🟢 Roundhill Memory ETF surges 5.3% as SK Hynix becomes South Korea's most valuable company

Roundhill Memory ETF (DRAM) is trading 5.3% up today, extending its sharp June rally. - The surge is primarily driven by SK Hynix shares climbing 5.6% in Seoul trading, making it South Korea's most valuable company and boosting other memory chip stocks. - Persistent investor enthusiasm for AI-related high-bandwidth memory (HBM) demand continues to fuel the fund. - The move is also supported by elevated options activity and the fund’s Korea-heavy portfolio structure.