BoJ open market operations

Wiki route

This entry sits under money-market index. Read it against JGB repo market in Japan for peer / contrast context and Japan money market for the broader system / regulatory boundary.

TL;DR

Open market operations are the Bank of Japan’s main implementation tool for money-market control. Under the policy guideline decided at Monetary Policy Meetings, the BoJ supplies or absorbs funds by lending against collateral, buying or selling securities, conducting repo-style operations, and using other market-operation facilities.

For FinWiki, this page is the mechanics layer under boj-monetary-policy and japan-money-market.

Operation Types

The BoJ’s own explanation divides open market operations into two broad directions:

The exact operation menu changes with the policy regime. Always verify the current official BoJ operation page before using this page for trade-level or current-rate analysis.

Why Operations Matter

Market operations translate policy into balance-sheet reality:

• They affect current-account balances at the BoJ.
• They influence the uncollateralized overnight call rate and other short funding prices.
• They affect JGB market liquidity and dealer inventory conditions.
• They change collateral demand and the relative attractiveness of repo / call funding.
• They determine which institutions have operational contact with the BoJ as counterparties or account holders.

JapanFG Relevance

Use these internal anchors:

• mufg, smfg, mizuho-fg
• mizuho-securities, mufg-mums
• tokyo-tanshi, central-tanshi, ueda-yagi-tanshi
• local-bond-market

Reading Checklist

When reading a BoJ operation result, capture:

1. operation type;
2. offer amount and accepted amount;
3. rate / yield terms if disclosed;
4. maturity / duration;
5. eligible collateral or securities;
6. whether the operation supplies or absorbs funds;
7. relationship to the current MPM guideline.

Related

• money-market INDEX
• japan-money-market
• call-market-structure
• boj-monetary-policy
• local-bond-market
• INDEX
• FinWiki index

Sources

• Bank of Japan: What types of open market operations does the Bank conduct?
• Bank of Japan: What are market operations?
• Bank of Japan: Money Market.
• Bank of Japan: 2024年度の金融市場調節.