SK Hynix, a south korea-based memory chip maker, has raised a significant amount of money in its us ipo, with reports suggesting over $26 billion. The company's stock reportedly traded up 13% at one point, but there are conflicting reports about its current performance, with some outlets indicating a decline of more than 12%. The ipo is being described as one of the largest in us history, with some outlets noting its impact on other memory chip makers.