Japan 40-year bond yield rises 6.5 bps to 4.04%

The yield on Japan’s 40-year government bond rose by 6.5 basis points to 4.04% on May 11, 2026, reflecting continued investor sensitivity to global economic developments and monetary policy expectations. This increase follows a slight decline to 3.98% on May 8, 2026, as reported by Trading Economics. Over the past month, the yield has increased by 10 basis points and stands 59 basis points higher than a year ago. The bond yield reached an all-time high of 4.23% in January 2026.

Recent market activity shows a yield of 3.859% as of the latest CNBC update, with the bond trading at a price of 88.169 and a coupon rate of 3.10%. The bond is set to mature on March 20, 2065. Analysts and macroeconomic models suggest the yield is expected to decline to 3.82% by the end of the quarter and further to 3.56% in 12 months.

The movement in long-term bond yields is being closely watched as global geopolitical tensions and inflationary pressures influence investor sentiment and central bank policy considerations.