08:55 AM EDT, 08/16/2024 (MT Newswires) -- Health care stocks were declining premarket Friday, with The Health Care Select Sector SPDR Fund (XLV) down 0.2% and the iShares Biotechnology ETF (IBB) marginally lower.

BioNTech (BNTX) shares were down more than 2% after the biotech firm and Pfizer ( PFE ) reported that their phase 3 study assessing a combined mRNA vaccine candidate targeting influenza and COVID-19 missed one of two primary immunogenicity targets.