Tokyo shares turned a frightening morning into a firm finish. After opening lower and sliding almost 1,000 points to a one-month intraday low of 66,268.60, the Nikkei 225 reversed course and closed at 67,743.50, up 0.74% (about +500 points) at Tuesday’s close. The broader TOPIX proxy (1306 ETF) added 0.84% to 421.30. The rebound came on late-session bargain-hunting, echoing a similar recovery in South Korea’s KOSPI, and it was hard-won: total TSE trading value was a robust JPY 11.52 trillion.
What Drove the Session
Early weakness tracked Wall Street’s tech-led decline — the S&P 500 fell 0.79% to 7,515.34 at Monday’s US close — and was amplified by escalating US-Iran tensions and reports of a US-led blockade of the Strait of Hormuz. Brent crude rose roughly 1.7% to near $85 a barrel, pressuring sentiment before the afternoon turn. Semiconductor and AI names, sold off at the open, saw significant buybacks into the close.
Among large caps, the recovery was led by SoftBank Group (9984) +3.30%, Advantest (6857) +3.31%, Sony (6758) +1.26%, MUFG (8306) +1.67% and Toyota (7203) +1.18%. Not everything joined: Fast Retailing (9983) fell 1.77%, Tokyo Electron (8035) slipped 0.24%, and Keyence (6861) lost 1.71%. The day’s most violent move was industrial-robot maker Yaskawa (6506), down 8.98% on 4.8x its 20-day average volume — a reminder that the machinery complex stayed weak even as the index recovered. Panasonic (6752) dropped 5.57%.
Sectors and Movers
Only 4 of 17 sectors advanced on the day (TOPIX-17 ETF proxies, which may deviate slightly from the official sector indices). IT & Services, Others led at +0.84%, with Raw Materials & Chemicals (+0.81%) and Power & Gas (+0.67%) close behind. The laggards clustered in Energy Resources (-1.72%), Transport & Logistics (-1.65%) and Pharmaceuticals (-1.63%). Within a fixed universe of 95 tracked large caps, cosmetics maker Shiseido (4911) rose 5.11%, shipper Kawasaki Kisen (9107) +4.73%, INPEX (1605) +3.92% on higher oil, TEPCO (9501) +3.67% and Oriental Land (4661) +3.58% on 2.3x volume.
Yen and JGBs
The yen stayed defensive, with USD/JPY at 162.34 (+0.28%), holding in the lower-162 range near multi-decade lows as investors awaited US CPI. In rates, the belly and front cheapened modestly — the 10-year JGB yield rose 2.5bp to 2.786% (MOF, 2026-07-13) — while the super-long end richened, with the 40-year down 3.0bp to 3.861%, a mild flattening. The Nikkei Volatility Index eased 1.84 to 35.39, but that still sits in the 94th percentile of the last 863 sessions — a stressed reading consistent with the intraday whipsaw.
Positioning
The TSE short-selling ratio was 34.5% of trading value on Tuesday (price-rule restricted 24.4% + unrestricted 10.1%). Elevated readings signal defensive, hedge-heavy tape; this one, however, sits in the lower third of the last eight sessions (range 32.8%-43.0%, average 37.7%), so short-side pressure was actually lighter than recent norms even as the index gyrated — more capitulation-buying than fresh shorting.
Squeeze costs stayed broad: 478 of 1,019 loanable issues (47%) carried a gyaku-hibu premium (an extra daily cost borne by short sellers), with mono AI technology (5240) hit by a top-rate 10x loan-transaction measure notified 2026-07-13. From JSF standardized margin data (2026-07-13, the prior session): stock-lending (short-side) balances rose in MUFG (+68,100 shares) but fell in SoftBank (-40,800), whose leveraged margin-buy balance also dropped 70,100 — consistent with covering. Advantest saw leveraged long demand build (margin buying +28,300). Separately, JPX’s large short-position disclosures — regulatory position filings reported with a lag, not today’s selling — showed 840 reports across 591 issues, led by INTERTRADE (3747) at 12.6% and Asgent (4288) at 10.6%; the biggest shift was ReYuu Japan (9425), trimmed 1.80 points.
Weekly Flows
For the reference week of 29 June–3 July 2026 (JPX Prime, published with a lag — not today’s flows), foreign investors were net sellers of JPY 1.21 trillion while individuals net bought JPY 0.91 trillion. An independent MOF cross-border read for 28 June–4 July concurs on direction: foreigners net sold JPY 0.02 trillion of Japanese equities, while Japanese residents net bought JPY 0.82 trillion of foreign equities. Retail leverage was little changed — margin buying stood at JPY 6.73 trillion (-0.01T w/w) against margin selling of JPY 0.80 trillion as of 10 July.
What to Watch
- Oil and the Hormuz headlines. With Brent near $85 and select oil/shipping stocks such as INPEX and Kawasaki Kisen outperforming, any de-escalation or further blockade news will drive the risk tone directly.
- US CPI and the yen. USD/JPY at 162.34 near 40-year lows leaves the currency — and exporters — hostage to the US inflation print and BOJ commentary into the July meeting.
- Whether shorts re-engage. A 34.5% short-sell ratio in the lower third of its recent range, alongside broad 47% gyaku-hibu breadth, means squeeze fuel remains if buyers press; a jump back toward the ~38% average would flag renewed defensiveness.
This briefing is informational and is not investment advice.
Disclaimer: This is an information and analysis publication, not investment advice. See our Methodology for data sources, standards, and our corrections policy.