Kodiak Sciences is trading 5.55% down at $80.99 in pre-market; biotech-sector weakness is a possible context, not a confirmed cause.

  • Biotech ETF XBI is down 3.65% pre-market.
  • No new company-specific announcement explaining the October 19 decline surfaced in the search.
  • Recent coverage points to previously announced clinical data presented at AAO 2026 and earlier DAYBREAK results.