Cipher Mining is trading 4.01% up at $8.82 in pre-market on October 28, apparently extending the prior session’s tech- and AI-led rebound.

  • Coverage attributed the October 27 rally in Cipher and peers to renewed AI optimism after Anthropic’s IPO filing and Broadcom-linked financing.
  • No new company-specific announcement explaining the pre-market rise surfaced in the search.
  • Bitcoin and Ethereum are up 0.97% and 1.00%, respectively, since the last close; those gains are comparatively modest, while AI-infrastructure sector sentiment appears the clearer context.