SK Hynix shares slumped nearly 10% after an earnings miss. Key FactsSouth Korea’s benchmark KOSPI index fell nearly 13% on Wednesday—triggering a halt in trading—before closing 6% down. This triggered a second straight day of selloff in SK Hynix shares, which tumbled nearly 19% before ending the day at KRW 1.4 million ($964)—down more than 9.6% from Tuesday’s close. SK Hynix’s memory chipmaking rival Samsung Electronics’ shares also took a tumble on Thursday—falling 5.2%. Shares of AI chipmaking giant Nvidia—which ceded the title of the world’s most valuable company to Apple earlier this week—were also flat on Wednesday.