WhiteFiber is trading 5.22% up at $19.96, with the move appearing aligned with stronger semiconductor and AI-infrastructure sentiment; no new company-specific announcement was identified for September 21, 2026.

  • It followed a 6.22% gain on September 18.
  • The September 14 investor presentation highlighted North Carolina expansion, substantial cloud-contract value, and potential capacity growth.
  • Broader U.S. futures and technology shares were higher.