Japan Yield Curve
24 Sep 1974 – 9 Oct 2026

Japanese government bond yields · CSV and JSON

Downloads

Free, no account. Every file carries its dates, and each comes with a metadata file stating its source, licence, units and coverage. A missing quote is an empty cell, never zero.

  1. Full history, every maturity

    Every business day from 1974-09-24 to 2026-10-09: 13,316 sessions, fifteen maturities from 1 to 40 years. One row per date.

    Download full history (CSV) ↓ metadata

  2. Latest session

    All fifteen maturities on 2026-10-09, one row per maturity.

    Latest session (CSV) ↓ · Latest session (JSON) ↓

    Every file on this page keeps the same address and is rebuilt each business day.

  3. One maturity

  4. Your own range and maturities

    Pick dates and up to six maturities on Historical yields, then download what the chart shows. The yield curve exports the dates you compare. These chart downloads can include the Bank of Japan's overnight call rate (O/N); when they do, a column gives the date each O/N value was published.