Pfizer Stock Outlook for 2026: Oncology Momentum, Obesity Deals, and the Patent Cliff Investors Can’t Ignore
Pfizer on Dec. 22 announced a new metastatic prostate cancer research program with Flagship Pioneering and Repertoire Immune Medicines, the eighth under their alliance. The move follows Pfizer’s Dec. 16 guidance projecting flat-to-down 2026 revenue, ongoing COVID product declines, and increased R&D spending. Management warned of “bumpy” years ahead as exclusivity losses weigh on sales.