Pfizer (PFE) Stock After Hours on December 9, 2025: Obesity Pill Deal, RSV Questions, and What to Watch Before the Opening Bell
Pfizer Inc. (NYSE: PFE) finished a volatile Tuesday session on December 9, 2025 under pressure, then stabilized in after-hours trading as investors digested a big new obesity-drug licensing deal and fresh headlines around RSV therapies. With the next U.S. market