Japanese government bond yields have surged to their highest levels in 30 years, intensifying scrutiny of the Bank of Japan’s monetary policy trajectory.

The sharp rise in borrowing costs has ignited a debate among market participants and analysts over whether the central bank is moving too slowly to normalize policy, effectively falling behind the curve as inflation expectations and wage growth solidify.

The yield spike reflects a broader repricing of risk in global fixed-income markets.

Investors are increasingly skeptical of the BoJ’s cautious approach, betting that further tightening is inevitable to anchor inflation expectations.

This sentiment has driven selling pressure across JGB tenors, pushing yields to levels not seen since the early 1990s.

The development comes amid a wider global bond selloff.