These large-cap stocks were the best performers in the last week. Are they in your portfolio? Broadcom Inc. (NASDAQ:AVGO) shares jumped 23.07% after the company reported upbeat results for its fiscal second quarter. Many analysts raised the price forecast on the stock.Arm Holdings Plc (NASDAQ:ARM) jumped 17.14% on the report that the company will join the Nasdaq-100 Index starting June 24, 2024.Caseys General Stores, Inc. (NASDAQ:CASY) shares escalated 13.99% after the company reported better than expected Q4 financial results and increased its quarterly dividend. Many analysts boosted their p…