Japan Finance Ministry proposes the cut to mid-term JGB liquidity auctions, given improved JGB market functions; proposes reducing 5-11 year liquidity enhancement bond supply

Reductions of this kind have historically been pre-announced through the ministry's consultation with primary dealers and phased in gradually, so the follow-on is the formal calendar revision rather than any immediate supply shock. The affected zone matters: the 5-11 year bucket sits around the belly of the curve, where supply changes interact with the BoJ's own purchase footprint and where off-the-run cheapening has been most visible in past episodes of strained liquidity. Less reissuance supply is mildly supportive for those maturities in isolation, but the read-through runs the other way if it is taken as evidence the authorities see the market as ready to absorb heavier regular issuance or further BoJ normalisation. Worth watching are the dealer meeting readout, the next quarterly issuance plan, and whether off-the-run versus on-the-run spreads validate the ministry's improved-functioning claim.