Japan's 10-year yield briefly climbed to a level unseen in about thirty years after the BOJ raised its policy rate.

Sovereign funding costs are repricing at the long end across very different credits, and the common cause is the tenor itself rather than the macro cycle. Slovenia's harmonised long-term convergence yield now sits above the coupon on its RS98 bond due 2036, so the cost of that outstanding paper rises even as real GDP growth runs at 5%; the Kyrgyz Republic cleared 10-year paper above its announced coupon, a gap that prices its first extension into that tenor. Japan sits at the extreme of the same mechanism: the 10-year briefly rose past a level last seen about three decades ago after the BOJ raised its policy rate, and the Ministry of Finance is now running bill auctions without disclosing a cut-off, leaving the market to infer the funding cost from settlement flows. India is doing the opposite — extending its curve to 50-year paper while holding weekly auction sizes in a narrow band, and pricing the Centre's intra-year cash gap through the Ways and Means Advances ceiling. Denmark shows the balance-sheet version: a second-quarter surplus in the mid-thirty-billions of kroner alongside EMU debt at 27% of GDP, because longer-dated issuance and short-term municipal borrowing lifted the stock in the same quarter that equity revaluations cut public financial net worth.