Asian markets came under renewed selling pressure on September 2, 2026, as sharp declines in South Korea and Japan weighed on the broader region. Every reported indicator finished lower, marking a significantly weaker session than the relatively contained moves seen at the beginning of September.

The KOSPI and Nikkei recorded the largest equity-market losses, while China and Australia also experienced declines approaching 1%. Hong Kong remained comparatively resilient, although the Hang Seng still finished marginally lower.

South Korea Leads the Selloff

South Korea’s KOSPI Composite Index plunged 3.99% to 6,562.72, recording the largest decline among the major Asian markets.

The retreat pushed the benchmark sharply below the 6,800 level and further away from the psychologically important 7,000 threshold. The move represents a significant reversal after the KOSPI had shown signs of stabilization during the final sessions of August.

The magnitude of Wednesday’s decline highlights the elevated volatility continuing to affect South Korean equities.

Japan Drops Below 65,000

Japan’s Nikkei 225 fell 2.85% to 64,325.64, recording the second-largest decline among the major regional benchmarks.

The sharp retreat pushed the index below the 65,000 level and further below 66,000, a threshold it had maintained during much of the previous week’s recovery.

The decline marks a notable deterioration in sentiment toward Japanese equities and places renewed focus on whether the benchmark can stabilize above 64,000.

China and Australia Fall Nearly 1%

China’s SSE Composite Index declined 0.97% to 3,941.39, reversing part of its recent recovery toward the 4,000 level.

The benchmark remains below that important psychological threshold, with Wednesday’s decline increasing the distance from the 4,000 mark.

Australia’s S&P/ASX 200 also fell 0.97%, ending at 8,978.40. The decline pushed the benchmark below the 9,000 level for the first time in the recent sequence of sessions.

India and Hong Kong Show Relative Resilience

India’s S&P BSE Sensex declined 0.49% to 76,570.35, recording a more moderate loss than the major Northeast Asian benchmarks.

Hong Kong’s Hang Seng Index slipped just 0.07% to 25,311.21, making it the most resilient of the reported Asian equity markets.

Despite the decline, the Hang Seng remained above 25,000, preserving an important level of technical support.

Currency Markets Also Weaken

The Australian Dollar Index declined 0.24% to 71.48, while the Japanese Yen Index fell 0.25% to 62.43.

The simultaneous weakness across both currencies reinforced the broadly defensive tone of Wednesday’s Asian session.

Outlook

Investors will now watch whether the KOSPI can stabilize above 6,500 and whether the Nikkei can hold above 64,000 following the sharp declines.

China’s ability to recover toward 4,000 will remain an important regional indicator, while Australia’s S&P/ASX 200 will need to reclaim 9,000 to signal renewed stability. Hong Kong’s ability to remain above 25,000 also becomes increasingly important after the broader regional selloff.

For now, Asia’s September recovery has faced a significant setback, with every reported indicator declining and the heaviest pressure concentrated in South Korea and Japan. The next sessions will be crucial in determining whether Wednesday’s losses represent a short-term correction or the beginning of another broader period of regional weakness.