South Korea's SK Hynix and US chipmaker Micron both surpassed $1 trillion (€860bn) in market capitalisation within 24 hours of each other. Seoul's KOSPI index also hit an all-time high as AI continues to reshape markets.

AI's memory chip boom just minted another trillion-dollar company.

May 26 : Micron Technology briefly topped $1 trillion in market value for the first time on Tuesday, crowning a dizzying rally that has cemented the U.S.'s largest memory…