Woofun AI reports that South Korea's KOSPI index rose more than 6% intraday, prompting the exchange to activate the Sidecar mechanism to halt programmatic buying. SK Hynix gained over 9% and Samsung Electronics rose more than 6%. The Nikkei 225 Index increased approximately 1.7%, with Kyaxa up over 8% and Rohm Semiconductor rising more than 4%. In the US, the Philadelphia Semiconductor Index closed up 5.21%, with Intel and AMD both gaining over 8%.