Japan's 30-year bond yield notched a record high to hit 3.286%, up 100 basis points this year, while yield on the 20-year debt is at its highest since 1999 at 2.695%.

Japan's 30-year bond yield notched a record high to hit 3.286%, up 100 basis points this year, while yield on the 20-year debt is at its highest since 1999 at 2.695%.

Several 30-year yields hit multi-decade highs this week, with analysts pointing to ongoing fiscal and monetary concerns as well as supply dynamics.