TOKYO — On Wednesday, August 5th, 2026, Japan's Nikkei Stock Average surged by more than 2,000 points. However, many investors are hesitant to fully embrace the rally as Japanese stocks show increasing correlation with the volatile South Korean stock market, particularly the KOSPI. Both the AI-heavy Nikkei and South Korea's KOSPI experienced sharp gains on the same day, reflecting a trend where global investors are trading these markets more as a combined entity. This linkage has introduced caution among market participants despite the strong performance.
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Japan Stock Rally Tempered by Volatile South Korea Market
Despite a sharp gain in Japan's Nikkei Stock Average, investors remain cautious due to its growing linkage with the volatile South Korean KOSPI.
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