Regional market · Japan
The Japanese Securities Finance Market: Equities & JGB Repo
Japan is one of the largest and most mature securities finance markets in Asia. It combines a deep equity lending market in Tokyo-listed stocks with a large Japanese Government Bond (JGB) repo market that is closely tied to Bank of Japan policy.
Last reviewed 27 October 2026
Equity lending in Tokyo
Large domestic and overseas institutions lend Japanese equities through custodian and third-party agent programmes. Borrow demand is driven by hedge fund short selling, convertible bond arbitrage and index or ETF related activity. Japanese corporate calendars concentrate many annual general meetings in late June, so recall planning around record dates is a recurring operational theme.
Domestically, retail margin trading (seido shinyo) is supported by a separate standardised loan market operated through securities finance companies. Institutional lending sits alongside it rather than replacing it.
JGB repo structures
Cash-collateralised bond lending
Historically the dominant form of JGB repo in Japan: bonds are lent against cash collateral, with the economics expressed as a lending fee and a rebate on the cash.
Gensaki (repurchase agreements)
A sale-and-repurchase structure closer to the global repo model. Market reforms over the past two decades encouraged greater use of gensaki, aligned with international documentation.
Central clearing
A significant share of JGB repo is centrally cleared through the domestic clearing house, which provides multilateral netting and supports settlement cycle shortening.
Bank of Japan policy implications
Large-scale BoJ bond purchases reduced the free float of certain JGB issues for years, making some bonds scarce in repo. The BoJ operates a securities lending facility that can supply specific issues to the market to ease shortages. As policy normalises, practitioners watch repo rates, specials and the size of BoJ holdings for changes in collateral availability.
Cross-currency funding
Japanese investors are significant holders of foreign bonds and frequently fund them through FX swaps and USD repo. Offshore borrowers in turn use JGBs as high-quality collateral, sometimes swapping yen proceeds back into dollars. The interaction between yen funding costs and cross-currency basis matters for both lenders and borrowers.
Regulatory points to check
- Short selling rules set by the Financial Services Agency, including uptick-style restrictions in certain conditions and short position reporting to the regulator with public disclosure above a higher threshold.
- Naked short selling restrictions on exchange-traded transactions.
- Tax treatment of manufactured dividends for overseas lenders under relevant treaties.