Woofun AI data shows that the Philadelphia Semiconductor Index opened with a 2% increase, settling at 11,959.04 points. Individual component performance varied, with Micron Technology leading gains at 3.84%, followed by Advanced Micro Devices at 3.63% and TSMC at 2.61%. ASML rose 2.45%, Broadcom advanced 2.07%, and Nvidia climbed 1.31% during the opening session.