Nikkei 225 surged 1,378 points on September 7, 2026 as AI and semiconductor stocks drove the price-weighted benchmark higher, but 883 of the Tokyo Stock Exchange's Prime Market listings fell while only 630 advanced -- a divergence that reveals how Kioxia Holdings and SoftBank Group can move Japan's headline index even as the broader market quietly declines.
Nikkei 225 Climbs 2% on AI Chips, but 883 Tokyo Stocks Fell as 630 Rose
