SK Square is trading at KRW 828,000, up 7.67%, as investors welcomed Anthropic’s Nasdaq IPO filing and renewed optimism about AI demand. - Reports linked the filing to improved sentiment about AI profitability and semiconductor demand; SK Square holds a stake in SK hynix. - The rally was broad: the KOSPI gained 3.09%, and major semiconductor stocks advanced. No separate SK Square announcement was identified as the catalyst.