# Many Worlds

> Quantum computing for investors in public and private markets: news, company profiles, plain explainers and a market-cap-weighted index of listed quantum stocks. Published by Many Worlds Capital. Every piece has a plain markdown copy at its page address plus ".md".

Each piece states its publish date. The full text of every piece is in https://news.manyworlds.vc/llms-full.txt.

## Reference

- [MWC Quantum Index](https://news.manyworlds.vc/mwc-index/): a market-cap-weighted index of listed pure-play quantum stocks, with live level and constituents.
- [Methodology](https://news.manyworlds.vc/methodology/): how the index is built.
- [Index history](https://news.manyworlds.vc/index/history.json): daily closes as JSON.
- [All pieces, full text](https://news.manyworlds.vc/llms-full.txt)
- [JSON Feed](https://news.manyworlds.vc/feed.json), [RSS](https://news.manyworlds.vc/rss.xml), [Sitemap](https://news.manyworlds.vc/sitemap.xml)

## News

What happened in quantum computing and what it means for investors.

- [Rigetti's $20 million 2026 outlook hinges on one customer acceptance](https://news.manyworlds.vc/news/rigetti-q3-2026-results.md): 2026-11-11. Third-quarter revenue was $1.4 million after about $9.5 million in the first half. The U.S. Commerce Department now holds about 2.3% of the shares.

## Companies

One page per company: what it builds, how it is funded or listed, and what to watch.

- [IonQ: the trapped-ion quantum company that bought its own chip foundry](https://news.manyworlds.vc/companies/ionq.md): 2026-11-11. IonQ sells trapped-ion quantum computers. It expects 2026 revenue of $505 million to $515 million, against $130.0 million in 2025.
- [PsiQuantum: the photonic company going straight for a million-qubit machine](https://news.manyworlds.vc/companies/psiquantum.md): 2026-11-11. Private photonic quantum computer maker PsiQuantum was valued at $7 billion in its September 2025 Series E. Australia pledged A$940 million in April 2024.
- [Quantinuum: the trapped-ion quantum computer maker Honeywell helped build](https://news.manyworlds.vc/companies/quantinuum.md): 2026-11-11. Quantinuum 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.
- [Rigetti Computing: the superconducting chip maker with its own factory](https://news.manyworlds.vc/companies/rigetti.md): 2026-11-11. Rigetti 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.

## Learn

Plain explanations of the science and the terms, written for investors.

- [What is a qubit?](https://news.manyworlds.vc/learn/qubit.md): 2026-11-11. 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?](https://news.manyworlds.vc/learn/superposition.md): 2026-11-11. 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.

## Notice

Many Worlds Capital invests in quantum companies and may hold positions in companies mentioned here. This is information, not investment advice. Prices can be delayed.