Japan Securities Finance (JSF)
ConfidenceLikelyUpdated2026-07-29Review by2026-10-27Sources3Machine-translatedOriginal (JA)
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This entry sits under financial-regulators INDEX. Read it against Japan Exchange Group (JPX) for peer / contrast context and securities index for the broader system / regulatory boundary.
TL;DR
Japan Securities Finance is Japan’s listed securities-finance company and a key wholesale layer behind margin trading, stock lending, and securities financing. Official company materials define its business as securities finance under the Financial Instruments and Exchange Act, including loan transactions, securities finance, and securities investment operations.
For FinWiki, JSF links retail margin trading, institutional stock lending, broker funding, and PTS / exchange settlement plumbing on the securities side, with peers like Matsui Securities and infrastructure adjacency to JSCC central clearing.
1. Company overview
| Item | Reading |
|---|---|
| Legal name | Japan Securities Finance Co., Ltd. |
| Japanese name | 日本証券金融株式会社 |
| Short name | 日証金 / JSF |
| Founded | 1927-07 |
| Securities-finance business start | 1950-02 |
| Capital | 10.0 billion yen |
| Listing | Tokyo Stock Exchange Prime Market |
| Core business | Securities finance under the FIEA |
Sources: ^[Japan Securities Finance company profile: https://www.jsf.co.jp/ja/about/outline.html; FSA financial-instruments operator workbook: https://www.fsa.go.jp/menkyo/menkyoj/kinyushohin.xlsx.]
2. Business segment map
| Layer | Function |
|---|---|
| Loan transactions | Standardized financing and stock-lending layer for margin transactions. |
| Securities finance | Lending, borrowing, and collateralized finance tied to listed securities. |
| Securities investment | Investment and treasury operations. |
| Trust-bank adjacency | JSF group includes trust-bank functions through Nisshokin Trust Bank. |
Sources: ^[Japan Securities Finance company and investor-relations pages: https://www.jsf.co.jp/ja/about/outline.html; https://www.jsf.co.jp/ja/ir.html.]
3. Strategy and competition
JSF is a quiet infrastructure company. Its importance rises when:
- retail margin trading expands;
- stock lending and short-selling demand increase;
- PTS markets require borrow / lend and clearing-linked settlement support;
- collateral and securities-finance conditions become stress indicators.
4. Regulation and policy
JSF operates in the securities-finance layer of the FIEA ecosystem. It is not an exchange, but it is tightly connected to exchange-market liquidity, margin regulation, broker risk management, and securities lending.
Related
- tokyo-stock-exchange
- japannext-securities
- osaka-digital-exchange
- japan-securities-clearing-corp
- matsui-sec
- rakuten-securities
Sources
- Japan Securities Finance: Company outline.
- Japan Securities Finance: IR materials.
- FSA: Financial instruments business operator list.
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