October 7, 2026 2026年10月7日 Monetary Affairs Department 日本銀行企画局 Bank of Japan

マネタリーベースと日本銀行の取引（2026年9月） Monetary Base and the Bank of Japan's Transactions (September 2026) ①ストック表 （末残、億円）

1. Stock Table (amounts outstanding as of the end of the month; 100 million yen)

26/7月 8月 9月 Jul. 2026 Aug. Sep. 長期国債 (a) 5,193,819 5,199,277 5,040,080 Japanese Government Bonds (JGBs) (a) 買入等 (b) 5,193,819 5,199,277 5,040,080 Outright Purchases (b) その他 (c) 0 0 0 Other JGB Transactions (c) 対政府 長期国債売現先 (-) (e) -224,951 -373,738 -275,528 Sales of JGBs to the Government under Repurchase Agreements (-) (e) 国庫短期証券 (g) 0 0 0 Treasury Discount Bills (g) 引受 (h) 0 0 0 Underwriting (h) 買入 (i) 0 0 0 Outright Purchases (i) 売却 (-) (j) 0 0 0 Outright Sales (-) (j) 対政府ネット売却 (-) (k) 0 0 0 Net Outright Sales to the Government (-) (k) 国債買現先 (p) 0 0 0 Purchases of Japanese Government Securities (JGSs) under Repurchase Agreements (p) 国債売現先 (-) (q) 0 0 0 Sales of JGSs under Repurchase Agreements (-) (q) 共通担保オペ (G) 78,038 78,040 78,035 Funds-Supplying Operations against Pooled Collateral (G) 固定金利方式 Fixed-Rate Method 8,003 8,005 0

変動金利方式 Floating-Rate Method ― ― 8,000

ＣＰ買現先 (t) 0 0 0 Purchases of CP under Repurchase Agreements (t) 手形売出 (-) (u) 0 0 0 Outright Sales of Bills Drawn by the Bank of Japan (-) (u) 被災地金融機関支援オペ (aa) 130 117 117 Funds-Supplying Operation to Support Financial Institutions in Disaster Areas (aa) 気候変動対応オペ (ab) 249,361 249,361 249,361 Climate Response Financing Operations (ab) 貸出支援基金 Loan Support Program 391,059 391,059 356,645

貸出増加支援資金供給 (W) 391,059 391,059 356,645 Fund-Provisioning Measure to Stimulate Bank Lending (W) 社債等 (K) 14,396 13,577 10,704 Corporate Bonds (K) 金銭の信託（信託財産ＥＴＦ）(L) 370,099 369,835 369,558 Pecuniary Trusts (Index-Linked Exchange-Traded Funds [ETFs] Held as Trust Property)(L) 金銭の信託（信託財産Ｊ－ＲＥＩＴ）(M) 6,516 6,510 6,506 Pecuniary Trusts (Japan Real Estate Investment Trusts [J-REITs] Held as Trust Property) (M) 貸出等 Loans and Discounts 2 2 2

33条貸出 (w) 0 0 0 Loans Pursuant to Article 33 of the Bank of Japan Act (w) 預金保険機構貸付金等 (y) 2 2 2 Loans to the Deposit Insurance Corporation (DIC) and Others (y) 預金保険機構貸付金 (z) 0 0 0 Loans to the DIC (z) 国債補完供給 (-) (A) -506 -438 -980 Securities Lending as a Secondary Source of JGSs (-) (A) ①ストック表＜続き＞ （末残、億円）

1. Stock Table (Continued)

(amounts outstanding as of the end of the month; 100 million yen) 26/7月 8月 9月 Jul. 2026 Aug. Sep. 米ドルオペ用担保国債供給 (-) (Y) 0 -3 0 Securities Lending to Provide JGSs as Collateral for the U.S. Dollar Funds-Supplying Operations (-) (Y) 政府預金 (-) (C) -73,350 -92,555 -52,367 Deposits of the Government (-) (C) その他 (D) -428,895 -403,392 -427,919 Others (D) マネタリーベース Monetary Base 5,575,718 5,437,652 5,354,214

日本銀行券発行高 Banknotes in Circulation 1,149,807 1,148,673 1,142,474

貨幣流通高 Coins in Circulation 45,789 45,759 45,787

日銀当座預金 Current Account Balances 4,380,122 4,243,220 4,165,953

準備預金 (F) 4,028,129 3,905,362 3,849,859 Reserve Balances (F) マネタリーベース Monetary Base 5,575,718 5,437,652 5,354,214

②フロー表 （月中増加・減少額 <->、億円）

1. Flow Table

(changes during the month; 100 million yen) 26/7月 8月 9月 Jul. 2026 Aug. Sep. 長期国債 (a) 10,395 5,458 -159,197 Japanese Government Bonds (JGBs) (a) 買入 (b) Outright Purchases (b) 23,386 23,212 23,172

その他 (c) Other JGB Transactions (c) 0 0 0

償還等 (-) (d) Redemptions (-) (d) -12,991 -17,754 -182,369

国庫短期証券 (a) 0 0 0 Treasury Discount Bills (a) 引受 (h) Underwriting (h) 0 0 0

買入 (i) Outright Purchases (i) 0 0 0

売却 (-) (j) Outright Sales (-) (j) 0 0 0

対政府ネット売却 (-) (k) Net Outright Sales to the Government (-) (k) 0 0 0

償還等 (-) (m) Redemptions (-) (m) 0 0 0

上記以外のフロー計数は、ストック表の計数の前月差により算出可能。 The flow data which is not shown in Flow Table can be obtained by calculating the month-on-month difference in the stock data. 計数の定義は下記注釈を参照。なお、各項目に付された英字記号は同注釈の(1)ストック表（月末）4．および(2)フロー表（月中）2．の記号と対応している。 The definitions of the figures are shown in Notes as below. The alphabetic symbol attached on each item indicates the symbol in Notes (see (1) Stock Table (End of Month) 4. or (2) Flow Table (During Month) 2.).

注釈 https://www.boj.or.jp/statistics/outline/note/notest1.htm/#cdab0130 Notes https://www.boj.or.jp/en/statistics/outline/note/notest1.htm/#cdab0130

本件に関する照会先：日本銀行企画局企画調整課（post.mad9@boj.or.jp） For further information, please contact the Monetary Affairs Department, Bank of Japan, by e-mail (post.mad9@boj.or.jp).