Why Pfizer, BioNTech, Moderna, and Novavax Stocks Are Falling Today

Why Pfizer, BioNTech, Moderna, and Novavax Stocks Are Falling Today

This isn't shaping up to be a good week for the stocks of leading COVID-19 vaccine makers. Shares of Pfizer (NYSE: PFE) were down 1.6% at 11:27 a.m. BioNTech (NASDAQ: BNTX) stock had fallen 9.4%. Moderna's (NASDAQ: MRNA) shares were 6.2% lower.