SK Hynix shares hit multidecade highs, Samsung also surges as chipmakers partner with OpenAI
Headquarters of Samsung in Mountain View, California, on October 28, 2018. Smith Collection/gado | Archive Photos | Getty Images Shares…
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Klarna (KLAR) stock surges after U.S. IPO
Sebastian Siemiatkowski, chief executive officer and co-founder of Klarna Holding AB, center, and Michael Moritz, chairman of Klarna Bank AB,…