Large-cap stocks rallied last week, particularly in the semiconductor sector, fueled by strong earnings and positive guidance from key players. Arm Holdings plc (NASDAQ:ARM) led the pack with a remarkable 40.15% gain, largely influenced by Intel Corporation's (NASDAQ:INTC) impressive Q1 financial results, which also saw its stock rise by 20.01%. Other notable performers included Advanced Micro Devices, Inc. (NASDAQ:AMD) with a 23.06% increase and Texas Instruments Incorporated (NASDAQ:TXN), which jumped 19.27% after surpassing earnings expectations. The semiconductor sector's optimism was further supported by reports of reduced production at a Samsung Electronics facility due to strike action, potentially benefiting competitors. Overall, the positive outlook in the semiconductor industry and strong earnings reports contributed to a surge in investor sentiment.