10 Best Quantum Computing Stocks to Buy in 2025

Quantum computing stocks chart showing IBM Microsoft Google IonQ stock performance with risk tier classifications for investors

Here’s what nobody’s telling you about quantum computing stocks: while everyone’s chasing AI plays, the smartest money is quietly positioning in quantum – a technology that could make today’s supercomputers look like calculators.

And I’m not talking about some far-off sci-fi future. Google’s Willow chip just solved a problem in minutes that would take classical computers longer than the age of the universe. IBM’s breaking speed records. And pure-play companies like IonQ are up 300% in a year.

The opportunity? Quantum computing could hit billion by 2035. But here’s the catch – most of these stocks are speculative, volatile, and misunderstood by retail investors.

In this guide, I’m breaking down the 10 best quantum computing stocks across three risk tiers, showing you exactly which ones deserve a spot in your portfolio and which ones are just day-trading vehicles.

What you’ll learn:

  • Which established tech giants are winning the quantum race (lowest risk)
  • The pure-play quantum stocks with 10x potential (high risk, high reward)
  • The critical metrics that actually matter for quantum investors
  • How to play quantum computing through options (my favorite strategy)
  • Real portfolio allocation strategies based on your risk tolerance

Let’s dive in.

Understanding Quantum Computing Stocks: Risk Tiers Explained

Before we jump into individual stocks, you need to understand the three categories of quantum plays. This framework will save you from blowing up your account on speculative garbage.

🟢 Tier 1 – Established Giants (Lower Risk)

Who they are: IBM, Microsoft, Google, Honeywell, Nvidia, Amazon

The deal: These companies have massive profitable core businesses. Quantum computing is one division among many. If quantum fails, these stocks don’t go to zero.

Volatility: Low to moderate. They move with the broader market.

My take: This is where 60-70% of your quantum exposure should live if you’re building a long-term portfolio. You get quantum upside with downside protection.

🟡 Tier 2 – Pure-Play Growth (Medium-High Risk)

Who they are: IonQ, Rigetti, D-Wave

The deal: These companies are 100% focused on quantum computing. They’re burning cash, not profitable yet, but could be 10-baggers if quantum takes off.

Volatility: High. These stocks can swing 20-30% in a week on news.

My take: Allocate 20-30% of quantum exposure here. These are for aggressive growth investors who can stomach volatility. I personally trade options on these for leverage.

🔴 Tier 3 – Speculative Moonshots (Highest Risk)

Who they are: Quantum Computing Inc., micro-caps, pre-revenue startups

The deal: High risk, high reward. Many will fail. A few could 50x.

Volatility: Extreme. Can go up 100% or down 50% in days.

My take: Only allocate 5-10% here, and only with money you can lose completely. These are day-trading vehicles or lottery tickets, not investments.

Quick Comparison: All 10 Quantum Stocks at a Glance


🟢 TIER 1: Established Giants (Lower Risk)
IBM (NYSE: IBM)
Market Cap: ~0B | Profitable: ✅ Yes | Rating: ⭐⭐⭐⭐⭐ Strong Buy
Microsoft (NASDAQ: MSFT)
Market Cap: ~.1T | Profitable: ✅ Yes | Rating: ⭐⭐⭐⭐⭐ Strong Buy
Google/Alphabet (NASDAQ: GOOGL)
Market Cap: ~T | Profitable: ✅ Yes | Rating: ⭐⭐⭐⭐ Buy
Honeywell (NASDAQ: HON)
Market Cap: ~0B | Profitable: ✅ Yes | Rating: ⭐⭐⭐ Buy
Nvidia (NASDAQ: NVDA)
Market Cap: ~.5T | Profitable: ✅ Yes | Rating: ⭐⭐⭐ Hold
Amazon (NASDAQ: AMZN)
Market Cap: ~T | Profitable: ✅ Yes | Rating: ⭐⭐⭐⭐ Buy

🟡 TIER 2: Pure-Play Growth (Medium-High Risk)
IonQ (NYSE: IONQ)
Market Cap: ~B | Profitable: ❌ No | Rating: ⭐⭐⭐⭐ Speculative Buy
Rigetti Computing (NASDAQ: RGTI)
Market Cap: <B | Profitable: ❌ No | Rating: ⭐⭐⭐ High Risk
D-Wave Systems (NYSE: QBTS)
Market Cap: <B | Profitable: ❌ No | Rating: ⭐⭐⭐ High Risk

🔴 TIER 3: Speculative Moonshots (Highest Risk)
Quantum Computing Inc. (NASDAQ: QUBT)
Market Cap: ~B | Profitable: ❌ No | Rating: ⭐⭐ Day Trade Only

Market caps and ratings as of November 2025

Tier 1: Established Giants – The Safe Quantum Stocks Plays

These are your bread-and-butter quantum holdings. Buy them. Hold them. Sleep well at night.

1. IBM (NYSE: IBM) – The Quantum Computing Pioneer

Risk Tier: 🟢 Established Giant
Market Cap: ~0B
Quantum Focus: High (dedicated Quantum Business Unit)
My Rating: ⭐⭐⭐⭐⭐ Strong Buy

If you want exposure to quantum computing without gambling your retirement account, IBM is your stock.

Why IBM Dominates

IBM’s been in the quantum game since the 1990s – back when most of us thought quantum computing was science fiction. That three-decade head start matters.

Here’s what IBM’s doing right:

Real Revenue, Real Customers
Unlike pure-play quantum stocks burning through cash, IBM’s Quantum Business Unit is already monetized. Their cloud-based quantum access lets enterprises and researchers tap into quantum computers without buying hardware.

Goldman Sachs is using it. HSBC is using it. These aren’t lab experiments – they’re real revenue contracts.

Recent Breakthrough: 10x Speed Increase
IBM just unveiled a quantum algorithm that runs ten times faster than previously thought possible. When you see breakthroughs like this, the stock moves. IBM’s quantum division is now a legitimate growth driver for the broader company.

The Starling Vision
IBM’s publicly committed to building the “Starling” quantum computer by 2029. This isn’t vaporware – they’re hitting milestones and bringing in partners at every stage. Each achievement validates IBM as the leader in commercial quantum computing.

The Qubit Challenge (And Why It Matters)

Here’s what most investors miss: the biggest problem in quantum computing isn’t speed – it’s stability.

Qubits (quantum bits) are incredibly error-prone. They’re so sensitive that a tiny vibration or temperature change causes errors. IBM’s focused on two critical improvements:

  1. Error correction – Making qubits more reliable
  2. Qubit connectivity – Getting them to work together efficiently

IBM’s recent test deploying a quantum algorithm on an AMD chip proves they’re solving this. They showed advanced quantum techniques can work without ultra-expensive custom hardware. That’s huge for enterprise adoption.

The Partnership Strategy

IBM isn’t going it alone. Smart move.

They’re partnering with:

  • AMD for chip integration
  • HSBC for quantum machine learning in bond trading
  • Research institutions worldwide for algorithm development

The HSBC partnership is particularly interesting. They’re using quantum computers + machine learning to speed up bond trading workflows. This is quantum computing solving real business problems, not just theoretical physics.

The Investment Case

Why I like IBM for quantum exposure:

  • ✅ Diversified revenue streams (you’re not betting the farm on quantum alone)
  • ✅ Profitable core business funds quantum R&D
  • ✅ First-mover advantage with a 30-year head start
  • ✅ Cloud delivery model = recurring revenue
  • ✅ Lower volatility than pure-play quantum stocks

The risks:

  • ⚠️ Large company = slower growth potential
  • ⚠️ Quantum is still small % of IBM’s total revenue
  • ⚠️ Competition from Microsoft and Google

My play: IBM is my core quantum holding. I own shares for the long term, and I sell covered calls 30-45 days out to generate income while I wait for quantum to scale. The premium offsets the slower growth, and I’m fine getting called away at a 15-20% gain.

Bottom line: If you want one quantum stock you can buy and hold for 5+ years, IBM is it.

2. Microsoft (NASDAQ: MSFT) – The Cloud Quantum Leader

Risk Tier: 🟢 Established Giant
Market Cap: ~.1T
Quantum Focus: Medium (integrated into Azure)
My Rating: ⭐⭐⭐⭐⭐ Strong Buy

Microsoft isn’t just building quantum computers – they’re building the infrastructure that makes quantum accessible to everyone. That’s the real play here.

Azure Quantum: The Game Changer

Microsoft’s Azure Quantum platform is what sets them apart. Instead of forcing customers to use only Microsoft’s quantum hardware, they give you access to multiple quantum systems from different providers – all through one cloud interface.

Think about what this means: a company in Europe can test quantum algorithms on IonQ’s trapped-ion system in the morning, switch to Rigetti’s superconducting qubits in the afternoon, and run simulations on Microsoft’s own hardware in the evening. All without leaving Azure.

This isn’t about being the best quantum hardware company. It’s about being the platform everyone uses to access quantum computing. And in tech, the platform always wins.

The Developer Advantage

Here’s where Microsoft crushes it: they’re making quantum programming accessible.

Their Q# programming language integrates directly with Visual Studio – the tool millions of developers already use. This matters because quantum computing has a massive talent shortage. By letting regular software engineers experiment with quantum code using familiar tools, Microsoft is building the developer ecosystem faster than anyone else.

A developer can write quantum code, test it on a simulator, then deploy to real quantum hardware – all in the same workflow. That’s powerful.

The Topological Qubit Moonshot

Microsoft is taking a different technical approach than competitors, and if it works, it could be game-over for everyone else.

They’re building “topological qubits” using exotic materials that could theoretically pack a million qubits on a chip the size of your palm. Compare that to IBM’s current systems with a few hundred qubits that need entire rooms.

The breakthrough? Microsoft’s Majorana 1 chip demonstrated they can measure these qubits accurately – a critical step nobody else has achieved. If they can scale this, Microsoft could leapfrog everyone in the quantum race.

Why Microsoft Is A Smart Quantum Play

The bull case:

  • ✅ Azure is already a 0B+ business – quantum is pure upside
  • ✅ Platform approach = they win regardless of which quantum tech succeeds
  • ✅ Developer tools create network effects and lock-in
  • ✅ Deep pockets to fund R&D for decades
  • ✅ Integration with AI services creates compound value

The bear case:

  • ⚠️ Quantum revenue is tiny relative to Microsoft’s size
  • ⚠️ Topological qubits are unproven at scale
  • ⚠️ Stock already expensive (trades at premium multiples)

My take: Microsoft is a core holding regardless of quantum. The quantum upside is just a free call option on a stock I want to own anyway. I hold shares and occasionally sell covered calls when volatility spikes.

3. Google/Alphabet (NASDAQ: GOOGL) – The Quantum Speed Demon

Risk Tier: 🟢 Established Giant
Market Cap: ~T
Quantum Focus: High (Google Quantum AI division)
My Rating: ⭐⭐⭐⭐ Buy

Google made headlines when their Willow chip solved a problem in minutes that would take classical supercomputers 10 septillion years. Let that sink in.

The “Quantum Supremacy” Moment

Google was the first to achieve “quantum supremacy” – the point where a quantum computer solves something a classical computer practically can’t. This wasn’t a lab trick. Willow’s performance proved quantum computers can deliver exponential speedups on real problems.

Here’s why this matters for investors: quantum supremacy validates the entire thesis. Before Willow, skeptics could argue quantum was overhyped. Not anymore. Google proved the technology works.

What Makes Google Dangerous

Speed and scale: Google Quantum AI publishes more breakthroughs than almost anyone. Their research output is insane. While they don’t announce every advancement, the pace of innovation suggests they’re ahead of most competitors.

Error correction progress: Like IBM, Google’s tackling the stability problem. They’ve made significant progress in error correction – the ability to catch and fix quantum computing mistakes in real-time. This is the bottleneck preventing quantum from going mainstream.

Cloud accessibility: Google offers quantum computing through Google Cloud, making their tech available to businesses and researchers worldwide. A startup in Asia or a university in Europe can access Google’s quantum processors without building their own lab.

The Investment Case

Google is harder to value for quantum because they don’t break out quantum revenue separately. But here’s what we know:

Why Google makes sense:

  • ✅ Proven quantum supremacy with Willow chip
  • ✅ World-class AI + quantum research talent
  • ✅ Cloud distribution model (same as Azure and AWS)
  • ✅ Strong composite rating (98) and relative strength (90)
  • ✅ Profitable core business funds unlimited quantum R&D

The concerns:

  • ⚠️ Regulatory risk (antitrust scrutiny)
  • ⚠️ Quantum is small part of Alphabet’s business
  • ⚠️ Less transparent about quantum progress than IBM

My strategy: I own Google for their AI dominance. The quantum work is a bonus. I don’t trade options on GOOGL as actively because the premiums are lower relative to the stock price, but it’s a solid long-term hold.

4. Honeywell (NASDAQ: HON) – The Industrial Quantum Play

Risk Tier: 🟢 Established Giant
Market Cap: ~0B
Quantum Focus: Medium (merged quantum unit into Quantinuum)
My Rating: ⭐⭐⭐ Buy

Honeywell is the dark horse in quantum computing that most retail investors overlook. Big mistake.

Why Honeywell Is Different

Honeywell isn’t trying to be IBM or Google. They’re focused on bringing quantum computing to industrial applications – their bread and butter.

Think aerospace, manufacturing, logistics, cybersecurity. These are sectors where Honeywell already dominates and where quantum computing can deliver immediate ROI.

The Quantinuum Partnership

Honeywell merged its quantum division with Cambridge Quantum to form Quantinuum – one of the most advanced quantum computing companies in the world. Honeywell maintains significant ownership and strategic control.

This was smart. Instead of competing head-to-head with tech giants, Honeywell combined their hardware expertise with Cambridge’s software prowess. The result? A quantum company focused on solving real-world industrial problems.

What Quantinuum does:

  • Trapped-ion quantum computers (high stability, low error rates)
  • Quantum cybersecurity solutions
  • Industrial optimization algorithms
  • Chemistry and materials science simulations

The Practical Applications

Here’s where Honeywell shines: they’re not waiting for “someday” – they’re deploying quantum solutions now.

Aerospace: Optimizing flight paths, improving materials testing
Manufacturing: Process automation, supply chain optimization
Cybersecurity: Quantum-resistant encryption for critical infrastructure
Energy: Grid optimization, resource allocation

These aren’t theoretical use cases. Honeywell’s customers are billion-dollar industrial companies that need solutions today, not in 10 years.

Investment Perspective

Why Honeywell makes sense for quantum exposure:

  • ✅ Industrial focus = shorter path to revenue than pure research plays
  • ✅ Trapped-ion technology has lower error rates than competitors
  • ✅ Quantinuum partnership combines hardware + software expertise
  • ✅ Diversified business (quantum failure doesn’t tank the stock)
  • ✅ Strong dividend (around 2%) while you wait for quantum growth

The drawbacks:

  • ⚠️ Quantum upside limited by Quantinuum stake (not 100% ownership)
  • ⚠️ Less “sexy” than pure tech plays
  • ⚠️ Stock moves more with industrial economy than quantum news

My play: Honeywell is a sleep-well-at-night holding. Buy it for the dividend and industrial exposure, get quantum upside as a bonus. I hold shares but don’t actively trade it.

5. Nvidia (NASDAQ: NVDA) – The Quantum Infrastructure King

Risk Tier: 🟢 Established Giant
Market Cap: ~.5T
Quantum Focus: Low (quantum is infrastructure play)
My Rating: ⭐⭐⭐ Hold

Nvidia might not be building quantum computers, but they’re building the picks and shovels for the quantum gold rush.

The Infrastructure Angle

Here’s the thesis: quantum computers need massive classical computing support. They don’t work in isolation.

Quantum processors handle the exotic quantum calculations, but they need regular GPUs to:

  • Run simulations before quantum execution
  • Process and analyze quantum results
  • Control quantum hardware in real-time
  • Bridge classical and quantum systems

Nvidia’s GPUs are the standard for all of this. When IBM, Google, or IonQ build a quantum system, they’re buying Nvidia hardware to support it.

Nvidia’s NVQLink technology connects quantum processors with classical systems at microsecond speeds. This is critical because quantum computers need to communicate with traditional computers constantly.

Here’s why this matters: quantum computing often involves running millions of hybrid operations – part quantum, part classical. NVQLink makes this seamless.

Nvidia isn’t picking winners in the quantum hardware race. They’re selling infrastructure to everyone – IBM, IonQ, Rigetti, national labs, universities. That’s a smart position.

The Jensen Huang Vision

Nvidia’s CEO Jensen Huang has made it clear: Nvidia plans to be at the center of every major computing paradigm shift. They dominated:

  • Gaming GPUs
  • Data center computing
  • AI training and inference
  • Autonomous vehicles

Quantum is next. And Nvidia’s strategy is to enable the entire ecosystem rather than building quantum computers themselves.

Should You Buy Nvidia for Quantum?

Here’s my honest take: Don’t buy Nvidia primarily for quantum exposure. The stock is expensive, and quantum is a tiny part of their business right now.

Buy Nvidia for:

  • ✅ AI infrastructure dominance
  • ✅ Data center growth
  • ✅ Best-in-class GPU technology
  • ✅ Get quantum upside as a bonus in 5-10 years

The concerns:

  • ⚠️ Already priced for perfection (P/E is sky-high)
  • ⚠️ Quantum revenue is negligible today
  • ⚠️ High volatility (great for options, terrible for weak hands)

My strategy: I trade Nvidia actively using options spreads. The premiums are juicy because of volatility. I sell cash-secured puts when it dips, wheel into shares, then sell covered calls. The quantum angle is just a long-term bonus if the stock trades sideways for years.

6. Amazon (NASDAQ: AMZN) – The Quantum Cloud Democratizer

Risk Tier: 🟢 Established Giant
Market Cap: ~T
Quantum Focus: Low (AWS Braket platform)
My Rating: ⭐⭐⭐⭐ Buy

Amazon isn’t trying to win the quantum hardware race. They’re building the marketplace where everyone else’s quantum computers are bought and sold. Classic Amazon strategy.

AWS Braket: The Quantum Marketplace

Amazon’s AWS Braket is brilliant in its simplicity: give customers access to multiple quantum computers from different vendors through one platform.

What Braket offers:

  • IonQ’s trapped-ion systems
  • Rigetti’s superconducting qubits
  • D-Wave’s quantum annealers
  • Quantum simulators for testing

A company can test quantum algorithms on all three types of hardware and choose what works best – without buying or maintaining any quantum computers themselves.

This is Amazon’s wheelhouse: logistics, marketplaces, and infrastructure. They’re not betting on one quantum technology. They’re betting on quantum computing as a category and positioning AWS as the go-to platform.

The .7M IonQ Bet

Amazon made a strategic investment of .7 million in IonQ – the largest known quantum investment by a major tech company. This signals confidence in trapped-ion technology and strengthens AWS’s quantum ecosystem.

Why does this matter? Amazon doesn’t throw money around randomly. When they invest, it’s strategic. The IonQ stake gives Amazon:

  • Early access to IonQ’s newest hardware
  • Influence in trapped-ion technology development
  • Credibility with enterprise quantum customers
  • A hedge if IonQ becomes the quantum leader

Real-World Use Cases

AWS is focused on making quantum accessible for practical business problems:

Logistics optimization: Faster delivery route calculations
Drug discovery: Molecular simulations for pharmaceuticals
Financial modeling: Risk analysis and portfolio optimization
Machine learning: Quantum-enhanced AI algorithms

AWS provides workshops, documentation, and support to help companies actually use quantum computing. Not just access it – use it.

The Investment Case

Why Amazon makes sense for quantum exposure:

  • ✅ Platform approach = wins regardless of quantum hardware winner
  • ✅ AWS is already 0B+ business with quantum as pure upside
  • ✅ Enterprise relationships make quantum adoption easier
  • ✅ Profitable business funds unlimited quantum investment
  • ✅ Strong execution track record in new markets

The concerns:

  • ⚠️ Quantum is tiny fraction of Amazon’s business
  • ⚠️ Stock expensive relative to e-commerce margins
  • ⚠️ Competition from Microsoft Azure and Google Cloud

My play: Amazon is a forever hold for me. AWS dominance + e-commerce + advertising = a business I want to own for decades. The quantum angle is just icing on the cake. I occasionally sell covered calls on a portion of my position when premiums spike.

Tier 2: Pure-Play Growth Stocks – High Risk, High Reward {#tier-2}

Now we’re getting spicy. These companies are 100% quantum plays. Higher risk, higher potential returns, and way more volatility.

Only allocate 20-30% of your quantum exposure here, and only if you can handle wild swings.

7. IonQ (NYSE: IONQ) – The Pure-Play Quantum Leader

Risk Tier: 🟡 Pure-Play Growth
Market Cap: ~B
Quantum Focus: 100% (trapped-ion quantum computing)
My Rating: ⭐⭐⭐⭐ Speculative Buy

IonQ is the most exciting pure-play quantum stock – and also the most dangerous. This is a company that could 10x or lose 70% depending on which way the quantum wind blows.

Why IonQ Has Massive Potential

IonQ went public via SPAC in 2021 and has become the face of pure-play quantum investing. Here’s why the market is excited:

Trapped-ion technology: IonQ uses a different approach than IBM or Google. Instead of superconducting circuits, they trap individual ions with electromagnetic fields. This tech has some advantages:

  • Higher qubit quality (more accurate calculations)
  • Better stability (qubits last longer)
  • Easier error correction

Cloud accessibility: IonQ’s quantum computers are available through AWS, Microsoft Azure, and Google Cloud. This means any company can access IonQ’s tech without direct contracts.

Real customers: IonQ has contracts with defense contractors, research institutions, and enterprise customers. These aren’t tire-kickers – they’re paying customers.

The Explosive Stock Performance

IonQ’s stock is up nearly 300% over the past year. That’s not a typo. This is what happens when:

  • Quantum hype accelerates
  • The company hits technical milestones
  • Retail and institutional money floods into pure-play quantum

But here’s the reality check: IonQ is losing money. They printed a .3 billion net loss through Q3 2024. That’s the cost of building a quantum computing company from scratch.

The Bull Case for IonQ

Why speculators love this stock:

  • ✅ Pure quantum exposure (no dilution from other businesses)
  • ✅ Trapped-ion tech potentially superior to superconducting qubits
  • ✅ Strong partnerships (AWS, Microsoft, Google)
  • ✅ .5 billion in cash = runway to fund operations
  • ✅ First-mover advantage in commercial quantum

Why this could 10x: If trapped-ion quantum becomes the dominant approach, IonQ could become the “TSMC of quantum computing” – the manufacturer everyone depends on. That’s a multi-hundred-billion-dollar opportunity.

The Bear Case for IonQ

Let’s be real about the risks:

Why this could crash:

  • ⚠️ Valuation is insane: P/S ratio of 303 as of November 2024. This stock is priced for absolute perfection.
  • ⚠️ Not profitable: Burning cash with no clear path to profitability in the near term
  • ⚠️ Technology risk: If superconducting qubits win, trapped-ion loses
  • ⚠️ Competition: IBM, Google, and Microsoft have deeper pockets
  • ⚠️ Hype cycle risk: This stock trades on momentum and sentiment, not fundamentals

My take: IonQ at current prices is a speculation, not an investment. If the stock hit + (some bulls are calling for this), you’d be paying for revenue growth that may never materialize.

How I’m Playing IonQ

I don’t hold shares at these valuations. Too expensive, too much downside risk.

My strategy: I trade IonQ using options:

  • Sell cash-secured puts when it pulls back 20-30%
  • Sell covered calls if I get assigned shares
  • Buy puts as a hedge when quantum sector gets too hot

IonQ is perfect for the options wheel strategy because premiums are fat (high IV), and I’m fine owning shares at lower prices.

Bottom line: Great company, insane valuation. Wait for a correction or trade it with options. Don’t fall in love with this stock at current prices.

8. Rigetti Computing (NASDAQ: RGTI) – The Underdog Quantum Play

Risk Tier: 🟡 Pure-Play Growth
Market Cap: <B
Quantum Focus: 100% (superconducting quantum computing)
My Rating: ⭐⭐⭐ High Risk

Rigetti is the scrappy underdog in quantum computing – smaller than IonQ, less hyped than D-Wave, but potentially explosive if they execute.

What Makes Rigetti Different

Rigetti builds superconducting quantum computers – the same general approach as IBM and Google. But they’re focused on hybrid quantum-classical systems that combine both types of computing in real-time.

Key technical achievements:

  • 9-qubit quantum processor shipped commercially
  • 36-qubit multi-chip system with industry-leading gate fidelity
  • 99.5% median two-qubit gate fidelity (this is excellent)
  • Quantum systems operating at millikelvin temperatures (colder than space)

The Technical Specs That Matter

Here’s the nerdy stuff that quantum investors care about:

T1 lifetime: 32 microseconds (how long qubits maintain their state)
T2 lifetime: 13 microseconds (how long quantum coherence lasts)
Single-qubit gate fidelity: 99.93% (accuracy of basic operations)
Two-qubit gate fidelity: 99.26% (accuracy of entangled operations)

Translation: Rigetti’s hardware performs at levels competitive with IBM and Google. For a small company, that’s impressive.

The Business Reality Check

Let’s talk numbers because they’re not pretty:

Q3 2024 Revenue: .95 million (down 18% year-over-year)
Operating losses: Significant and ongoing
Stock performance: Volatile as hell

Rigetti is burning cash to fund R&D, and revenue growth is anemic. This is a company in survival mode, racing to hit technical milestones before money runs out.

The 2025 roadmap: CEO Subodh Kulkarni says they’re targeting a 100+ qubit system with 99.5% gate fidelity by end of 2025. If they hit this, the stock could rip. If they miss, it could crater.

Should You Touch This Stock?

The bull case:

  • ✅ Competitive with IBM/Google on gate fidelity
  • ✅ Hybrid quantum-classical approach is differentiated
  • ✅ Small market cap = room to run if they execute
  • ✅ Partnerships with academic and government labs

The bear case:

  • ⚠️ Revenue declining year-over-year (red flag)
  • ⚠️ Competing against giants with 100x the resources
  • ⚠️ No clear path to profitability
  • ⚠️ Stock could go to zero if funding dries up

My take: Rigetti is a lottery ticket. If you want exposure, keep it under 3-5% of your quantum allocation. This is NOT a core holding.

How I’d play it: Wait for a technical milestone announcement, then buy short-dated call options for leverage. Sell within days if it pops. Don’t hold shares long-term unless you love pain.

9. D-Wave Systems (NYSE: QBTS) – The Quantum Annealing Specialist

Risk Tier: 🟡 Pure-Play Growth
Market Cap: <B
Quantum Focus: 100% (quantum annealing)
My Rating: ⭐⭐⭐ High Risk

D-Wave is the black sheep of quantum computing. They use a completely different technology (quantum annealing) than everyone else, which makes them either brilliant or obsolete depending on how this plays out.

What Is Quantum Annealing?

Most quantum companies build “gate-based” quantum computers (like IBM, Google, IonQ). These are general-purpose machines that can theoretically solve any problem.

D-Wave builds “quantum annealers” – specialized machines designed for optimization problems like:

  • Route optimization for logistics
  • Molecular modeling for drug discovery
  • Portfolio optimization for finance
  • Supply chain planning

Quantum annealing is narrower in scope but potentially more practical for specific business problems today.

The Business Trajectory

D-Wave went public during COVID (2020-2021) when SPACs were hot and valuations were inflated. Since then, it’s been a rough ride.

Recent financials:

  • Q2 2024 revenue: .1 million (up 42% year-over-year)
  • Bookings: .3 million (up 92% year-over-year)
  • Operating loss: .5 million (also up 42%)
  • Cash position: 8.8 million

The good news: Revenue and bookings are growing fast. The bad news: They’re burning cash faster than revenue is growing.

D-Wave is in a race against time. Can they get enough commercial traction before the money runs out?

Real-World Applications

D-Wave’s strategy is to get quantum into daily business operations now, not in 10 years.

Who’s using D-Wave:

  • Banks: Risk modeling and fraud detection
  • Automakers: Route planning and logistics optimization
  • Energy companies: Grid optimization

These aren’t lab experiments. D-Wave has paying customers solving real problems. That’s both their strength and their challenge – they need MORE customers, FASTER.

The Investment Case

Why D-Wave could work:

  • ✅ Quantum annealing might be faster path to commercialization
  • ✅ Strong bookings growth (92% is impressive)
  • ✅ Real customers in finance, automotive, energy
  • ✅ Enough cash to operate for a few more years

Why D-Wave could fail:

  • ⚠️ Quantum annealing is narrower than gate-based quantum
  • ⚠️ If gate-based quantum improves, annealing becomes obsolete
  • ⚠️ Losses growing as fast as revenue
  • ⚠️ Market cap already reflects optimistic expectations

My honest opinion: D-Wave is a high-risk bet on quantum annealing being the practical path forward. I’m skeptical because IBM, Google, and Microsoft are all betting on gate-based systems.

How I’d approach this: Small speculative position only. Maybe 2-3% of quantum allocation. Or trade the volatility with options when news hits.

Tier 3: Speculative Moonshots – Day Trade Territory {#tier-3}

These stocks are NOT investments. They’re speculative vehicles for traders who understand the risks. Allocate 5-10% max.

10. Quantum Computing Inc. (NASDAQ: QUBT) – The Volatile Speculator’s Dream

Risk Tier: 🔴 Speculative Moonshot
Market Cap: ~B
Quantum Focus: 100% (quantum software and hybrid systems)
My Rating: ⭐⭐ Day Trade Only

QUBT is the stock that makes quantum investors either rich or broke. This is pure speculation dressed up as innovation.

What QUBT Actually Does

Quantum Computing Inc. develops quantum software and hybrid quantum-classical systems. Their Qatalyst platform lets companies run quantum-inspired algorithms on today’s hardware.

The pitch: You don’t need a full quantum computer to benefit from quantum techniques. QUBT’s software can solve optimization problems using quantum-inspired algorithms on classical hardware.

The reality: This is clever, but it’s also competing with IBM, Microsoft, and Google who have better software AND better hardware.

The Numbers Are Brutal

Let’s be real about what you’re buying:

Stock price: .41 (as of recent data)
52-week range: .26 – .15
Market cap: .13 billion
P/E ratio: -17.56 (negative because they’re losing money)
Recent quarter net loss: .5 million

This stock has gone up 3,000% in the past year. Read that again. This isn’t a company – it’s a momentum play.

The 0M Private Placement Red Flag

QUBT recently raised 0 million through private placement. While fresh capital sounds good, here’s the problem:

Share dilution: Existing shareholders get diluted heavily
Cash burn: .5M quarterly loss means this money won’t last long
Desperation signal: Companies don’t raise this much unless they’re in trouble

Who Should Buy This Stock?

Buy QUBT if:

  • You’re a day trader who can exit fast
  • You understand technical analysis and momentum trading
  • You’re using stop losses religiously
  • You can afford to lose 100% of your investment

Avoid QUBT if:

  • You’re looking for a long-term investment
  • You can’t handle 30-50% swings in a week
  • You’re investing retirement money
  • You don’t understand what this company actually does

My Brutally Honest Take

QUBT is a meme stock with quantum branding. The 3,000% gain attracted retail speculators, not fundamental investors.

I would never hold this overnight. If you trade it, use tight stops and take profits quickly. This stock can drop 40% in days just as fast as it rallied.

My strategy: I don’t touch QUBT. There are better ways to play quantum computing. But if you’re a trader who loves volatility, this is your playground.

How to Actually Invest in Quantum Computing Stocks {investment-strategy}

Okay, you’ve seen the 10 stocks. Now let’s talk about how to build a quantum portfolio that won’t blow up your account.

Portfolio Allocation by Risk Tolerance

Conservative Investor (Low Risk Tolerance)

  • 80% Tier 1 stocks (IBM, Microsoft, Google, Amazon, Nvidia, Honeywell)
  • 15% Tier 2 stocks (IonQ only, and only on pullbacks)
  • 5% Cash reserve for opportunities
  • 0% Tier 3 stocks

Moderate Investor (Medium Risk Tolerance)

  • 60% Tier 1 stocks
  • 30% Tier 2 stocks (IonQ, Rigetti, D-Wave)
  • 10% Tier 3 or tactical trades

Aggressive Investor (High Risk Tolerance)

  • 50% Tier 1 stocks (for stability)
  • 35% Tier 2 stocks (concentrated positions)
  • 15% Tier 3 stocks and options trades

My Personal Quantum Portfolio Structure

Here’s how I’m actually allocated (as of November 2025):

Core Holdings (70%):

  • IBM – 20%
  • Microsoft – 25%
  • Google – 15%
  • Amazon – 10%

Growth Holdings (25%):

  • IonQ – 15% (waiting for pullback to add more)
  • Rigetti – 5% (small lottery ticket)
  • D-Wave – 5% (small lottery ticket)

Trading Capital (5%):

  • Options trades on Nvidia, IonQ
  • Cash for opportunistic entries

I do not hold QUBT or any Tier 3 stocks as investments. I only trade them with options for leverage.

Options Strategies for Quantum Stocks

This is where quantum stocks get interesting for income and leverage.

Strategy 1: The Wheel (My Favorite)

Perfect for: IonQ, Rigetti, IBM

  1. Sell cash-secured puts 20-30% below current price
  2. If assigned, own the shares
  3. Sell covered calls 10-15% above your cost basis
  4. Repeat until called away

Example: IonQ at

  • Sell put, collect 0 premium
  • If assigned at , sell call for 0
  • Rinse and repeat

Strategy 2: Covered Calls on Core Holdings

Perfect for: IBM, Microsoft, Google, Amazon

  1. Own 100+ shares
  2. Sell 30-45 DTE calls 10-20% OTM
  3. Collect premium monthly
  4. If called away, buy back on pullback

This generates 1-3% monthly income while holding long-term positions.

Strategy 3: Directional Plays on News

Perfect for: Rigetti, D-Wave (when they announce milestones)

  1. Wait for pullback before major milestone
  2. Buy short-dated call options (1-3 weeks)
  3. Sell 50% if it pops 50%+
  4. Let runner ride with stop loss

High risk, high reward. Only use 1-2% of portfolio per trade.

Strategy 4: Hedging with Puts

Perfect for: IonQ, when valuations get frothy

  1. When IonQ or sector is up 50%+ in short time
  2. Buy protective puts 20% OTM
  3. Costs 1-2% of position value
  4. Protects against 30-50% crashes

The ETF Alternative: Defiance Quantum ETF (QTUM)

Don’t want to pick individual stocks? There’s an ETF for that.

Defiance Quantum ETF (QTUM) holds:

  • IonQ
  • IBM
  • Nvidia
  • Google
  • Microsoft
  • Other quantum-adjacent companies

Pros:

  • ✅ Instant diversification
  • ✅ No need to rebalance
  • ✅ Professional management

Cons:

  • ⚠️ Expense ratio (around 0.40%)
  • ⚠️ Includes companies barely in quantum
  • ⚠️ You don’t control allocation

My take: QTUM is fine for hands-off investors, but I prefer building my own portfolio for better control and lower fees.

When to Buy Quantum Stocks

Best times to enter:

  1. After 20-30% pullbacks in Tier 2 stocks (IonQ, Rigetti)
  2. On broad market corrections when Tier 1 stocks get dragged down
  3. Before major conferences (IBM Quantum Summit, Q2B Conference)
  4. When quantum news is quiet (less hype = better prices)

Worst times to enter:

  1. After 50%+ vertical moves (chasing momentum)
  2. When Cramer or CNBC is hyping quantum (top signal)
  3. Right before earnings for unprofitable companies
  4. When valuations are at historic highs

Red Flags to Watch For

Sell signals:

  1. Quantum company raises cash through dilutive offerings
  2. Key executives leaving suddenly
  3. Quarterly revenue declining for 2+ quarters
  4. Competitors achieving major breakthroughs
  5. Stock up 100%+ with no fundamental change

Green flags to accumulate:

  1. Technical milestones hit (qubit improvements, error correction)
  2. New partnerships with Fortune 500 companies
  3. Government contracts announced
  4. Insider buying by executives
  5. Stock down 30%+ on no news (opportunity)

The Bottom Line: My Quantum Investing Rules

After months of research and trading these stocks, here are my core principles:

Rule #1: Quantum Is a 10-Year Play

Don’t expect quantum computing to change the world in 2025. This is a 2030-2035 story. If you can’t hold for years, don’t invest – trade instead.

Rule #2: Tier 1 Stocks Are Your Foundation

70% of your quantum exposure should be in IBM, Microsoft, Google, Amazon, Nvidia, or Honeywell. These won’t 10x overnight, but they also won’t go to zero.

Rule #3: Pure-Plays Are Speculative

IonQ, Rigetti, D-Wave, QUBT – these are NOT safe investments. Treat them as growth speculation or trading vehicles. Use options to limit downside.

Rule #4: Valuation Still Matters

IonQ trading at 303x sales is insane. QUBT up 3,000% is insane. Don’t buy stocks just because they’re “quantum.” Pay attention to valuations.

Rule #5: Technology Risk Is Real

We don’t know which quantum approach will win:

  • Superconducting qubits (IBM, Google, Rigetti)
  • Trapped-ion (IonQ, Honeywell)
  • Topological (Microsoft)
  • Quantum annealing (D-Wave)

Diversify across approaches. Don’t bet everything on one technology.

Rule #6: Use Options for Leverage and Income

Quantum stocks have high implied volatility = fat premiums. Sell puts, sell calls, run the wheel. Generate income while you wait for the sector to mature.

Rule #7: Stay Informed

Quantum moves fast. Follow:

  • Company earnings reports
  • Technical breakthroughs
  • Partnership announcements
  • Government funding initiatives

Subscribe to quantum computing newsletters, follow researchers on X/Twitter, and stay ahead of the crowd.

Conclusion: The Quantum Opportunity Is Real (But So Are the Risks)

Quantum computing is coming. The question isn’t if, it’s when and who wins.

The stocks I’ve outlined give you exposure across the spectrum:

Safe plays: IBM, Microsoft, Google, Amazon – own these for the long haul
Growth plays: IonQ, Rigetti, D-Wave – trade these with discipline
Speculation: QUBT – only for experienced traders

My portfolio is 70% Tier 1, 25% Tier 2, and 5% trading capital. That balance lets me participate in quantum upside while sleeping well at night.

Here’s what I want you to take away:

  1. Quantum is a real technological revolution, not just hype
  2. Most quantum stocks are overvalued at current prices
  3. Diversification across technologies and risk tiers is critical
  4. Options are your friend for income and leverage
  5. This is a marathon, not a sprint

Don’t FOMO into quantum stocks after 100% moves. Be patient. Wait for pullbacks. Build positions over time. And always, always use position sizing and risk management.

The quantum revolution will mint millionaires – but it will also wipe out speculators who chase hype without understanding what they own.

Which side will you be on?

Frequently Asked Questions

What are quantum computing stocks?

Quantum computing stocks are shares of companies building quantum computers, quantum software, or quantum infrastructure. These companies are at the forefront of a computing revolution that could make today’s supercomputers obsolete.

Quantum stocks fall into three categories: established tech giants with quantum divisions (IBM, Microsoft, Google), pure-play quantum companies (IonQ, Rigetti, D-Wave), and speculative micro-caps (Quantum Computing Inc.).

Why should I invest in quantum computing stocks?

Quantum computing could become a billion market by 2035. Early investors in transformational technologies (like cloud computing, AI, or the internet) have historically made significant returns.

However, quantum is still early-stage. Most companies aren’t profitable yet. If you invest, you’re betting on quantum becoming mainstream within 10 years. That’s a big “if” that comes with significant risk.

Which quantum stock is the best investment?

For long-term investors: IBM offers the best risk/reward. They have 30 years of quantum R&D, real revenue, and a profitable core business. You get quantum upside without risking everything.

For aggressive growth: IonQ has the most potential but also the highest risk. The stock has 10x potential if trapped-ion quantum becomes dominant – but it could also crash 70% if they don’t execute.

For income generation: Microsoft or IBM are best for selling covered calls because they’re less volatile than pure-play quantum stocks.

Are quantum computing stocks overvalued?

Yes, most pure-play quantum stocks are significantly overvalued by traditional metrics.

IonQ trades at 303x sales. QUBT is up 3,000% in a year. These valuations price in decades of perfect execution. Any setback could trigger 40-50% drops.

Tier 1 stocks (IBM, Microsoft, Google, Amazon) are more reasonably valued because quantum is only one part of their business.

Can I lose all my money investing in quantum stocks?

Absolutely. Pure-play quantum companies like Rigetti, D-Wave, and Quantum Computing Inc. could go to zero if:

  • They run out of funding
  • A competitor achieves a breakthrough that makes their tech obsolete
  • Quantum computing takes longer to commercialize than expected
  • The quantum hype bubble bursts

This is why I recommend keeping 70% of quantum exposure in Tier 1 stocks that won’t go to zero even if quantum fails.

How do I know which quantum technology will win?

You don’t. Nobody does.

There are four main approaches competing:

  1. Superconducting qubits (IBM, Google, Rigetti)
  2. Trapped-ion (IonQ, Honeywell/Quantinuum)
  3. Topological qubits (Microsoft)
  4. Quantum annealing (D-Wave)

Each has advantages and disadvantages. The smart strategy is to diversify across multiple technologies rather than betting everything on one approach.

What’s the difference between investing and trading quantum stocks?

Investing = Buy Tier 1 stocks (IBM, Microsoft, Google) and hold for 5-10 years. Weather volatility. Collect dividends or sell covered calls for income.

Trading = Buy Tier 2/3 stocks (IonQ, Rigetti, QUBT) using technical analysis and momentum. Use options for leverage. Take profits quickly. Don’t fall in love with positions.

Most retail investors should focus on investing, not trading. Trading quantum stocks requires experience, discipline, and the ability to cut losses quickly.

Should I buy a quantum computing ETF instead of individual stocks?

The Defiance Quantum ETF (QTUM) offers diversification without picking individual stocks. It holds IonQ, IBM, Nvidia, Google, Microsoft, and other quantum-adjacent companies.

Pros: Instant diversification, professional management, no rebalancing needed

Cons: Higher expense ratio (0.40%), includes companies barely involved in quantum, less control over allocation

My take: QTUM is fine for hands-off investors, but I prefer building my own portfolio for better control and lower fees.

What sectors will quantum computing disrupt?

Quantum computing will impact:

  • Finance: Risk modeling, portfolio optimization, fraud detection
  • Pharmaceuticals: Drug discovery, molecular simulation
  • Cybersecurity: Breaking encryption, quantum-resistant security
  • Logistics: Route optimization, supply chain management
  • AI/Machine Learning: Faster training, better optimization algorithms
  • Materials science: Discovering new materials and chemicals
  • Energy: Grid optimization, battery development

Companies in these sectors will either adopt quantum computing or fall behind competitors.

How much of my portfolio should be in quantum stocks?

Conservative investors: 3-5% max (Tier 1 stocks only)
Moderate investors: 5-10% (mostly Tier 1, some Tier 2)
Aggressive investors: 10-20% (diversified across all tiers)

Never allocate more than 20% of your portfolio to quantum computing. This is speculative technology with binary outcomes. Diversification protects you if quantum takes longer than expected.

When will quantum computers become mainstream?

Realistic timeline:

  • 2025-2027: Continued R&D, small commercial applications
  • 2027-2030: First practical advantages over classical computers for specific problems
  • 2030-2035: Broader commercial adoption, quantum becoming standard for certain applications
  • 2035+: Widespread quantum computing integrated into cloud services

Most experts agree practical, commercial quantum computing is still 5-10 years away. Don’t expect quantum to change the world in 2025.

What should I do if quantum stocks crash 30-40%?

For Tier 1 stocks (IBM, Microsoft, Google): Buy more. These companies won’t go bankrupt. Use crashes to accumulate at lower prices.

For Tier 2 stocks (IonQ, Rigetti, D-Wave): Depends on why they crashed. If it’s sector-wide selling (no news), consider buying. If it’s company-specific bad news (revenue miss, executive departure), be cautious.

For Tier 3 stocks (QUBT): Cut losses immediately. Don’t try to catch falling knives on speculative stocks.

This is why position sizing matters. If you only have 5% in quantum stocks, a 40% crash only hurts 2% of your portfolio.

Can I use options to invest in quantum stocks?

Absolutely. Options are actually ideal for quantum stocks because:

  1. High implied volatility = expensive premiums you can sell
  2. Volatility lets you enter positions at lower prices via cash-secured puts
  3. Leverage gives you exposure without tying up tons of capital

My favorite strategies:

  • Sell cash-secured puts on IonQ and IBM
  • Sell covered calls on shares I own
  • Run the wheel strategy for consistent income
  • Buy protective puts when sector gets too hot

Options require knowledge and discipline. Don’t trade options on quantum stocks unless you understand the Greeks and risk management.

Are quantum computing stocks a bubble?

Some are definitely in bubble territory. When stocks go up 300-3,000% in a year with no revenue growth, that’s speculation, not investing.

Bubble characteristics we’re seeing:

  • IonQ at 303x sales
  • QUBT up 3,000% on hype alone
  • Retail investors buying because “quantum is the future”
  • Companies raising capital through dilution at inflated prices

However: The underlying technology is real. IBM, Google, and Microsoft are making genuine breakthroughs. Quantum computing WILL disrupt industries.

The bubble is in valuations, not the technology itself. Be cautious, use position sizing, and don’t buy at all-time highs.

Ready to Build Your Quantum Portfolio?

Quantum computing is the next frontier. The companies that dominate this space will mint fortunes for early investors.

But remember:

  • Diversify across risk tiers
  • Use proper position sizing
  • Stay informed on technological developments
  • Don’t chase momentum
  • Think 10 years, not 10 days

Start with IBM and Microsoft. Add IonQ on pullbacks. Trade the volatility with options. And most importantly – don’t bet money you can’t afford to lose on speculative quantum plays.

Japheth

About The Author

Japheth is the founder of Bullishfow.com, where he shares insights on investing.

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