Jasmine Birtles
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The Best Quantum Computing Stocks to Buy in 2025
Ruby Layram
19th Jun 2025
Quantum computing sounds sci-fi but it’s becoming very much here, and smart investors are paying attention. These machines use qubits that process information in ways far beyond traditional computers. That means real breakthroughs for fields like cybersecurity, drug discovery, finance, and AI.
Quantum’s still early-stage, volatile, and speculative, but its explosive growth potential makes it an appealing sector for risk-tolerant investors in 2025.
Here are six quantum stocks worth considering and why you might want to consider them in 2025.
1. IonQ (IONQ)
IonQ is a pure-play quantum company based on trapped-ion technology, IonQ sells their systems via cloud platforms like AWS, Google Cloud, and Microsoft Azure.
It’s a top performer in the space, with shares surging over 200–300% in the past year.
CEO Niccolo de Masi aims for IonQ to become “the Nvidia of quantum,” and recent partnerships support that claim.
Why it stands out: Pure exposure, strong tech, and fast growth, but definitely high-risk.
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2. D‑Wave Quantum (QBTS)
The original quantum company, focused on quantum annealing for optimisation problems.
Unlike gate-based systems, D‑Wave is already commercial, with customers like Jülich Supercomputing Centre and Mastercard.
Their Advantage2 machine touts 1,200+ qubits and real use cases in logistics and AI.
Why it stands out: Real sales today and hefty stock gains (up 121% YTD). Still volatile and speculative.
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3. IBM (IBM)
You’ve probably heard of this one before! IBM is a quantum pioneer with broad momentum: its Condor chip hit 1,000+ qubits in 2023, and IBM aims for a fault-tolerant quantum computer by 2029.
The company already generates around $1bn in quantum-related revenues, with strong enterprise and cloud partnerships.
It’s currently trading at a forward P/E ~24, reasonable for a tech giant.
Why it stands out: Strong balance sheet, measurable quantum progress, real commercial traction.
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4. Alphabet (GOOGL/GOOG)
Although most people know if for the search engine, Google is actually a big player in the quantum computing space.
Google’s quantum Sycamore and newer Willow chip achieved quantum supremacy in benchmark tests .
These breakthroughs, combined with AI prowess and robust cash flows, give Alphabet a quantum edge, but it’s still a small slice of a huge business.
Why it stands out: Low-cost entry into quantum and AI growth, great for cautious investors.
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5. Microsoft (MSFT)
Microsoft is pushing a topological qubit revolution via its Majorana 1 chip, and its Azure Quantum platform makes quantum computing available via the cloud.
With billions in revenue and deep enterprise reach, it’s a low-risk way to tap quantum upside.
Why it stands out: Strong cloud integration, long-term tech pipeline, stable footing in a volatile space.
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6. Rigetti Computing (RGTI)
This is a smaller, riskier company that builds superconducting qubit systems and sells quantum-as-a-service. Its latest Ankaa‑3 system boasts high fidelity and strong potential.
Why it stands out: Big upside if it hits key milestones, but still early, loss-making, and unconventional.
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eToro is a leading UK investing platform that offers stocks, ETFs, commodities AND crypto.
Why Quantum Is Worth Watching in 2025
So, why is quantum computing such a hot topic amongst investors this year?
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Technology is cracking the code: IBM, Google & Microsoft are pushing error correction and scalability .
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Pure-play names are gaining real traction: D‑Wave is shipping systems today, and IonQ has burst onto the scene.
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Huge long-term potential, from new drug discovery to cybersecurity. Sector projects 30%+ CAGR over the next decade.
Final Thoughts
Quantum isn’t your typical growth play, it’s a speculative, high-upside, medium-to-long-term bet. Whether you’re drawn to the potential of pure-play firms like IonQ or D‑Wave, or prefer the safety of tech giants like IBM, Alphabet, or Microsoft, be ready for volatility and a slow-building revolution.
Although this industry is exciting, I would personally treat quantum stocks as a small satellite position in your portfolio, maybe 2–5% of your overall investments, and look to diversify across both pure plays and big tech.
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Disclaimer: MoneyMagpie is not a licensed financial advisor and therefore information found here including opinions, commentary, suggestions or strategies are for informational, entertainment or educational purposes only. This should not be considered as financial advice. Anyone thinking of investing should conduct their own due diligence. Companies listed above are not necessarily endorsed by Money Magpie. When investing your capital is at risk.
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