亚太股市，全线重挫！

Market Overview - The Asia-Pacific stock markets experienced a significant decline, with the South Korean Composite Index showing a particularly sharp drop, falling over 4% during intraday trading [1][3][5]. Technology Sector Concerns - There is growing concern regarding the overvaluation of stocks related to artificial intelligence and technology sectors, leading to a sell-off in tech stocks [2]. South Korean Market Details - The South Korean stock market opened lower, with the Composite Index breaking through key psychological levels of 4000 and 3900 points, dropping more than 100 points at one point, with a decline exceeding 4% before slightly narrowing [5]. - Major stocks in the South Korean market, such as SK Hynix, saw a significant drop, with its price falling over 9%. Samsung Electronics, another leading tech stock, also experienced a substantial decline, with intraday losses exceeding 5% [6]. Japanese Market Performance - The Japanese stock market mirrored the downward trend, with the Nikkei 225 index dropping over 2% and falling below the 49000-point mark, with intraday losses exceeding 1000 points [8]. - Kioxia, a global leader in storage solutions, faced a rare decline, with its stock price dropping over 16% [8]. A-Share Market Movement - The A-share market opened lower, with the Shanghai Composite Index falling by 0.87% and breaking below the 3900-point threshold. The Shenzhen Component Index opened down 1.76%, and the ChiNext Index opened down 2.07% [10][11]. - As of the latest update, sectors such as non-ferrous metals, power equipment, telecommunications, and electricity saw the largest declines, while agriculture, food, and beverage sectors remained relatively resilient [13].