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Asian stocks tumble as Democrats gain ground in US midterm elections

Japanese and South Korean equities declined sharply on Wednesday following early indications that the Democratic Party was performing better than expected in US midterm voting. The sell-off reflected investor concerns over potential shifts in US political direction and economic policy.

LSN World News · 4 November 2026

Asian stocks tumble as Democrats gain ground in US midterm elections

Tokyo and Seoul markets opened lower as exit polls and early returns showed Democrats outperforming historical patterns in the US midterm elections. The Nikkei 225 and Korea Composite Stock Price Index both shed more than 4 percent during trading, signalling investor anxiety over the implications of a divided US government or Democratic-controlled Congress.

Market analysts attributed the declines to uncertainty surrounding potential policy changes under Democratic leadership, including concerns about corporate taxation, trade regulations, and inflation-fighting measures. Asian investors traditionally prefer policy predictability, and shifts in US political control can trigger reassessment of regional economic outlooks.

The broader sell-off extended beyond Japan and South Korea, with regional bourses also experiencing pressure as traders repositioned portfolios ahead of clarity on final US midterm results. Market participants are closely monitoring how Democratic gains might influence Federal Reserve policy decisions and US-Asia trade dynamics in coming months.

Analysts cautioned that volatility could persist until markets fully digest the election outcome and its implications for corporate earnings and geopolitical stability in the region.