From Washington to Tokyo: The Bond Selloff Goes Global

1 One selloff, many markets

On September 24, 2026 the selloff stopped being an American story. Reuters, via LSE.co.uk, reported world markets remained on edge after Iran-war and inflation concerns drove the sharpest slide in U.S. Treasuries and other benchmark government bonds since last year's tariff turmoil. Oil moved back above 105 dollars a barrel, traders awaited a Trump-Xi meeting in Washington, and the 10-year U.S. Treasury yield touched a new post-financial-crisis high of 5.145%.

2 The drivers every market shares

AXA chief economist Gilles Moec told Reuters the combination is high inflation, hawkish central bankers, competition from the funding needs of the tech sector, and no reassuring signs on the U.S. debt trajectory. Energy prices raised by the Iran war feed the first; heavy government issuance feeds the last. Strong PMI data and a weak U.S. government bond sale compounded Wednesday's rout, and Germany's 10-year Bund briefly rose above 3.5%.

3 Japan's leg of the move

CNBC reported the same day that Japan's 10-year JGB yield rose 8 basis points to 3.055%, the highest since August 1996, while the 30-year climbed nearly 7 basis points to 4.134%. The Bank of Japan had raised its policy rate to a 31-year high the previous week. UOB attributed the move to rebounding oil, stronger U.S. PMI data, and weak demand at a 70 billion dollar 5-year Treasury auction.

4 The repatriation mechanism

Japan has long been a colossal exporter of capital, with its insurers and pension funds holding large overseas bond positions. When domestic JGB yields rise while hedging costs stay high, the hedged-return advantage of Treasuries can shrink or vanish, and liability-driven funds rebalance against domestic duration. If that reallocation happened at scale it could reduce marginal demand for Treasuries. Every sentence there describes a channel, not an event.

5 Mechanism is not evidence

The reporting does not establish that repatriation is happening. Nothing in the September 24 accounts shows Japanese investors net-selling Treasuries, or that such selling drove the U.S. move. The transaction evidence would appear in U.S. Treasury International Capital data and in flow-of-funds reporting; until those print, repatriation is a hypothesis with a plausible path, not a finding.

6 Bottom line

The selloff has shared drivers: energy prices, sticky inflation, hawkish central banks, heavy issuance, and tech-sector demand for savings. Japan's 3.055% 10-year and a 31-year-high BoJ policy rate are demonstrated facts; that Japanese capital is coming home is a mechanism the reporting describes but does not demonstrate.