIKEN in Japan, powered by the 156-qubit Heron processor and outlined plans for IBM Quantum Starling, a large-scale, fault-tolerant quantum system targeted for 2029. By linking quantum systems with classical supercomputers like Fugaku, IBM is positioning itself at the forefront of scientific and commercial innovation.
For investors, comparing these two quantum frontrunners raises a compelling debate: is it better to bet on QBTS’ speed-to-market or IBM’s scale-driven vision? Let’s find out.
QBTS Outperforms IBM, Industry, Benchmark
Over the past year, shares of D-Wave Quantum have skyrocketed 1312.3%, handily outperforming the sector’s 8.2% gain and the S&P 500’s 11% rally. IBM outperformed the sector and benchmark but underperformed QBTS with a 76.2% rally in its stock price during the same period.
One-Year Share Price Comparison
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Why D-Wave is a Compelling Buy Right Now
Growing Commercial Momentum with a Production-Ready Quantum System: D-Wave Quantum is gaining strong traction with enterprise customers. It signed multiple six- and seven-figure deals in the first quarter of 2025, including a landmark $5 million multi-year subscription with a top-five global financial services firm. Added to this, in May 2025, QBTS announced the general availability of its sixth-generation Advantage2 quantum computer featuring over 4,400 qubits, enhanced 20-way connectivity, doubled coherence time and 75% noise reduction. Available both on-premise and via the Leap cloud platform, Advantage2 delivers commercial-grade performance today, accelerating adoption across optimization, AI and materials science applications.
Real-World Impact Through Hybrid Quantum-Classical Solutions and Supremacy: D-Wave’s hybrid quantum-classical platform is seeing increasing adoption, with its Quantum Cloud Service (QCS) and hybrid solvers enabling enterprises to solve complex optimization problems today. These solutions are already in production, delivering material benefits. Ford Otosan cut scheduling time by over 80%, and Japan Tobacco accelerated drug-discovery simulations, while Julich Supercomputing Centre and Davidson Technologies integrated D-Wave systems into exascale-class infrastructures. Adding to this momentum, QBTS recently demonstrated quantum supremacy in a materials-science simulation, executing in minutes what would take one million years and enormous energy on the fastest classical supercomputers, validating the company’s near-term commercial and scientific potential.
IBM’s Key Progress in Quantum Computing
Quantum System Two Deployed at RIKEN with Quantum-Classical Integration: IBM launched its first Quantum System Two outside the United States at RIKEN in Japan, marking a major breakthrough in global quantum infrastructure. Based on the 156-qubit Heron processor, this system is seamlessly integrated with Fugaku, one of the world’s most powerful classical supercomputers. This setup creates a quantum-centric supercomputing environment, featuring low-latency connections between quantum and classical processors. The result is a powerful platform capable of parallelized workloads, real-time hybrid algorithm execution and advanced compilation protocols, pushing the boundaries of applied quantum computing in scientific and industrial research.
Advancing Quantum Hardware and Fault Tolerance: Heron, Starling and qLDPC Architecture: IBM’s next-generation Heron processor, now live in Japan’s RIKEN lab, delivers a two-qubit error rate as low as 1×10-³ and a CLOPS speed of 250,000, a tenfold improvement over its Eagle predecessor. This leap enables the execution of quantum circuits beyond the reach of brute-force classical simulations. Complementing this hardware breakthrough, IBM unveiled its roadmap to fault tolerance, with IBM Quantum Starling expected by 2029. Starling will support 100 million quantum operations across 200 logical qubits, laying the foundation for future systems like Blue Jay, which targets 1 billion operations using 2,000 logical qubits.
Average Target Price for QBTS Suggests an Upside
Based on short-term price targets offered by six analysts, D-Wave Quantum’s average price target represents an increase of 7.1% from the last closing price of $14.94.
Image Source: Zacks Investment Research
Based on short-term price targets offered by 19 analysts, IBM’s average price target represents a decline of 11.6% from the last closing price of $289.18.
Image Source: Zacks Investment Research
QBTS – A Buy Now
Given their contrasting strategies, D-Wave Quantum presents a stronger near-term buying opportunity than IBM. While IBM is building toward long-term, fault-tolerant systems with commercial viability expected post-2029, D-Wave is already delivering enterprise value with its production-ready Advantage2 system. Its real-world deployments, recent quantum supremacy milestone, and strong customer momentum underscore a clear first-mover edge in commercial quantum computing. With QBTS outperforming IBM over the past year and analysts projecting further upside, its Zacks Rank #2 (Buy) suggests a more favorable risk-reward profile than IBM’s Rank #3 (Hold). You can see the complete list of today’s Zacks Rank #1 (Strong Buy) stocks here.
