Arqit Quantum Inc. is trading at $13.81 (+5.54%) amid continued reaction to its June 10 defense-focused collaboration announcement.

  • The partnership with Mattermost, archTIS, and Whitespace is positioned around a secure, AI-enhanced collaboration platform for defense customers.
  • The move appears to be extending the prior session’s news-driven gain, supported by broader strength across major U.S. indexes on June 11.