Pfizer Stock Soars as Covid-19 Antiviral Shows Stunning Efficacy
Shares of Pfizer (ticker: PFE) jumped 12.2% in premarket trading Friday, while Merck (MRK) shares dropped 8.6%.
Shares of Pfizer (ticker: PFE) jumped 12.2% in premarket trading Friday, while Merck (MRK) shares dropped 8.6%.
