大涨3.09%！韩国股市创新高，三星股价盘中一度上涨逾5%，今年以来上涨近50%

Group 1 - The Korean stock market experienced significant gains on February 19, with the KOSDAQ 150 index and futures rising sharply, leading to a temporary suspension of programmatic trading on the KOSDAQ market [1] - The Nikkei 225 index rose by 0.57% to close at 57,467.83 points, while the Seoul Composite Index increased by 3.09% to 5,677.25 points, reaching a historical high during the trading session [1] - Key stocks in the brokerage sector saw substantial increases, with firms like SANGSANGININV&SEC and SK Securities hitting the daily limit of 30% increase, and HMC Investment Securities rising over 29% [1] Group 2 - Memory chip stocks also performed strongly, with Samsung's stock price reaching a historical high of 190,900 KRW, closing up 4.86%, while SK Hynix rose by 1.59% [1] - Samsung's stock has surged nearly 50% year-to-date, continuing its rapid growth from 2025, amid reports of negotiations for pricing on its latest AI memory chips, which may be up to 30% higher than the previous generation [1] - KB Securities noted that the shortage of memory chips has intensified, with major clients' order fulfillment rates at only 60%, and AI data center companies accounting for 70% of Samsung's memory shipments [1] Group 3 - Citigroup analysts projected a 17.5% increase in DRAM supply and a 16.5% increase in NAND flash supply for the year, while demand for DRAM is expected to grow by 20.1% and NAND flash demand by 21.4%, indicating that demand growth continues to outpace supply [1]