These ten large-cap stocks were the best performers in the last week. Are they in your portfolio? Summit Therapeutics Inc. (NASDAQ:SMMT) shares rocketed 98.32% after the company announced it raised $235 million in net proceeds.BioNTech SE (NASDAQ:BNTX) stock gained 31.77% in the last week after GSK halted development of the Herpes Simplex Virus Vaccine, clearing the path for other contenders like Moderna and BioNTech.Applovin Corporation (NASDAQ:APP) stock jumped 28.38% as several analysts raised the price target on the stock.Chewy, Inc. (NYSE:CHWY) stock escalated 21.37%. The stock possibly j…