🟢 Arqit Quantum is trading 5% up in after-hours trading amid broad risk-on sentiment

Arqit Quantum is trading at $21.10, up +5.24%, amid broad risk-on sentiment.

• No confirmed September 11, 2026 company-specific announcement or earnings release was identified; Arqit’s latest listed update was its September 1 satellite-security demonstration.
• The S&P 500, Nasdaq, and Dow each gained more than 0.8% during the session.
• Arqit’s September 9 AGM approval news was earlier and does not directly explain the after-hours move; confidence is limited because no direct catalyst was reported.