Asian stocks today: Markets trade mixed as investors assess AI outlook; Nikkei gains over 600 points, HSI down 0.1%

Asian markets showed mixed trading as investors navigated the AI rally, US interest rate concerns, and a Washington shutdown. Japan's Nikkei climbed, while Hong Kong and Singapore dipped. A Gaza ceasefire phase offered some relief, easing oil and gold prices. Despite AI bubble fears, Wall Street hit new records, buoyed by Oracle's results and hopes for Japanese stimulus.