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%.
Japan’s expanded NISA allows ¥3.6 million a year (¥18 million lifetime) of investing exempt from Japanese tax on eligible gains — yet in JPX weekly data individuals net sold ¥0.05 trillion while foreigners net bought ¥0.73 trillion (week of Sep 7–11, 2026). Here is what NISA money actually buys, why much of it leaves Japan entirely, and how to read the retail line in the weekly investor-type tables.
Tokyo ward-area CPI is released at 8:30 a.m. JST in the final week of each month — covering that same month — roughly three to four weeks before Japan’s nationwide CPI. Here is why the gap exists, how closely Tokyo tracks the national print, and how BoJ-watchers and JGB markets read the number first.
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.
The BoJ raises rates not by draining reserves but by paying more on them: lift the rate on banks’ excess reserves and the overnight call rate follows almost mechanically. Here is the full plumbing — call market, TIBOR, lending rates, JGB yields, equities — with a step-by-step method for reading the September 2026 curve.
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.
The Nikkei 225 shook off a soft US lead to close 0.69% higher at 63,923 on Wednesday, powered by energy and chip-equipment names, with the yen at 155 and the Bank of Japan decision two days away. Short selling ran at 41.5% of TSE turnover.
Nikkei 225 futures trade nearly 24 hours across Osaka, SGX, and CME, and Tokyo’s 9:00 cash open typically converges toward the basis-adjusted overnight futures level. How each venue hands off to the next, how to compute fair-value basis from short-term yen funding, and why the quarterly roll is not the same as SQ.
Japan’s Services PPI (SPPI) lands around the 25th–26th of each month at 8:50 a.m. Tokyo time on the Bank of Japan’s website, and it is the BoJ’s cleanest read on wage-driven ‘homegrown’ inflation. Here is what it measures versus CPI and the goods PPI, which labor-intensive components to watch, and how JGB yields, the yen, and bank stocks typically react to a beat or miss.
The Nikkei 225 fell 1.93% to 64,011 on major SQ day as semiconductor names bore the brunt of a hot US PPI print and rising global yields. The TSE short-selling ratio climbed to 44.9%, the top of its recent range, while financials and autos quietly advanced.