🟢 Arqit Quantum is trading 5.02% up today as major indexes rose

Arqit Quantum is trading 5.02% higher at $24.28 as major U.S. indexes advanced more than 0.5% on September 25, 2026.

• The S&P 500, Nasdaq Composite, and Dow Jones each advanced more than 0.5%.
• No new company-specific catalyst was identified.
• The latest announcement remains the September 22 Babcock secure-communications demonstration, which does not directly explain the intraday move.