South Korea’s SK Hynix on Thursday reported a 158% rise in first-quarter profit, thanks to strong sales of advanced chips used in generative artificial intelligence chipsets and as some customers stockpiled semiconductors ahead of potential U.S. tariffs. The Nvidia supplier reported a 7.4 trillion won ($5.19 billion) operating profit for the January-March period versus 2.9 trillion won a year earlier. That compared with a 6.6 trillion won average forecast by LSEG SmartEstimate, which is weighted toward analysts who are more consistently accurate.