The Nikkei 225 fell 2.79% to 66,835.54 on Thursday as semiconductor and AI names were sold hard on valuation concerns. Autos rallied on a steady 162 yen, the short-sell ratio held at 37.4%, and the Nikkei VI sat at an elevated 32.27.
The Nikkei 225 fell 1.92% to 67,242.73 on Monday as Middle East escalation and an Asia-wide rout hammered chip stocks, while banks led a small band of gainers. Short selling ran at 38.9% of TSE turnover and the Nikkei VI held at stressed levels.
Tokyo ended the week with a tech-led advance: the Nikkei 225 rose 1.20% to 68,557.73 on options SQ day, SoftBank Group jumped 10.65%, and the yen firmed to 161.67. Beneath the rally, the TSE short-selling ratio held at an elevated 41.6% and 43% of loanable issues carried squeeze premiums.