Why BioNTech, Moderna, and Novavax Stocks Soared This Week

Shares of BioNTech (NASDAQ: BNTX) soared 21.3% this week as of the market close on Thursday. Moderna (NASDAQ: MRNA) and Novavax (NASDAQ: NVAX) stocks also both jumped 12.4% this week. The common denominator driving all three vaccine stocks higher was increased concern about the delta variant of the coronavirus.