BoJ's JPY 520.3tn government securities holdings in September

Central Bank Asset Composition as of September 2026

The Bank of Japan's balance sheet, published on 25 September 2026 for the accounts as of 20 September, reported total assets of JPY 641,281,336,654 thousand (JPY 641.28 trillion). The largest component of these assets comprised Japanese government securities, valued at JPY 520,302,562,290 thousand (JPY 520.3 trillion).

This figure indicates the central bank's substantial presence in the domestic bond market, a key element of its monetary policy framework. The scale of these holdings reflects the Bank of Japan's continued efforts to manage market liquidity and influence long-term interest rates through asset purchases, maintaining its accommodative stance.

Diversified Asset Portfolio Beyond Government Bonds

Beyond government securities, the Bank of Japan's asset portfolio included other significant categories as of 20 September 2026. Corporate bonds were recorded at JPY 1,122,393,850 thousand (JPY 1.12 trillion), showing a focused, albeit smaller, involvement in corporate debt markets.

Pecuniary trusts, which include index-linked exchange-traded funds (ETFs), stood at JPY 36,962,211,233 thousand (JPY 36.96 trillion). Additionally, pecuniary trusts holding Japan real estate investment trusts (J-REITs) were also noted, although a specific value was not provided for this sub-category in the summary.

Loans, excluding those to the Deposit Insurance Corporation, amounted to JPY 68,418,500,000 thousand (JPY 68.42 trillion), representing direct credit provision to the financial system. Foreign currency assets were JPY 11,913,717,696 thousand (JPY 11.91 trillion), reflecting the bank's international reserves and operations.

Bank of Japan's Liability Structure

On the liabilities side of the balance sheet as of 20 September 2026, current deposits held at the Bank of Japan formed the largest category, totalling JPY 410,252,761,007 thousand (JPY 410.25 trillion). These deposits primarily represent the reserves held by financial institutions at the central bank, reflecting the operational liquidity within the banking system.

Other deposits, including those from foreign central banks, amounted to JPY 43,562,687,405 thousand (JPY 43.56 trillion). Deposits of the government were JPY 16,540,061,573 thousand (JPY 16.54 trillion), while payables under repurchase agreements stood at JPY 40,401,885,551 thousand (JPY 40.40 trillion).

Legal and special reserves, which contribute to the bank’s capital base, were reported at JPY 10,956,633,388 thousand (JPY 10.96 trillion), with coins reserved for circulation at JPY 3,872,243,310 thousand (JPY 3.87 trillion).

Loan Support Programme Engagements

The Bank of Japan's accounts for 20 September 2026 also detailed outstanding amounts under its various loan support programmes. The Fund-Provisioning Measure to Stimulate Bank Lending showed an outstanding balance of JPY 35,664,500,000 thousand (JPY 35.66 trillion).

This initiative aims to encourage financial institutions to increase their lending activities, supporting economic growth.

Additionally, a combined figure for loans under Funds-Supplying Operations against Pooled Collateral, Funds-Supplying Operation to Support Financial Institutions in Disaster Areas, and Funds-Supplying Operations to Support Financing for Climate Change Responses amounted to JPY 32,754,000,000 thousand (JPY 32.75 trillion).

These programmes collectively demonstrate the central bank's role in providing targeted liquidity and credit support to specific sectors and policy objectives within the Japanese economy.

Implications for Japan's Monetary Policy Trajectory

The Bank of Japan's balance sheet as of 20 September 2026 reveals the sustained scale of its asset purchase programmes and lending facilities. The substantial holdings of Japanese government securities, at JPY 520.3 trillion, continue to anchor the long end of the yield curve and maintain ample liquidity in the financial system.

For investors and financial institutions in Asia, these figures indicate the Bank of Japan's ongoing commitment to its current monetary policy framework, which influences capital flows and asset valuations across the region.

The next key data point for assessing any shifts will be the Bank of Japan's next accounts release, typically published around the 25th of each month for the preceding week's figures, which will offer further insight into the central bank's balance sheet evolution and its implications for market conditions.