Microsoft signs on to rack AI system that rivals Nvidia

After a decade-long comeback, chip giant Advanced Micro Devices is preparing to ship its first rack-scale system for artificial intelligence, called Helios, to a growing list of customers that now includes Microsoft. It’s the first rival to Nvidia‘s wildly popular Grace Blackwell and Vera Rubin systems, and is aiming to give the world’s most valuable…

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South Korean traders’ leveraged bets unravel

A Korea Exchange (KRX) employee monitors stock market data on computer screens in the Yeouido financial district of Seoul, South Korea, on May 11, 2026. Chris Jung | Nurphoto | Getty Images South Korean retail investors who piled into leveraged bets on the country’s AI champions are nursing steep losses after a sharp reversal, exposing…

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