OpenAI's unveiling of its artificial general intelligence model Astra has intensified demand expectations for memory semiconductors, pushing earnings forecasts for Samsung Electronics and SK Hynix to record levels despite a stronger won. Astra's heavy real-time data requirements are boosting demand for high-bandwidth memory and standard DRAM, while inventories at both companies reportedly fell below 10 days in the third quarter, compared with normal levels of four to six weeks. TrendForce said global DRAM revenue rose 59.5% quarter-over-quarter to $154.73 billion in the second quarter. Brokerages have raised targets for the two chipmakers, with FnGuide consensus estimates pointing to combined third-quarter operating profit of more than 190 trillion won. The KOSPI briefly reached 7,100 on September 8 before profit-taking reversed the move, while retail investors recorded more than 3 trillion won in net selling the previous day. Separately, Musinsa filed for preliminary review of a KOSPI listing that could value the fashion platform at up to 10 trillion won, even as first-half operating profit declined and a tax investigation proceeds. Bitcoin and major altcoins fell as investors awaited U.S. inflation data and the Federal Open Market Committee meeting.