Publicly Traded Quantum — 2026-07-08

Published:

Generated: 2026-07-08 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$45.08-0.62%
RGTIRigetti ComputingBerkeley, CA, USASuperconducting quantum hardware$16.92+2.24%
QBTSD-Wave QuantumBurnaby, BC, CanadaQuantum annealing$20.64-1.99%
QUBTQuantum Computing Inc. (QCI)Hoboken, NJ, USAPhotonic / entropy quantum systems$8.75+0.69%
ARQQArqit QuantumLondon, UKSymmetric quantum-safe encryption$20.05+1.06%
QSIQuantum-SiBranford, CT, USAQuantum-enabled protein sequencing$0.91-0.79%
LAESSEALSQGeneva, SwitzerlandPost-quantum secure semiconductors$2.84+1.43%

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$152.47+0.68%

Leaderboard (1-day move)

**Top gainers**
  1. Rigetti Computing (RGTI) — +2.24%
  2. SEALSQ (LAES) — +1.43%
  3. Arqit Quantum (ARQQ) — +1.06%
  4. Quantum Computing Inc. (QCI) (QUBT) — +0.69%
  5. Defiance Quantum ETF (QTUM) — +0.68%
**Top decliners**
  1. D-Wave Quantum (QBTS) — -1.99%
  2. Quantum-Si (QSI) — -0.79%
  3. IonQ (IONQ) — -0.62%
  4. Defiance Quantum ETF (QTUM) — +0.68%
  5. Quantum Computing Inc. (QCI) (QUBT) — +0.69%