Japan and South Korea Stock Markets Hit Historical Highs
Japan's Nikkei 225 index closed at a new high, while South Korea's KOSPI index also set a new historical record.
The Nikkei 225 recently broke the 60,000-point mark, and the KOSPI surpassed 6,600 points, driven by strong performance in the semiconductor and AI-related sectors as well as robust export data, leading both countries' stock markets to top the Asia-Pacific region.
In terms of market mechanisms, global investors accelerated their purchases of Japanese and South Korean tech stocks due to the recovery of the semiconductor cycle and optimistic export outlooks. Under event-driven conditions, funds flowed from U.S. stocks and emerging markets into high-beta assets in Japan and South Korea, benefiting local institutions and export companies, while traditional defensive sectors faced short-term pressure.
Source: Public Information
ABAB AI Insight
Japan and South Korea's stock markets had previously reached new highs multiple times in 2025 driven by the semiconductor cycle. This latest dual breakthrough of key integer levels continues to affirm both countries' historical positioning as core players in the global chip supply chain. The Nikkei benefits from AI hardware demand, while the KOSPI is driven by better-than-expected performances from export giants like Samsung and SK Hynix.
In terms of capital pathways, overseas institutions are massively allocating to Japanese and South Korean indices and semiconductor stocks through ETFs and derivatives, while local pensions and corporate annuities are also increasing their positions. The motivation is to lock in supply chain premiums during the global AI capital expenditure expansion cycle, while utilizing the relative valuation of the yen and won to provide additional buffers.
Similar to the path of Taiwan and South Korea's stocks hitting highs during the 2023-2024 AI boom, and the long-term upward trend of the Nikkei following Japan's "new capitalism" corporate governance reforms, the current phase indicates that East Asian stock markets are at a critical transition point from cyclical recovery to an AI-driven structural bull market expansion.
Essentially, this represents capital concentration: global AI and semiconductor capital expenditures are shifting funds from dispersed markets to core assets in the Japan-South Korea supply chain, with the mechanism being that export data and performance validation strengthen pricing power, forcing international capital from the broader emerging markets into high-tech sectors.