Nikkei 225 — daily market movers
Macro backdrop
The Nikkei 225 rose 1.26% to close at 65,020.94 on 4 Sep (+806 points), even as TOPIX was roughly flat — a narrow, top-heavy advance led by a handful of tech heavyweights, recovering from the prior day's one-month low. SoftBank (+11.78%) was the single biggest driver after its chip unit Arm gained about 3.3% overnight on AI optimism, dragging the whole AI-semiconductor complex higher; advancers outnumbered decliners (1,989 to 1,446). Wall Street's overnight strength helped, but gains were capped by expectations that the Bank of Japan will raise rates (a firmer yen), in contrast to a cautious Fed. Japanese trading houses reversed the prior session's Berkshire-driven rally, and chemicals and defensives lagged.
Top 10 gainers
| # | Ticker | Company / business | Change | Likely Driver |
|---|---|---|---|---|
| 1 | 9984.T | SoftBank Group Technology investment holding company; owns chip designer Arm and runs the Vision Fund | +11.78% | Surged as chip unit Arm rose ~3.3% overnight on AI optimism; the single biggest driver of the day's index gain. |
| 2 | 6976.T | Taiyo Yuden Makes multilayer ceramic capacitors and other passive electronic components | +6.42% | Rode the AI/semiconductor and electronic-components rally, lifted by SoftBank-led tech buying rather than a standalone catalyst. |
| 3 | 5801.T | Furukawa Electric Produces electrical cables, optical fiber and telecom/energy infrastructure products | +6.39% | Optical-fibre and cable maker buoyed by the AI data-center demand theme amid the broad tech rally. |
| 4 | 4704.T | Trend Micro Develops cybersecurity and enterprise threat-defense software | +6.05% | Cybersecurity name climbed with the technology sector; no clear standalone catalyst identified on the day. |
| 5 | 285A.T | Kioxia Holdings Manufactures NAND flash memory chips and solid-state storage | +5.40% | Memory chipmaker rose with AI-semiconductor buying; part of the day's broad memory/chip strength. |
| 6 | 8697.T | Japan Exchange Group Operates the Tokyo Stock Exchange and Osaka derivatives markets | +4.43% | Exchange operator benefited from surging trading volume and a sharp jump in the Nikkei volatility index. |
| 7 | 6981.T | Murata Manufacturing Leading maker of multilayer ceramic capacitors and RF/electronic components | +4.20% | Electronic-components leader lifted by the AI-chip demand theme and broad tech-sector buying. |
| 8 | 4062.T | Ibiden Makes IC package substrates and printed circuit boards for advanced chips | +3.83% | IC-package-substrate maker rose on the AI-semiconductor theme as a key supplier to high-end chip packaging. |
| 9 | 6479.T | Minebea Mitsumi Produces precision bearings, motors and electronic components | +3.03% | Precision-components maker advanced with the electronics and tech sector; no standalone company news identified. |
| 10 | 3697.T | SHIFT Inc Provides software testing, quality-assurance and IT development services | +2.98% | Software-testing/QA firm rose alongside the technology sector; no clear company-specific catalyst on the day. |
- 1. 9984.T+11.78%SoftBank GroupTechnology investment holding company; owns chip designer Arm and runs the Vision FundSurged as chip unit Arm rose ~3.3% overnight on AI optimism; the single biggest driver of the day's index gain.
- 2. 6976.T+6.42%Taiyo YudenMakes multilayer ceramic capacitors and other passive electronic componentsRode the AI/semiconductor and electronic-components rally, lifted by SoftBank-led tech buying rather than a standalone catalyst.
- 3. 5801.T+6.39%Furukawa ElectricProduces electrical cables, optical fiber and telecom/energy infrastructure productsOptical-fibre and cable maker buoyed by the AI data-center demand theme amid the broad tech rally.
- 4. 4704.T+6.05%Trend MicroDevelops cybersecurity and enterprise threat-defense softwareCybersecurity name climbed with the technology sector; no clear standalone catalyst identified on the day.
- 5. 285A.T+5.40%Kioxia HoldingsManufactures NAND flash memory chips and solid-state storageMemory chipmaker rose with AI-semiconductor buying; part of the day's broad memory/chip strength.
- 6. 8697.T+4.43%Japan Exchange GroupOperates the Tokyo Stock Exchange and Osaka derivatives marketsExchange operator benefited from surging trading volume and a sharp jump in the Nikkei volatility index.
- 7. 6981.T+4.20%Murata ManufacturingLeading maker of multilayer ceramic capacitors and RF/electronic componentsElectronic-components leader lifted by the AI-chip demand theme and broad tech-sector buying.
- 8. 4062.T+3.83%IbidenMakes IC package substrates and printed circuit boards for advanced chipsIC-package-substrate maker rose on the AI-semiconductor theme as a key supplier to high-end chip packaging.
- 9. 6479.T+3.03%Minebea MitsumiProduces precision bearings, motors and electronic componentsPrecision-components maker advanced with the electronics and tech sector; no standalone company news identified.
- 10. 3697.T+2.98%SHIFT IncProvides software testing, quality-assurance and IT development servicesSoftware-testing/QA firm rose alongside the technology sector; no clear company-specific catalyst on the day.
Common Themes
The gainers are overwhelmingly a single technology/AI cluster: SoftBank (via Arm), memory (Kioxia), electronic components (Taiyo Yuden, Murata, Minebea Mitsumi), chip-packaging substrates (Ibiden), AI-data-center cabling (Furukawa Electric), plus software (Trend Micro, SHIFT). SoftBank's Arm-driven surge set the tone and dragged the whole AI-semiconductor supply chain higher, so most of these names moved on the theme rather than on standalone news. Japan Exchange Group is the outlier, lifted by record trading volume and a spike in volatility rather than the AI trade.
Top 10 losers
| # | Ticker | Company / business | Change | Likely Driver |
|---|---|---|---|---|
| 1 | 4005.T | Sumitomo Chemical Diversified chemicals maker spanning petrochemicals, agrochemicals and electronic materials | -5.11% | Chemicals led the decliners as money rotated out of cyclicals into tech; a firmer yen added pressure. No standalone catalyst found. |
| 2 | 8031.T | Mitsui & Co Major sogo shosha (general trading house) in commodities, energy and machinery | -4.45% | Reversed sharply after the prior session's Berkshire-driven rally; profit-taking hit trading houses despite Abel's long-term-holding comments. |
| 3 | 1332.T | Nissui Corp Seafood and marine-products company, also processed and frozen foods | -4.24% | Defensive seafood/food name fell as investors rotated out of defensives into technology; no company-specific catalyst identified. |
| 4 | 4183.T | Mitsui Chemicals Produces basic and performance chemicals, polymers and industrial materials | -3.62% | Fell with the broad chemicals sector as cyclical/value names were sold to fund the rotation into tech. |
| 5 | 4188.T | Mitsubishi Chemical Group Japan's largest chemicals group, spanning performance materials and industrial chemicals | -3.55% | Declined amid sector-wide chemicals weakness and the rotation out of cyclical value stocks. |
| 6 | 8058.T | Mitsubishi Corp Largest Japanese sogo shosha, trading in energy, metals, machinery and food | -3.10% | Trading-house peer reversed lower on profit-taking after the prior session's Berkshire-driven surge. |
| 7 | 9531.T | Tokyo Gas Japan's largest city-gas utility, supplying gas and power to the Tokyo region | -3.08% | Defensive utility rotated out of as funds moved into tech; also pressured by BOJ rate-hike and yen expectations. |
| 8 | 5711.T | Mitsubishi Materials Non-ferrous metals, copper, cement and advanced materials producer | -3.08% | Non-ferrous-metals and materials name fell with cyclical, commodity-linked stocks amid a firmer yen. |
| 9 | 9104.T | Mitsui O.S.K. Lines Global shipping company operating tankers, bulkers and container vessels | -3.07% | Shipping cyclical dropped as value/cyclical names were sold; a stronger yen weighs on export-linked earnings. |
| 10 | 2269.T | Meiji Holdings Food, confectionery and dairy maker with a pharmaceuticals arm | -2.93% | Defensive food/confectionery-and-pharma name declined in the rotation out of defensives into technology. |
- 1. 4005.T-5.11%Sumitomo ChemicalDiversified chemicals maker spanning petrochemicals, agrochemicals and electronic materialsChemicals led the decliners as money rotated out of cyclicals into tech; a firmer yen added pressure. No standalone catalyst found.
- 2. 8031.T-4.45%Mitsui & CoMajor sogo shosha (general trading house) in commodities, energy and machineryReversed sharply after the prior session's Berkshire-driven rally; profit-taking hit trading houses despite Abel's long-term-holding comments.
- 3. 1332.T-4.24%Nissui CorpSeafood and marine-products company, also processed and frozen foodsDefensive seafood/food name fell as investors rotated out of defensives into technology; no company-specific catalyst identified.
- 4. 4183.T-3.62%Mitsui ChemicalsProduces basic and performance chemicals, polymers and industrial materialsFell with the broad chemicals sector as cyclical/value names were sold to fund the rotation into tech.
- 5. 4188.T-3.55%Mitsubishi Chemical GroupJapan's largest chemicals group, spanning performance materials and industrial chemicalsDeclined amid sector-wide chemicals weakness and the rotation out of cyclical value stocks.
- 6. 8058.T-3.10%Mitsubishi CorpLargest Japanese sogo shosha, trading in energy, metals, machinery and foodTrading-house peer reversed lower on profit-taking after the prior session's Berkshire-driven surge.
- 7. 9531.T-3.08%Tokyo GasJapan's largest city-gas utility, supplying gas and power to the Tokyo regionDefensive utility rotated out of as funds moved into tech; also pressured by BOJ rate-hike and yen expectations.
- 8. 5711.T-3.08%Mitsubishi MaterialsNon-ferrous metals, copper, cement and advanced materials producerNon-ferrous-metals and materials name fell with cyclical, commodity-linked stocks amid a firmer yen.
- 9. 9104.T-3.07%Mitsui O.S.K. LinesGlobal shipping company operating tankers, bulkers and container vesselsShipping cyclical dropped as value/cyclical names were sold; a stronger yen weighs on export-linked earnings.
- 10. 2269.T-2.93%Meiji HoldingsFood, confectionery and dairy maker with a pharmaceuticals armDefensive food/confectionery-and-pharma name declined in the rotation out of defensives into technology.
Common Themes
Three overlapping threads run through the losers. First, the sogo shosha trading houses (Mitsui, Mitsubishi Corp) unwound the prior session's Berkshire-driven pop on profit-taking. Second, chemicals and materials cyclicals (Sumitomo Chemical, Mitsui Chemicals, Mitsubishi Chemical Group, Mitsubishi Materials) were sold as part of a rotation out of value. Third, defensives (Tokyo Gas, Nissui, Meiji Holdings) and shipping (Mitsui O.S.K. Lines) were rotated out of. A firmer yen on Bank of Japan rate-hike expectations added pressure on exporters and commodity-linked names. None of the decliners showed a clear standalone company catalyst — the moves are rotation-driven.
Overall read
Money rotated decisively into AI and technology and out of value, cyclicals and defensives. Even though the Nikkei closed up 1.26%, that advance was narrow and top-heavy — driven by a handful of tech heavyweights led by SoftBank — while TOPIX was roughly flat, showing the breadth was thin. The Berkshire-fueled trading-house trade unwound, and Bank of Japan rate-hike and yen-strength expectations weighed on exporters and commodity-linked cyclicals.