Markets rebound after tech rout triggered by Democrats' sweeping victory in US midterm elections. South Korea's KOSPI triggered a circuit breaker after falling over 8 per cent, while Japan's Nikkei slid 6 per cent as concerns over AI spending and US political uncertainty rattled global. Reuters also reported demand for government bonds during Asian trading. 10-year Treasury yield at 4.838% and said Japan’s comparable government-bond yield had fallen as.