In a world where AI is the buzzword of the moment, another futuristic technology is quietly inching closer to the spotlight: quantum computing.
Once the stuff of science fiction, quantum computing is now a very real — albeit still experimental — industry that promises to revolutionise everything from drug discovery to financial modelling to climate simulations. But for everyday investors, the big question is:
Should you put your money into quantum computing? Or is it all still too early — and too risky?
Let’s take a look.
What Is Quantum Computing, Anyway?
At its core, quantum computing is a completely new way of processing information. Instead of using traditional bits (which are either 0 or 1), quantum computers use qubits, which can be both 0 and 1 at the same time (thanks to something called superposition).
Without going full “Physics GCSE mode,” this means quantum computers can theoretically perform complex calculations millions of times faster than today’s best supercomputers. The implications for data-heavy industries — like cybersecurity, pharmaceuticals, logistics, and finance — are huge.
But… we’re not there yet.
Early Days: High Hopes, Low Revenue
Right now, quantum computing is still largely in the research and development phase. Most quantum machines are expensive, sensitive, and impractical for everyday use.
That hasn’t stopped investors — and governments — from pouring billions into the field. The global race is on. But it does mean that, from an investment point of view, returns may take years (if not decades) to materialise.
So, who are the major players — and are they investable?
Public Companies in Quantum Computing
Here are some of the key names in the publicly traded quantum space:
1. Rigetti Computing (NASDAQ: RGTI)
A pure-play quantum computing company based in California, Rigetti builds both quantum hardware and software. It went public via a SPAC in 2022 and has attracted attention as one of the few “quantum-only” stocks.
Pros:
- Pure exposure to quantum tech
- Proprietary tech stack (hardware + software)
Cons:
- Not yet profitable
- Shares have been volatile
2. IBM (NYSE: IBM)
Big Blue has been working on quantum computing for years and has developed its IBM Quantum division. While quantum is only a small part of its overall business, IBM is arguably one of the leaders in making quantum tech more accessible via the cloud.
Pros:
- Long-term track record
- Diversified business
- Actual working quantum systems
Cons:
- Quantum is still a very small piece of the pie
- Slower-moving, legacy tech business
3. Alphabet (NASDAQ: GOOGL)
Through Google Quantum AI, Alphabet is another key player pushing the boundaries. While you can’t invest in its quantum arm specifically, owning Alphabet shares gives you a slice of its cutting-edge projects — quantum included.
4. IonQ (NYSE: IONQ)
Another pure-play quantum company, IonQ uses a different technology called trapped-ion computing. It’s received backing from the likes of Amazon and Microsoft and has been building partnerships with cloud platforms.
5. Honeywell (NASDAQ: HON) via Quantinuum
Honeywell spun out its quantum arm into a joint venture called Quantinuum, which may go public separately in future. Right now, Honeywell gives indirect exposure.
The Risks
Let’s be clear: investing in quantum computing today is not for the faint-hearted.
- High R&D burn: Most pure-play firms are not profitable and won’t be for some time.
- Tech uncertainty: Multiple architectures are being tested (superconducting, trapped ions, photonics). We don’t know which will win.
- Long time horizon: Real-world commercial applications may be 5–15 years away.
- Hype risk: Like with AI and crypto, there’s always a risk of a bubble if expectations outrun delivery.
So, Should You Invest?
Here’s a balanced view:
Yes, if…
- You’re comfortable with high-risk, high-reward bets
- You have a long investment horizon (10+ years)
- You’re building a diversified tech portfolio and want exposure to future innovation
- You’re investing small amounts with the potential to scale
No, if…
- You need income or short-term returns
- You don’t understand the underlying tech (and don’t want to learn)
- You’re already heavily exposed to speculative tech
Final Thought
Quantum computing may well be the next frontier of computing, offering unimaginable power and potential. But like the early internet or electric cars in the 1990s, it’s still in its awkward teenage years.
If you choose to invest, treat it like venture capital: speculative, exciting, but not your core holding.
Dip a toe, not your pension. And keep an eye on who’s building — not just who’s hyping.*
Tony Byrne, Managing Director
If you want to learn more about this topic, please find the link here.
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*Risk warnings
The value of investments can fall as well as rise. You may not get back what you invest. The information contained within this article is for guidance only and does not constitute advice which should be sought before taking any action or inaction. All information is based on our current understanding of taxation, legislation, regulations and case law in the current tax year. Any levels and bases of relief from taxation are subject to change. Tax treatment is based on individual circumstances and may be subject to change in the future. This blog is based on my own observations and opinions.
