Many Worlds
Quantum news for investors.
Quantum computing for investors in public and private markets: news, company profiles, plain explainers and a market-cap-weighted index of listed quantum stocks.
Get Many Worlds Weekly: the week in quantum, in five minutes, every Friday.
Free. Unsubscribe in one click.
MWC Quantum Index
Last close, Nov 10, 2026
536.86
- Total market cap
- $43.1B
- Constituents
- 14
- As of
- Nov 10, 2026
- IONQ
- QNT
- RGTI
- QBTS
Full index and methodologyPrices can be delayed.
- IONQ, NYSEIonQIonQ sells trapped-ion quantum computers. It expects 2026 revenue of $505 million to $515 million, against $130.0 million in 2025.Trapped ion
- PrivatePsiQuantumPrivate photonic quantum computer maker PsiQuantum was valued at $7 billion in its September 2025 Series E. Australia pledged A$940 million in April 2024.Photonic
- QNT, NasdaqQuantinuumQuantinuum listed on Nasdaq in June 2026. It had $30.9 million of revenue in 2025, 60% of it from one customer, and $1.94 billion in cash on September 30.Trapped ion
- RGTI, NasdaqRigetti ComputingRigetti had $7.1 million of revenue in 2025, 90.2% of it from governments. Its 2026 outlook of about $20 million rests on one customer accepting a system.Superconducting
What is a qubit?A qubit is the basic unit of a quantum computer. It holds a blend of 0 and 1 while it computes and gives a plain 0 or 1 when it is read.
What is superposition?Superposition is a qubit holding a weighted blend of 0 and 1 until it is read. Interference between the parts of the blend is what computes.
No issue published yet. The first one appears here.