Asian stocks struggled to stay above water in early trade on Thursday, as tech earnings optimism provided only fleeting support amid lingering concerns ​over AI and uncertainty in the Gulf. MSCI's broadest index of Asia-Pacific shares ​outside Japan was down 0.2 per cent, on track for a fourth straight week of decline. ‌Japan's Nikkei stock index gave up earlier gains to trade 0.4 per cent lower, while Korean shares were down more than 1 per cent.