US-listed quantum computing penny stocks priced $0.50 to $5, ranked by today's percentage change. Quantum hardware builders, software toolchains, and applied quantum plays — everything tagged to the quantum computing theme. Updated intraday.
| # | Symbol | Company | Sector | Price | Day Chg | Volume |
|---|---|---|---|---|---|---|
| 1 | LAES | SEALSQ Corp Ordinary Shares | Technology | $2.0250 | -4.27% | 4.2M |
| 2 | QCLS | Q/C Technologies, Inc. Common Stock | Technology | $0.5530 | -7.22% | 213K |
| 3 | BTQ | BTQ Technologies Corp. Common Stock | Technology | $2.4550 | -9.33% | 2.6M |
| 4 | XNDU | Xanadu Quantum Technologies Limited Class B Subordinate Voting Shares | Technology | $3.4900 | -10.38% | 9.7M |
| 5 | XNDU | Xanadu Quantum Technologies Limited Class B Subordinate Voting Shares | Technology | $3.4900 | -10.38% | 9.7M |
| 6 | XNDU | Xanadu Quantum Technologies Limited Class B Subordinate Voting Shares | Technology | $3.4900 | -10.38% | 9.7M |
| 7 | QNC | Quantum eMotion Corp. | Technology | $1.4050 | -10.88% | 936K |
Quantum computing is one of the most speculative penny-stock themes on the board. The universe is small, almost entirely pre-revenue or low-revenue, and price action is driven more by hype-cycle headlines (Google quantum supremacy claims, IBM milestones, government research grants) than by company-specific operational results. Read this scan as a tracking tool, not as a buy list.
See also: AI penny stocks (related compute theme), defense penny stocks (government-contract overlap), penny stocks under $1.
Quantum computing stocks — the full-market theme page, all price ranges.