Novavax is trading 10.32% up now at $10.31 as biotechnology shares rally alongside broader risk appetite.

  • The XBI biotech ETF is up 2.55%, supported by improving industry demand, stronger research-and-development funding, and renewed M&A optimism.
  • Novavax’s investor-relations page shows no new company-specific announcement dated September 17, 2026; its latest listed item is participation in September investor conferences.
  • The move therefore appears sector-driven rather than tied to a fresh Novavax catalyst.