PFE ▼ -0.9% - Pfizer Inc. $PFE PFIZER AND BIONTECH RECEIVE U.S. FDA APPROVAL FOR XFG-ADAPTED COVID-19 VACCINE Pfizer and BioNTech received FDA approval for their XFG-adapted COVID-19 vaccine today, yet shares declined 0.9%. The approval represents a regulatory milestone for the companies' updated vaccine offering, though the modest selloff suggests investors may have already priced in the authorization or have concerns about the competitive landscape and demand outlook for COVID-19 vaccines at this stage in the pandemic. 27-AUG-2026 04:32 PM ET