Horizon Quantum Holdings Ltd. is trading at $35.96 (12.4% up). - The company announced plans to install a 256-qubit trapped-ion quantum system from IonQ at its Dublin headquarters, supported by Ireland's National Semiconductor Strategy. - This development likely contributed to today's gains, alongside a broader surge in quantum-computing–themed names. - The stock continues a highly speculative, low-float momentum rally, influenced by tight insider ownership and elevated volatility.