Tokyo stocks pushed higher for a fifth consecutive session on Friday, with the Nikkei 225 closing at 66,364.20, up 1.30%, and the TOPIX (tracked here via the 1306 ETF proxy) gaining 1.29% to 430.30. The advance was broad but had a clear spine: banks and the semiconductor complex. MUFG rose 3.95%, Mizuho 4.18% and SMFG 3.59%, while Tokyo Electron jumped 4.82% and Advantest added 2.84%. Turnover across the TSE was a healthy JPY 8.57 trillion. The yen, meanwhile, went nowhere — USD/JPY hovered around 158.2 late in the session, essentially flat, with traders wary of intervention risk as the pair drifts toward 160. Stabilizing global bond yields, softer crude and constructive headlines from U.S.-China talks in Washington gave the session its supportive backdrop.
One mechanical caveat before the details: this is the fiscal half-year-end ex-dividend cluster week, so index moves can be distorted by dividend drop-offs. Friday’s tape was strong even allowing for that, but keep it in mind when comparing closes across the week.
The Day in Numbers
| Instrument | Close (Sep 25) | Change |
|---|---|---|
| Nikkei 225 | 66,364.20 | +1.30% |
| TOPIX (1306 proxy) | 430.30 | +1.29% |
| Tokyo Electron (8035) | 56,520 | +4.82% |
| MUFG (8306) | 3,714 | +3.95% |
| Sony (6758) | 3,710 | +1.28% |
| Fast Retailing (9983) | 68,620 | +1.03% |
| Toyota (7203) | 2,989.50 | +0.69% |
| SoftBank Group (9984) | 6,150 | -3.18% |
| USD/JPY (as-of quote, not an official close) | around 158.2 | little changed |
SoftBank Group was the day’s notable laggard, down 3.18% on roughly average volume, standing out against an otherwise tech-friendly tape. Within our fixed 95-name large-cap universe, Komatsu led gainers at +5.98% on 1.8x its 20-day average volume, while Rakuten fell 1.68% on heavy 2.1x volume and Nintendo eased 1.17%.
Sectors: Banks Out Front
Using TOPIX-17 ETF proxies (Nomura NEXT FUNDS closes, which can deviate slightly from official sector indices), 13 of 17 sectors advanced. Banks led at +3.49%, a 2.20-point beat versus TOPIX, consistent with the rate backdrop — the BOJ’s September 18 hike to 1.25% and JGB yields at multi-decade highs favor lending margins. Electric & Precision (+1.57%) and Transport & Logistics (+1.52%) followed. On the losing side: Financials ex-Banks (-0.72%), Power & Gas (-0.36%) and Construction & Materials (-0.31%). Electric & Precision is now up 6.9% over five sessions, the strongest short-term run among the leaders.
Positioning Signature: Short-Sell Ratio at 40.0%
Our daily signature stat: short sales made up 40.0% of Friday’s TSE trading value (31.0% under the price rule, 9.0% unrestricted), per JPX. That sits in the lower third of the last eight sessions’ range of 38.1%–44.9%, below the 40.8% average — a modestly less defensive tape, fitting a fifth straight up day. The Nikkei Volatility Index reinforced the calm, dropping 7.81 points to 20.30, around its 34th percentile over the last 911 sessions.
The Thursday-dated JSF standardized-margin data (today’s figures publish later) tells a consistent story on both sides of the ledger. Shares borrowed for shorting were being returned at Sony (stock-lending balance down 27,100 shares), Advantest (-33,300) and SoftBank Group (-67,300) — short covering into strength. Leveraged long demand, meanwhile, kept building: loans for margin buying rose at Toyota (+143,900 shares), MUFG (+109,700) and Tokyo Electron (+75,300). Squeeze costs remain widespread — 395 of 911 loanable issues carried a gyaku-hibu premium charge on Thursday, the extra daily fee short sellers pay when borrowable stock runs tight. JSF also has 378 issues under new-application suspension and 144 under caution alerts, with recent additions including Kura Sushi and Tekken Corp.
On the slower-moving regulatory side, Friday’s JPX large short-position disclosures — lagged position filings, not today’s selling — ran to 848 reports across 611 issues. The most heavily shorted by disclosed aggregate remain small caps: ReYuu Japan at 17.0% of shares outstanding and Metaplanet at 12.0%. The largest changes versus prior reports were reductions, led by Musashi Seimitsu at -1.64 points.
Weekly Flows
The latest JPX investor-type data covers the week of September 7–11 (published with a lag — these are not Friday’s flows): foreign investors net bought JPY 0.73 trillion of TSE Prime equities while individuals net sold a modest JPY 0.05 trillion. One honest caveat: MOF’s cross-border securities data for the overlapping week of September 6–12, compiled on a different reporting basis, shows foreigners as net sellers of JPY 1.52 trillion. The two series regularly diverge on magnitude, but a directional disagreement this size is worth noting — treat the foreign-buying signal as unconfirmed rather than clean.
Broader retail leverage, per the JPX weekly margin balances for Tokyo and Nagoya as of September 18, showed margin buying at JPY 6.46 trillion (down 0.19 trillion on the week) against margin selling of JPY 0.88 trillion.
Rates and the Yen
MOF’s official JGB curve (Thursday’s marks) moved sharply higher across the board: the 10-year at 3.073% (+9.2bp), the 5-year at 2.400% (+9.5bp) and the 30-year at 4.115% (+7.1bp) — 10-year levels not seen since the mid-1990s. Equities have so far absorbed this repricing, helped by the BOJ’s two dissenting votes at the September 18 meeting, which markets read as tempering the pace of further hikes. The yen near 158 continues to cushion exporters, though it cuts both ways — Fast Retailing’s import cost exposure is the standing counter-example.
What to Watch
- Ex-dividend distortions: the half-year-end dividend cluster can mechanically drag index levels — separate that from genuine selling in the coming sessions.
- USD/JPY near 160: intervention caution capped the yen’s range Friday; a push toward 160 would test official tolerance.
- SoftBank Group: Friday’s 3.18% slide against a rising tech tape bears watching for follow-through — the stock remains a bellwether for sentiment toward AI-linked names.
Disclaimer: This is an information and analysis publication, not investment advice. See our Methodology for data sources, standards, and our corrections policy.