Illustration of the SK Hynix company logo seen displayed on a smartphone screen.South Korea's SK Hynix on Wednesday confirmed that it is weighing a U.S. listing as the memory chipmaker's valuation soars on global demand for artificial intelligence hardware.The company at the center of the AI infrastructure boom said in a regulatory filing that it was "reviewing various measures to enhance corporate value, including a U.S. stock market listing utilizing treasury shares," while noting that no final decision h ...