Publicly Traded Quantum — 2026-07-12

Published:

Generated: 2026-07-12 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$42.86-4.27%
RGTIRigetti ComputingBerkeley, CA, USASuperconducting quantum hardware$16.54-2.65%
QBTSD-Wave QuantumBurnaby, BC, CanadaQuantum annealing$20.09-5.06%
QUBTQuantum Computing Inc. (QCI)Hoboken, NJ, USAPhotonic / entropy quantum systems$8.66-5.36%
ARQQArqit QuantumLondon, UKSymmetric quantum-safe encryption$19.08-6.79%
QSIQuantum-SiBranford, CT, USAQuantum-enabled protein sequencing$0.88-8.21%
LAESSEALSQGeneva, SwitzerlandPost-quantum secure semiconductors$2.80-2.44%

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$154.46-0.71%

Leaderboard (1-day move)

**Top gainers**
  1. Defiance Quantum ETF (QTUM) — -0.71%
  2. SEALSQ (LAES) — -2.44%
  3. Rigetti Computing (RGTI) — -2.65%
  4. IonQ (IONQ) — -4.27%
  5. D-Wave Quantum (QBTS) — -5.06%
**Top decliners**
  1. Quantum-Si (QSI) — -8.21%
  2. Arqit Quantum (ARQQ) — -6.79%
  3. Quantum Computing Inc. (QCI) (QUBT) — -5.36%
  4. D-Wave Quantum (QBTS) — -5.06%
  5. IonQ (IONQ) — -4.27%