Nikkei Storms 3.7% Higher to 66,300 as AI Chip Rally Ignites SoftBank; Short-Sell Ratio Eases to 41.8%

The Nikkei 225 jumped 2,342.91 points to 66,300.44 on Wednesday as an overnight surge in US chip names lit up Tokyo’s AI complex. SoftBank Group soared 13.96%, Advantest 8.77%. The TSE short-selling ratio eased to 41.8% — still defensive, but the least so in three sessions.

Nikkei Slips 0.6% as Intervention Shadow Weighs on Exporters; Chip and Heavy-Industry Names Power a Split Tape

The Nikkei 225 closed at 63,957.53, down 0.63%, while the TOPIX proxy edged higher — a split tape as semiconductor-equipment and heavy-industry names surged against weakness in banks, exporters and index heavyweights. Short selling stayed elevated at 45.3% of TSE turnover.

Nikkei Slides as Japan-US Yen Intervention Bites; Fanuc Plunges, Volatility Spikes

The Nikkei 225 fell 0.94% to 63,754.90 on Monday as a confirmed joint Japan-US yen-buying intervention sent the dollar down 2.12% to 156.79, pressuring exporters. Fanuc cratered 14% on heavy volume, the TSE short-selling ratio held at an elevated 45.4%, and the Nikkei VI jumped to a stressed 35.50.