Publicly Traded Quantum — 2026-07-07

Published:

Generated: 2026-07-07 UTC. Prices are last available daily close from Yahoo Finance and are informational only — not investment advice.

Companies

Quantum-primary publicly traded companies (quantum hardware, software, or quantum-enabled products as the core business). Diversified mega-caps with quantum divisions (Google, IBM, Microsoft, Amazon, etc.) are intentionally excluded.

TickerCompanyHQFocusLast closeΔ vs prev close30d
IONQIonQCollege Park, MD, USATrapped-ion quantum computers$45.36-7.18%
RGTIRigetti ComputingBerkeley, CA, USASuperconducting quantum hardware$16.55-7.85%
QBTSD-Wave QuantumBurnaby, BC, CanadaQuantum annealing$21.06-6.65%
QUBTQuantum Computing Inc. (QCI)Hoboken, NJ, USAPhotonic / entropy quantum systems$8.69-7.26%
ARQQArqit QuantumLondon, UKSymmetric quantum-safe encryption$19.84-10.35%
QSIQuantum-SiBranford, CT, USAQuantum-enabled protein sequencing$0.92-3.41%
LAESSEALSQGeneva, SwitzerlandPost-quantum secure semiconductors$2.80-6.67%

ETFs

Broad-basket exchange-traded funds that track quantum-computing and adjacent quantum-tech holdings.

TickerFundListingFocusLast closeΔ vs prev close30d
QTUMDefiance Quantum ETFUSABroad quantum-computing ETF$151.44-3.50%

Leaderboard (1-day move)

**Top gainers**
  1. Quantum-Si (QSI) — -3.41%
  2. Defiance Quantum ETF (QTUM) — -3.50%
  3. D-Wave Quantum (QBTS) — -6.65%
  4. SEALSQ (LAES) — -6.67%
  5. IonQ (IONQ) — -7.18%
**Top decliners**
  1. Arqit Quantum (ARQQ) — -10.35%
  2. Rigetti Computing (RGTI) — -7.85%
  3. Quantum Computing Inc. (QCI) (QUBT) — -7.26%
  4. IonQ (IONQ) — -7.18%
  5. SEALSQ (LAES) — -6.67%