Core Viewpoint - The semiconductor sector is experiencing a significant downturn, with major companies' stocks declining sharply following AMD's disappointing guidance for the first quarter of 2025 despite strong fourth-quarter revenue performance [1] Group 1: Stock Performance - Semiconductor stocks are all down, with Huahong Semiconductor falling by 5.37% to HKD 96.9, GigaDevice down 4.34% to HKD 291.2, SMIC down 3.85% to HKD 66.1, and Shanghai Fudan down 3.76% to HKD 46.08 [1] - AMD's stock plummeted by 17.31%, marking its largest single-day drop since May 2017 [1] Group 2: AMD's Financial Results - AMD reported over USD 10 billion in revenue for the fourth quarter of the previous year, achieving a year-on-year growth rate exceeding 30% [1] - Earnings per share (EPS) growth has slowed but exceeded analyst expectations by nearly 16% [1] Group 3: Market Reaction - Following AMD's decline, major memory chip manufacturers also saw significant drops, with SanDisk down 15.95% and Micron Technology down 9.55% [1] - On February 5, the Japanese and Korean stock markets opened lower, with Samsung Electronics and SK Hynix both dropping over 4%, and SoftBank Group's stock falling more than 6% [1]