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

Global bond yields are rising on fiscal concerns, but the U.K. long-end faces further specific challenges.

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.

A global bond rout is underway, but gold prices, which typically suffer when yields rise, have surged to new highs.

As government borrowing costs tick higher, mortgages and corporate activity come under pressure.