Nikkei Plunges 4.9% in Worst Day Since March as AI Capex Doubts Gut Chip Stocks; Pharma Shelters the Rout

The Nikkei 225 fell 3,318 points to 64,425.95 on Thursday — its steepest drop since March — as a hot U.S. CPI print and credit stress in AI infrastructure hammered semiconductor names. The TSE short-selling ratio held at 39.4%, while pharma, real estate and retail caught the defensive rotation.

Nikkei Slips for a Fifth Session as a 600-Point Morning Rally Evaporates on Chip-Sector Jitters

The Nikkei 225 gave back an early advance of more than 600 points to close marginally lower at 67,744.29 on Wednesday, its fifth straight decline, as ASML’s quarterly disclosures triggered afternoon selling in high-multiple tech. The yen stayed weak near 158.4, banks extended a brutal week, and the TSE short-selling ratio eased to 39.0%.

Nikkei Slips Below 70,000 as Tech and Banks Lead Profit-Taking; Short-Sell Ratio Hits 41.6%

The Nikkei 225 fell 1.42% to 69,042.11 on Thursday, a second straight decline, as SoftBank Group, MUFG and chip-equipment names bore the brunt of profit-taking. TSE short selling rose to 41.6% of turnover — the defensive end of the recent range — ahead of Friday’s options SQ.

Japan Semiconductor Cycle: How to Read SEAJ Billings & Inventories

Japan’s chip-equipment cycle runs on five public gauges: SEAJ monthly billings read as a three-month average year on year, global semiconductor sales, customer capex guidance, order backlogs, and inventory days. Here is the reading order, the confirmation rules that separate a real turn from noise, and how to cross-check with JPX short-sale and Japan Securities Finance margin data.

Nikkei Fades a 700-Point Rally as Tokyo Turns Cautious Before the BOJ; Yen Slips to 155.79

The Nikkei 225 closed up 0.33% at 64,136.25 on Thursday, surrendering most of an early 700-point surge as investors squared up ahead of Friday’s Bank of Japan decision and a long holiday weekend. The short-selling ratio held at 41.4% — elevated but within its recent band.