Publicly Traded Quantum — 2026-07-13

Published:

Generated: 2026-07-13 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$38.88-9.29%
RGTIRigetti ComputingBerkeley, CA, USASuperconducting quantum hardware$15.36-7.13%
QBTSD-Wave QuantumBurnaby, BC, CanadaQuantum annealing$18.66-7.12%
QUBTQuantum Computing Inc. (QCI)Hoboken, NJ, USAPhotonic / entropy quantum systems$8.00-7.62%
ARQQArqit QuantumLondon, UKSymmetric quantum-safe encryption$18.02-5.56%
QSIQuantum-SiBranford, CT, USAQuantum-enabled protein sequencing$0.87-1.55%
LAESSEALSQGeneva, SwitzerlandPost-quantum secure semiconductors$2.71-3.21%

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$149.02-3.52%

Leaderboard (1-day move)

**Top gainers**
  1. Quantum-Si (QSI) — -1.55%
  2. SEALSQ (LAES) — -3.21%
  3. Defiance Quantum ETF (QTUM) — -3.52%
  4. Arqit Quantum (ARQQ) — -5.56%
  5. D-Wave Quantum (QBTS) — -7.12%
**Top decliners**
  1. IonQ (IONQ) — -9.29%
  2. Quantum Computing Inc. (QCI) (QUBT) — -7.62%
  3. Rigetti Computing (RGTI) — -7.13%
  4. D-Wave Quantum (QBTS) — -7.12%
  5. Arqit Quantum (ARQQ) — -5.56%