Nikkei falls 1.2% as US yields hit 19-year high; KOSPI dips just 0.2%

Asian stocks faced renewed pressure Tuesday as rising oil prices and a global bond selloff pushed borrowing costs higher, but the impact varied sharply between Japan and South Korea. Japan's Nikkei 225 fell about 1.2% to 65,070.58, while South Korea's KOSPI declined only 0.2% to near 6,877. The divergence reflected different starting points. Japanese equities saw broad selling, with 199 components falling and only 26 rising, as the US 10-year Treasury yield briefly topped 5.27%, a 19-year high. South Korea's market was cushioned by Samsung Electronics and SK Hynix recovering after both fell over 5% on Monday. Brent crude traded around $106.60 per barrel amid limited prospects for a quick US-Iran deal, while Japan's 10-year yield rose to about 3.09%. China's CSI 300 stayed near one-year lows, and Australia's central bank raised its rate to 4.6%, the highest since 2011.