Horizon Quantum Holdings Ltd. is trading 4.7% up at $18.65, extending a sharp rally triggered by the announcement of its Dublin quantum lab and plans to install an advanced quantum computer.
- The stock previously surged 63.3% on June 15, 2026, on heavy trading volume following the initial Dublin news.
- Current price action reflects follow-through buying as investors reassess the company's pre-revenue valuation and recent SPAC-backed listing.