Japan’s government bond market is facing a sharp selloff as yields jump across the curve. Long-dated Japanese government bonds have seen particularly steep moves: the 30-year JGB yield approached 4%, a level not observed since the instrument’s 1999 debut, while the 40-year yield climbed to about 4.24%. The 10-year yield has risen to roughly 2.38%, its highest in decades.
The numbers
The rout has been pronounced. In recent trading the 30-year yield rose by roughly 30 basis points to about 3.92%, and over the past year the 30-year yield is up roughly 1.27 percentage points. These moves follow a long period in which the Bank of Japan kept the 10-year yield effectively capped at 0.5% under its yield-curve control policy. Long-term yields now exceed 4% in places, a very different regime from the era of near-zero rates.
Why it matters for Japan
Japan’s public debt burden is large — the debt-to-GDP ratio is around 230% — and borrowing costs that were manageable near zero become more challenging as long-term yields rise. Higher yields increase debt-servicing costs and complicate fiscal math, particularly if higher rates prove persistent.
Global spillovers
Japan is the world’s largest net foreign creditor, holding roughly $5 trillion in overseas assets. Japanese institutional investors have been major buyers of U.S. Treasuries, European sovereigns, and global corporate bonds for decades. Now that JGB yields look more attractive by historical standards, there is a strong incentive for some capital to return home.
The Government Pension Investment Fund, the world’s largest pension fund with about $1.8 trillion in assets, is reassessing its bond allocations. Even modest repatriation of foreign bond holdings by GPIF and similar institutions could reduce demand for U.S. and European bonds and push yields higher outside Japan.
Implications for risk assets and crypto
Rising global bond yields tighten financial conditions and can sap liquidity for speculative assets. Crypto markets are particularly sensitive to changes in liquidity and risk appetite: periods of abundant liquidity have tended to support rallies, while tighter conditions have pressured prices. If Japanese capital flows back into higher-yielding JGBs and forces U.S. Treasury yields up, the Federal Reserve’s policy choices become more complex, since rate moves driven by global portfolio shifts differ from those driven by domestic inflation.
Disclosure: This article was edited by the Editorial Team.