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.

Nikkei Grinds to 66,423 as AI Capex Lifts Chip Stocks — But Short Selling Hits 43% of Turnover

Tokyo closed higher Thursday on renewed AI infrastructure optimism, with Advantest and SoftBank Group leading. Beneath the surface, the TSE short-sell ratio jumped to 43.2% of turnover and the Nikkei VI sits at a stressed 93rd percentile — a defensive tape wearing a bullish headline.

Nikkei Fades as Yen Breaks 163: Banks Lead a Split Tape, Short-Sell Ratio Hits 43%

Tokyo surrendered an early tech-led rally on Tuesday, with the Nikkei 225 slipping 0.18% to 66,115.60 while banks and trading houses pushed TOPIX higher. The yen sank to 163.05 per dollar, JGB yields ground higher, and the TSE short-selling ratio jumped to 43.0% — the top of its recent range.