Isabelle Bousquette's piece on B10 of this weekend's Wall Street Journal — "Quantum Firms Race to Go Public" — is the clearest read so far on what is happening in the quantum computing sector. Bottom line: Wall Street has decided that "the iron is hot," and the companies developing this technology are going public as fast as their bankers can file the paperwork.
The arithmetic, per Bousquette: before this year there were four pure-play public quantum names — D-Wave, Rigetti Computing, IonQ and Quantum Computing. Three more have IPO'd in the last few months — Infleqtion, Xanadu, and Horizon Quantum. Five more have announced plans to come public this year, mostly through SPAC mergers — IQM, Pasqal, Terra Quantum, Seeqc and Quantinuum. That doubles the public quantum universe in twelve months.
Why Now — The Three Catalysts
Three things are pulling capital into the sector at the same time:
- Nvidia legitimized the category. Earlier in April, Nvidia shipped a new family of open-source quantum AI models designed to help researchers build quantum processors. When the most important silicon company on Earth ships a quantum tool, every fund manager has to put quantum on their map. Per Wedbush: "It definitely legitimizes the entire space when you have the world's largest and arguably one of the most important companies dropping this."
- Real engineering milestones. The pure-plays are publishing technical road maps with specific targets — logical-qubit counts, gate fidelities, and a credible path to "fault tolerance" (when quantum machines can run large commercial workloads reliably) by the end of the decade. That changes the conversation from "interesting science" to "fundable capex story."
- The "AI just before ChatGPT" sweet spot. Joe Fitzsimons, the CEO of newly-public Horizon Quantum, framed the timing in the article: "You probably want to be in AI just before ChatGPT comes out. You don't want to be 15 years early, but you don't want to be 15 years late either." Wall Street is positioning for the version of quantum that looks like 2022 NVDA.
The New Capital Wealth Quantum Watchlist
I'm adding the following names to the speculative watchlist (these are not going into core models — quantum is still too binary to size as a sleeve, but it's exactly the kind of asymmetric optionality that belongs on the watchlist for clients who explicitly want speculative exposure).
IONQ · RGTI · QBTS · QUBT
The original four pure-plays: IonQ, Rigetti Computing, D-Wave Quantum, and Quantum Computing Inc. Highest beta to the theme, smallest revenues, biggest moves — up and down. Position-size accordingly.
Infleqtion · Xanadu · Horizon Quantum
Three new arrivals. Infleqtion CEO Matt Kinsella told the WSJ they raced to IPO because "time is of the essence." Track tickers as listings settle.
IQM · Pasqal · Terra Quantum · Seeqc · Quantinuum
Five names that have announced go-public plans, mostly via SPAC. Quantinuum is the Honeywell-backed entity and is the most institutional of the group.
NVDA · IBM · GOOGL · MSFT · AMZN
The "picks and shovels" of quantum — already in the AI/Cyber/Data 20% sleeve. Their quantum efforts are option value on top of their AI franchises. Don't add weight here for the quantum thesis specifically; you already own it.
How To Position For Clients
Three brackets of client suitability:
- Conservative / income-focused clients. Skip. Quantum belongs nowhere in the conservative book. Stay with the dividend names already in the model.
- Moderate / balanced clients with explicit risk appetite. Capped at 1–2% of total account, single-position, in one of the more institutional names (IBM exposure is already there via the AI sleeve; if they want pure-play, IONQ has the largest market cap and longest public track record).
- Aggressive / growth clients with thematic exposure. Up to 3–5% of total account spread across 3–5 names — mostly the pure-plays plus a recent IPO. Treat this as venture-style allocation: total loss is a real outcome, the portfolio thesis is that one or two of these become $50B+ companies and the others go to zero.
The Honest Caveat
Bousquette's article is not a buy recommendation — it is a description of capital flowing into companies that may or may not deliver useful machines for another decade. The same paper this weekend ran the Ellison-debt and Paramount-FCC stories on the same page, and the throughline is "Wall Street is in heat." That is bullish for the sector for the next 6–18 months and it is exactly when discipline matters most.
What I am not doing: chasing IPO opens, sizing more than 5% of any account in this theme, or telling clients quantum is the next NVDA. What I am doing: putting the names on the watchlist, watching for one of the pure-plays to print a real revenue inflection, and being ready to scale into whichever one emerges as the leader once the noise settles.
If A Client Asks About Quantum This Quarter
Three-step conversation:
- What is the goal? "I read the WSJ article" is a curiosity question, not an allocation question. Re-anchor on their plan. If quantum is a curiosity, walk them through the watchlist, point out the binary nature, and move on.
- Risk-budget the position before sizing it. If they want exposure, define the loss they can absorb on this single sleeve before naming a dollar amount. 100% loss should be on the table.
- Pick the lane. One pure-play (IONQ for the largest cap) plus the AI sleeve they already own gets them most of the upside without picking the wrong horse. Avoid concentrating in any single SPAC name.
Anyone who wants me to allocate more than 5% of total account to quantum gets a phone call before I execute. That's not a policy I'm willing to flex on this theme.
Bottom Line
Quantum computing went from four public names to a dozen in twelve months. Nvidia's open-source quantum AI models are the green light institutional capital was waiting for. The setup is real, the timing might be a 2022-AI moment, and most of these companies will not be the winner. The watchlist exists for exactly this kind of theme — track them, position-size them, and don't confuse "exciting" with "core."