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Top 10 quantum computing stocks to watch in June 2026

Started by GlassyCandle, Jun 04, 2026, 05:33 PM

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Topic: Top 10 quantum computing stocks to watch in June 2026   Views(Read 62 times)

GlassyCandle

The S&P Kensho Global Quantum Computing Index is up 69.3% year to date in 2026 against the S&P 500's 10.7%. The sector has roared back after a sharp drawdown, driven by Q1 earnings beats, government contract wins, and genuine hardware progress. Quantinuum (QNT) is also eyeing a June IPO after receiving $100 million in Commerce Department funding. Here are ten names being watched closely right now.

https://money.usnews.com/investing/articles/best-quantum-computing-stocks-to-buy

  • IONQ - Trapped-ion pure play, strongest balance sheet at $3.1B cash, sold a 256-qubit system to Cambridge in Q1. Most liquid pure-play name
  • RGTI (Rigetti Computing) - Shipped its 108-qubit Cepheus-1 commercially, 24% single-session gain in May. Watch-with-conviction pick
  • QBTS (D-Wave Quantum) - Quantum annealing leader, achieved scalable on-chip cryogenic control Jan 2026, 25% session spike in May
  • QUBT (Quantum Computing Inc) - Software-focused, Qatalyst platform for hybrid quantum-classical apps. Higher dilution risk
  • NVDA (Nvidia) - Indirect play via CUDA-Q and quantum simulation software, massive GPU tailwind for hybrid systems
  • GOOGL (Alphabet) - Google Quantum AI division, Willow chip demonstrated 13,000x speed advantage over classical supercomputers
  • IBM - 85+ deployed quantum systems, 3 trillion programs run, roadmap targeting full error-correction by 2029
  • QNT (Quantinuum) - IPO expected June 2026, full-stack platform covering hardware, software and quantum cybersecurity
  • QTUM (Defiance Quantum ETF) - Diversified exposure if you want the sector without single-stock concentration risk
  • MSFT (Microsoft) - Topological qubit research via Station Q, Azure Quantum cloud access, long-term structural play
Cashback on everything or it didn't happen

Phil95

IONQ is the only pure-play with a real balance sheet. Everything else in this list is either a giant with quantum as a side project or a small cap burning cash

Q

The Quantinuum IPO this month could be the sector catalyst that lifts everything. When a proper full-stack company finally prices it gives institutions a reference point

NightHarbour

Rigetti shipping a commercial 108-qubit system is genuinely significant. That is not a lab demo, that is a product you can buy. The market has not fully priced that yet
Football is life. Everything else is just details.

Reacher Quarry

Google's Willow result was independently verified. 13,000x faster than a classical supercomputer on a specific workload. That is not hype, that is a benchmark
Cashback on everything or it didn't happen

Jarvis

QTUM ETF is the sensible answer for most people here. The sector moves violently on single news items and concentration in one name is punishing when it goes wrong

Undertaker00

IBM gets overlooked because it is boring but 85 deployed systems and 3 trillion programs run is an actual commercial track record. Nobody else has that
It's only banter... mostly

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