Shares of IREN surged to $60.40 (+6.28%) on May 26, 2026, after a new filing revealed that legendary investor Paul Tudor Jones significantly increased his investment in the company, viewing it as a major player in the "AI infrastructure buildout."

  • According to the Q1 2026 13F filing from Tudor Investment Corp, Jones purchased an additional 11.58 million shares, bringing his total to 31.8 million.
  • This represents a 57% increase in his holdings, signaling a strong, long-term conviction in the data center and infrastructure company.
  • The move is seen as a significant bet on the continued growth of the artificial intelligence sector.