Friday looked far worse at lunchtime than it did at the bell. The Nikkei 225 plunged more than 1,400 points in the morning — touching an intraday low near 61,462, almost exactly at its 200-day moving average — before determined afternoon dip-buying and short-covering pared nearly all of the damage. The benchmark closed at 62,693.16, down 0.34% (-214.68 points). The broader market fared worse: the TOPIX-tracking 1306 ETF, our index proxy, finished down 1.02% at 416.30.
The trigger was Wednesday’s Wall Street session, where the S&P 500 lost 1.21% to 7,663.43 and the Nasdaq dropped 2.6%, led by a rout in semiconductors after cautious guidance from Lam Research and fresh scrutiny of AI infrastructure spending following Meta’s updates. Tokyo opened into that air pocket. The afternoon recovery had help: S&P 500 futures stabilized overnight, trading up 0.07% at 7,709.75 by the Tokyo close, and the yen gave back part of its early safe-haven bid. USD/JPY stood at 156.80 at Friday’s close, with the yen up 0.84% on the day after touching a five-week intraday high.
Domestically, September national CPI accelerated to 2.1% year-on-year from 1.9%, with core-core inflation at a 10-month high of 2.5% — enough to keep a Bank of Japan hike later this year (December is the market’s focus) firmly in play, even as the immediate meeting is expected to hold rates steady.
Large Caps: Semis Recover, Banks Don’t
The heavyweights told the story of the rebound. Tokyo Electron, hammered early with the rest of the chip complex, closed essentially flat at 9,458 (+0.08%); Advantest finished at 32,340, down just 0.09%. Sony gained 1.37% to 4,137, Fast Retailing rose 1.58% to 75,880, and Toyota added 0.68% to 3,105 despite the firmer yen. The clear casualties were the banks — MUFG fell 2.31% to 3,295 as the long end of the JGB curve rallied — while SoftBank Group, sold hard through the session on the global AI valuation pullback, closed down 0.67% at 4,276 after trimming losses.
Sectors and Movers
Only 5 of 17 TOPIX-17 sectors advanced (Nomura NEXT FUNDS ETF proxies, which can deviate slightly from official indices). Rate-sensitive and defensive groups led; financials and cyclicals lagged.
| Sector (ETF proxy) | Day | 5-day |
|---|---|---|
| Real Estate | +2.34% | +4.2% |
| Retail | +0.74% | +0.9% |
| Foods | +0.54% | +0.8% |
| Banks | -2.60% | -6.5% |
| Steel & Nonferrous | -1.78% | -7.9% |
Within our fixed 95-name large-cap universe, the property rally was broad: Mitsubishi Estate gained 2.76% and Mitsui Fudosan 2.23%, both on 1.8x average volume. Aeon (+4.51%) and Shiseido (+3.92%) topped the board. On the downside, TDK fell 5.61%, Hitachi 4.37%, and Disco 3.79% on heavy 2.4x volume — the AI-capex complex taking the brunt — alongside SoftBank Corp (-3.73%) and NEC (-2.94%).
Positioning: Short Ratio Steady, Volatility Stressed
The TSE short-selling ratio — our daily positioning signature — came in at 39.6% of total trading value (31.3% under the price rule plus 8.3% unrestricted) on turnover of JPY 9.92 trillion. That is elevated in absolute terms, signalling a defensive tape, but sits in the middle third of the last eight sessions’ 32.9%–43.2% range, right on the 39.3% average. In other words, shorts were active but did not pile in further into the plunge — consistent with the short-covering seen in the afternoon.
Volatility is the more stretched signal: the Nikkei Volatility Index rose 2.28 points to 38.25, its 96th percentile over the last 930 sessions. Fear is priced; positioning is not extreme.
In Thursday’s JSF data (the latest available, one session lagged), leveraged long demand still dominated the borrow side: margin-buying loans stood at JPY 0.57 trillion against JPY 0.19 trillion of stock lending for shorts. Notably, margin longs added into weakness in the very names under pressure — Tokyo Electron’s margin-loan balance rose 62,200 shares to just over 1 million, and SoftBank Group’s rose 62,500 — while Sony’s stock-lending balance (shares borrowed for shorting) dropped 28,700 shares. Squeeze costs remain widespread: 460 of 1,027 loanable issues (45%) incurred gyaku-hibu premium charges, the extra daily fee shorts pay when borrow is tight.
Among regulatory large short-position disclosures published Friday (880 reports across 610 issues — lagged position filings, not today’s selling), TOWA tops the list at 15.4% of shares outstanding, while INTERTRADE saw the biggest increase at +3.38pp; JSF separately suspended new short applications in INTERTRADE on October 23.
Rates
MOF yields through Thursday showed a long-end rally: the 10-year at 2.914% (-0.9bp), the 30-year at 3.952% (-2.8bp), and the 40-year at 3.959% (-3.5bp), with the 2-year anchored at 1.914%. That bull-flattening is the proximate pain for bank shares — and the tailwind under real estate.
Weekly Flows
MOF cross-border securities data for the week of October 11–17 (designated major reporters; weekly figures, not today’s flows) showed foreign investors as marginal net sellers of Japanese equities at JPY 0.07 trillion, while Japanese residents net bought JPY 0.13 trillion of foreign equities. Directionally, foreign money was stepping back even before this week’s volatility.
What to Watch
- The 200-day line near 61,500 — Friday’s low printed almost on it. A retest on further US tech weakness is the key technical event.
- BOJ signalling after the CPI beat — core-core at 2.5% keeps a year-end hike live; watch how the long end and bank shares digest the next communication.
- Volatility normalization — the Nikkei VI at the 96th percentile against a merely mid-range short ratio; whether that gap closes via calmer prices or more defensive positioning will set next week’s tone.
Disclaimer: This is an information and analysis publication, not investment advice. See our Methodology for data sources, standards, and our corrections policy.