Japanese Repatriation Wave: Tokyo Dumps $30B Treasuries as JGBs Hit 4%

Global capital is flashing a déjà-vu to the 1994 “Great Bond Massacre,” when synchronized yield spikes from the U.S. to Europe erased over US$1 trillion in bond value and upended carry trades. Japan’s current move fits a longer arc: three decades of zero-rate policy fostered the world’s biggest outbound savings flow; now, as the BOJ exits that regime and Japan’s debt-to-GDP sits near 230%, even a 1-point uptick re-prices risk everywhere. The last time a major creditor nation reversed course—Britain in the late 1890s diverting capital from Argentina back home—global borrowing costs reset for a generation. If Japanese institutions ultimately divert just 10% of their US$5 trillion overseas book, the marginal buyer of Treasuries and European debt disappears, forcing higher yields irrespective of Fed or ECB intentions. Whether this is a blip driven by the Iran-oil shock or a structural demographic scramble for safer yen assets will determine if 2026 becomes a footnote—or the year the post-2008 era of plentiful dollar funding truly ended.