Asian stocks were mostly higher on Tuesday after an AI-led rally on Wall Street ahead of major corporate earnings and central bank decisions. US futures edged lower after earlier gains and oil prices extended losses. South Korea’s Kospi jumped more than 4 per cent and closed 3.1 per cent higher at 5,638.34. Computer chipmaker SK hynix rallied 5.2 per cent and Samsung Electronics gained 4.2 per cent.