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Asian markets tumble as AI concerns, US uncertainty trigger selloff

Major regional bourses declined sharply as investor concerns over artificial intelligence spending and US political uncertainty rippled across Asia. South Korea's KOSPI index plunged over 8 per cent, triggering trading halts.

LSN India · 6 November 2026

Asian markets tumble as AI concerns, US uncertainty trigger selloff

Asian equity markets experienced significant losses as a confluence of factors unsettled investors across the region. South Korea's KOSPI index fell more than 8 per cent, prompting automatic circuit breaker mechanisms to halt trading. Japan's Nikkei 225 declined 6 per cent, reflecting broader nervousness in the region's largest economies.

The sell-off was driven by mounting concerns over the sustainability of artificial intelligence spending levels, alongside uncertainty surrounding the US political landscape. These headwinds proved sufficient to trigger a cascade of selling pressure across multiple markets, with investors reassessing risk exposure and rotating away from equities.

The volatility underscores the interconnected nature of regional markets and their sensitivity to global sentiment shifts. Asian indices have increasingly tracked movements in US markets as international investors recalibrate their portfolios in response to shifting macroeconomic conditions and technology sector dynamics.

Market participants are closely monitoring developments in the coming sessions to gauge whether the decline represents a temporary correction or signals a more sustained shift in investor risk appetite across the region.