{"dataset":"boj-assets","release":{"release_id":274,"label":"Data through September 2026","latest_period":"2026-09-01","ingested_at":"2026-10-07T05:42:50.759736Z","sha256":"70a7b1fe51450296371d6b16bca8af6537a3dede37947d8af44b2e84a4d29b71","download_url":"https://www.stat-search.boj.or.jp/api/v1/getDataCode?format=json&lang=en&db=MD09&code=MA03021034S,MA030210341S,MA030210022S,MA03021035S,MA030210315S,MA030210316S,MA030210317S,MA03021019S,MA030210314S,MA03021017S,MA03021036S,MA03021033S,MA03021001S,MA03021022S,MA03021024S,MA030210242S,MA03021034F,MA030210341F,MA030210342F,MA030210022F,MA03021035F,MA030210351F,MA030210352F","retrieved_at":"2026-10-07T05:42:50.759736Z","source_name":"BOJ Time-Series Data Search — MD09: Monetary Base and the Bank of Japan's Transactions","source_page":"https://www.stat-search.boj.or.jp/","source_id":"boj:MD09","base":null,"frequency":"monthly","published_at":null,"status":"published","known_at":"2026-10-07T05:42:50.759736Z","known_at_basis":"our fetch","coverage_start":"1996-07-01"},"tiles":[{"key":"holdings","label":"JGB Holdings","series_code":"MA03021034S","series_name":"JGB holdings","type":"level","unit":"¥100mn","value":5040080.0,"delta":-159197.0,"comparison":"vs Aug 2026","trust":"official","calc":"Published value as released, in ¥100mn. Not recomputed."},{"key":"from_peak","label":"From Peak","series_code":"MA03021034S","series_name":"JGB holdings","type":"drawdown","unit":"¥100mn","value":-935392.0,"pct":-15.653859644894997,"peak_period":"2023-11-01","peak_value":5975472.0,"delta":null,"comparison":"vs peak Nov 2023","trust":"derived","calc":"value[latest] − max(value[m]) over all published months m; percent: (value[latest] / max − 1) × 100. From published values."},{"key":"pace_12m","label":"Net Flow, 12m","series_code":"MA03021034F","series_name":"JGBs — net flow","type":"rolling_avg","unit":"¥100mn","value":-42535.75,"window":12,"delta":-854.25,"comparison":"vs the 12-period window ending Aug 2026","trust":"derived","calc":"mean(value[t−(w−1)] … value[t]) over the trailing w published monthly values (w in the tile's 'window' field)."},{"key":"purchases","label":"Gross Purchases","series_code":"MA030210341F","series_name":"JGBs — outright purchases (gross)","type":"level","unit":"¥100mn","value":23172.0,"delta":-40.0,"comparison":"vs Aug 2026","trust":"official","calc":"Published value as released, in ¥100mn. Not recomputed."}],"main_series":[{"role":"headline","label":"BOJ JGB holdings","slot":1,"code":"MA03021034S"},{"role":"purchases","label":"JGB outright purchases (gross)","slot":2,"code":"MA030210341F"},{"role":"redemptions","label":"JGB redemptions","slot":3,"code":"MA030210342F"}],"credit_line":"This service uses the API provided by the 'Bank of Japan Time-Series Data Search.' The Bank of Japan does not guarantee the content of the service.","stale":false,"period_months":1}