Publicly Traded Quantum — 2026-07-09

Published:

Generated: 2026-07-09 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$44.77-0.69%
RGTIRigetti ComputingBerkeley, CA, USASuperconducting quantum hardware$16.99+0.41%
QBTSD-Wave QuantumBurnaby, BC, CanadaQuantum annealing$21.16+2.52%
QUBTQuantum Computing Inc. (QCI)Hoboken, NJ, USAPhotonic / entropy quantum systems$9.15+4.57%
ARQQArqit QuantumLondon, UKSymmetric quantum-safe encryption$20.47+2.09%
QSIQuantum-SiBranford, CT, USAQuantum-enabled protein sequencing$0.96+5.41%
LAESSEALSQGeneva, SwitzerlandPost-quantum secure semiconductors$2.87+1.06%

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$155.57+2.03%

Leaderboard (1-day move)

**Top gainers**
  1. Quantum-Si (QSI) — +5.41%
  2. Quantum Computing Inc. (QCI) (QUBT) — +4.57%
  3. D-Wave Quantum (QBTS) — +2.52%
  4. Arqit Quantum (ARQQ) — +2.09%
  5. Defiance Quantum ETF (QTUM) — +2.03%
**Top decliners**
  1. IonQ (IONQ) — -0.69%
  2. Rigetti Computing (RGTI) — +0.41%
  3. SEALSQ (LAES) — +1.06%
  4. Defiance Quantum ETF (QTUM) — +2.03%
  5. Arqit Quantum (ARQQ) — +2.09%