Best Quantum Computing Stocks to Watch in 2026
Wiki Article
Quantum computing is one of the most talked-about emerging technologies of the next decade. Unlike traditional computers, which use bits (0s and 1s), quantum computers use quantum bits — or qubits — that can exist in multiple states at once. This enables them to solve certain types of problems exponentially faster than classical machines. As the quantum computing industry moves closer to real-world applications, investors are increasingly interested in stocks tied to this revolutionary field.
However, quantum computing stocks are highly speculative and can be volatile. They range from pure-play quantum hardware companies to established tech giants with quantum research divisions. Below is an in-depth look at some of the best quantum computing stocks to consider in 2026 — including their roles in the sector and what makes them noteworthy.
1. IonQ Inc. (IONQ)
IonQ is often regarded as the leading pure-play quantum computing stock — meaning its business is focused almost entirely on quantum technology. It develops trapped-ion quantum computers, which are known for high accuracy and low error rates compared with many other qubit technologies. Analysts have assigned IonQ shares a Strong Buy consensus with significant upside potential, and the stock boasts a strong long-term growth narrative in quantum innovation.
Why IonQ Matters
Focuses on trapped-ion quantum systems, a technology with high accuracy potential.
Works with major cloud platforms to offer quantum computing as a service.
Recent strategic moves include expanding hardware capabilities and securing supply chains.
Investment Considerations
IonQ has shown strong growth potential, but as a pure quantum play, it remains a high-risk, high-reward stock. Its profitability timeline and commercial adoption are still uncertain.
2. D-Wave Quantum Inc. (QBTS)
D-Wave Quantum is another pure-play quantum company, but it takes a different technical approach called quantum annealing. Rather than building general-purpose quantum computers like some competitors, D-Wave focuses on solving real-world optimization problems that are difficult for classical systems.
Why D-Wave Is Interesting
Long history: one of the first companies to commercialize quantum computers.
Its systems are already in use by universities, research institutions, and enterprise clients.
Analysts have given QBTS a Strong Buy rating, with meaningful upside potential.
Recent Developments
D-Wave continues signing major deals, expanding its offerings, and pursuing strategic acquisitions to broaden its technological footprint.
Investment Considerations
D-Wave’s distinct focus on annealing makes it a unique niche play. The stock can be volatile and may not benefit from the same breakthroughs tied to universal gate-based quantum systems.
3. Nvidia Corp. (NVDA)
Nvidia is not a quantum computer maker, but its role in the quantum ecosystem is critical. The company develops hardware and software that support the development and simulation of quantum systems — including tools that link classical and quantum computing.
Why Nvidia Is Relevant
Offers technologies that bridge classical and quantum computing, such as tools for simulation and hybrid workflows.
Positioned as a major player in broader AI and computing infrastructure — which complements quantum development.
Strong analyst ratings and growth potential make Nvidia an attractive indirect quantum play.
Investment Considerations
As Nvidia’s primary business is not quantum computing, its stock offers exposure with less risk than pure quantum companies, but also less direct leverage to quantum breakthroughs.
4. Microsoft Corp. (MSFT)
Microsoft is heavily investing in quantum through its Azure Quantum platform and research into topological qubits — a promising but challenging qubit design aimed at improving stability.
Why Microsoft Matters
Combines quantum development with its massive cloud computing business.
Azure Quantum integrates tools for developers and access to multiple quantum providers.
Represents a diversified play that pairs quantum with established enterprise revenue.
Investment Considerations
MSFT’s quantum efforts are part of a much larger business, meaning quantum advancements may not significantly move the overall stock price — but its stability and growth make it a strong long-term core holding.
5. IBM (IBM)
IBM has been a pioneer in quantum research for years, offering accessible quantum systems and a roadmap toward larger, more capable processors. Its ongoing development of higher-qubit machines and quantum software tools keeps it in the conversation for serious quantum investors.
Why IBM Is Worth Watching
Deep experience and infrastructure in quantum research and cloud services.
Offers access to quantum computers via IBM Cloud.
Still advancing toward fault-tolerant quantum computing.
Investment Considerations
Like Microsoft, IBM’s quantum segment is part of a diversified business. Growth in quantum could be slow to impact financial results, but the company’s leadership in the technology makes it a solid long-term play.
6. Honeywell International (HON)
Honeywell’s involvement in quantum computing comes through Quantinuum, its quantum division. Quantinuum has achieved key milestones in performance benchmarks and research into error correction — important steps toward practical quantum computing. Analysts have noted moderate buy interest in HON, especially due to its quantum segment’s progress.
Why Honeywell Counts
Quantinuum has delivered advanced quantum systems and software.
Institutional partnerships and development milestones add depth to its strategy.
Investment Considerations
Honeywell’s quantum exposure is indirect — perfect for investors seeking quantum alignment with stability and diversification.
Other Quantum-Related Stocks
There are additional companies that aren’t pure quantum players but still have meaningful involvement in the technology. These include Amazon (AMZN) with emerging quantum chip efforts, and other semiconductor firms exploring quantum software, middleware, or cryptography.
Risks and Considerations
Investing in quantum computing stocks is exciting, but it comes with challenges:
1. Early-Stage Technology
True quantum advantage — where quantum computers outperform classical systems in meaningful commercial tasks — is still under development. This means timelines are uncertain and breakthroughs may take longer than expected.
2. High Volatility
Quantum stocks, especially pure plays like IonQ and D-Wave, can see big price swings based on news, partnerships, and technical milestones.
3. Diversification Importance
Because the sector is nascent, spreading investments across pure quantum and diversified tech leaders can help balance risk and potential returns.
Conclusion
Quantum computing stocks offer investors a rare chance to participate in the next wave of technology innovation. From pure quantum companies like IonQ and D-Wave to tech giants such as Nvidia, Microsoft, and IBM, there are multiple ways to gain exposure — each with its own risk and reward profile.