美国芯片股盘前上涨，AMD上涨5.5%，ARM控股上涨4%

Core Viewpoint - US chip stocks experienced a pre-market increase, indicating positive market sentiment towards the semiconductor sector [1] Company Performance - AMD saw a rise of 5.5% [1] - ARM Holdings increased by 4% [1] - Micron Technology rose by 3.3% [1] - Broadcom experienced a 3.2% increase [1] - Intel's stock went up by 2.3% [1]