Hello, this is Hui Jie writing to you from Singapore, and Leonie Kidd in London. Welcome to another edition of CNBC's Daily Open. Semiconductor giant Micron has claimed an unlikely crown: Wall Street's new margin king, ahead of Nvidia and Meta. But a new challenger has also entered the fray: South Korea's SK Hynix, which filed for a massive $29.4 billion Nasdaq ADR listing, making it the second-largest U.S. listing on record after SpaceX. Meanwhile, as oil prices continue to retreat, the