Inflation concerns compounded with expectations that the Federal Reserve will cut rates have led Japan’s 10-year government bond yields to rise to a 27-year high.

Japan’s long-term government bond yields continue to climb, triggering a cross-border liquidity contraction. As the unrealized losses of Japanese financial institutions keep expanding, capital repatriation pressure is pushing risk assets into being sold off.

Japan’s 10-year government bond yield rose by 4 basis points (bps) on Monday to 2.424%, the highest level in 27 years.** The reason is a multi-layer overlap of factors: last Friday’s U.S. nonfarm payrolls data weakened expectations for Fed rate cuts, persistent inflation pressure stemming from the Iran–U.S. conflict, and concerns about Japan’s fiscal expansion.**

Japanese domestic banks, life insurance companies, and pension institutions together hold about 390 trillion yen (about $2.4 trillion) in Japanese government bonds; for each 1 percentage point increase in yields, they would theoretically incur valuation losses on the order of tens of trillions of yen.

To make up for losses and maintain healthy balance sheets, the aforementioned institutions are accelerating the sale of overseas risk assets and bringing the funds back to Japan. Market data show that overseas credit denominated in yen (including overseas loans and investments) has turned into a year-on-year decline, confirming that Japan-sourced funds are withdrawing from global markets.

Rising yields cause valuation losses, forcing institutions to sell foreign risk assets

The upward trend in Japanese government bond yields is not a temporary fluctuation, but a structural shift driven jointly by expectations of a policy shift, inflation pressure, and fiscal concerns. Overseas asset allocations that accumulated over the long low-interest-rate era are now facing systemic adjustment pressure as the interest-rate environment reverses.

Japan’s 10-year government bond yield rose by 4 basis points (bps) on Monday to 2.424%, the highest level in 27 years. Japan’s 40-year government bond yield rose by 9.5 basis points to 3.965%.

Japan is one of the world’s largest net holders of foreign assets, and the size of overseas assets held by its financial institutions is significant.

When valuation losses on government bonds continue to expand, institutions are forced to replenish liquidity and repair their balance sheets by monetizing overseas risk assets. This chain of events goes, in sequence: rising yields → bond valuation declines → unrealized losses expand → selling foreign risk assets → funds repatriate to Japan → contraction of global market liquidity.

A shift of overseas credit denominated in yen into negative year-on-year growth is a direct, data-level confirmation of this mechanism, showing that “Japan-origin” funds withdrawal has formed a trend.

Currency-exchange linkage amplifies the pressure, pressuring dollar-denominated assets

The foreign exchange market is another link in this transmission chain that cannot be ignored. Japan’s higher interest rates increase the relative attractiveness of the yen, creating pressure for yen appreciation.

This could trigger further capital outflows from dollar-denominated assets, putting additional pressure on overseas risk assets through the exchange-rate channel.

Movements in Japan’s monetary policy and the government bond market are no longer just internal issues for one country. Against the backdrop of massive overseas assets, the ripple effects triggered by changes in Tokyo’s interest rates are quietly and effectively changing the market environment for global risk assets.

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