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Japan’s 3% yield challenges US Treasury demand

By Markets Desk · 2026-09-10 · 2 min read
A stack of government bond certificates and a calculator on a desk
Illustration: Tradingbird

Japanese 10-year bond yields breached 3% for the first time since 1996. This shift threatens to reduce Japanese demand for US debt.

Japan’s 10-year government bond yield exceeded 3% on September 8. This marked the first time the rate reached this level since 1996. The 30-year yield hit a record high of 4.18%. These moves signal a structural change in global fixed-income markets. Japanese investors now have a more attractive domestic option.

Japan holds approximately $1.1 trillion in US Treasury securities. Decades of negative or low rates drove this capital abroad. Higher domestic yields are altering that calculation. BlackRock warned that this shift could weaken demand for US debt. The return gap between Japanese and American bonds has narrowed significantly.

Competitive yields alter investment flows

A Japanese investor can earn about 3% on a 10-year JGB. A comparable US Treasury yields roughly 2% after hedging costs. The hedge uses rolling three-month currency forwards. This makes domestic Japanese debt more competitive than US options. Fitch Ratings noted that higher yields may encourage capital retention.

BlackRock modeled a hypothetical 5% shift in Japanese holdings. This scenario would redirect about $55 billion in capital. That amount equals roughly 7% of expected US net borrowing for the quarter. The firm labeled this a scenario, not a forecast. However, it highlights the scale of potential reallocation.

Bank of Japan tightening accelerates

Inflation and wage growth are pressuring the Bank of Japan. The central bank raised its policy rate to 1% in June. It held rates steady in July. Board member Kazuyuki Masu suggested faster hikes if inflation accelerates. A Reuters poll expects a rise to 1.25% in September.

The yen weakened to 160 against the dollar before recovering. The US and Japan conducted a coordinated yen-buying intervention. This was the first joint operation since 1998. A stronger yen reduces the value of unhedged overseas assets. It makes domestic holdings more attractive for Japanese institutions.

Global yields impact asset classes

The 10-year US Treasury yield reached 4.84% on September 10. The 30-year US yield traded near 5.29%. Higher government bond yields weigh on non-yielding assets like Bitcoin. They also raise corporate borrowing costs. Bitcoin retreated from $82,283 to test the $78,000 area.

GN auto markets/bonds reports that rising yields increase competition for capital. This adds pressure to speculative markets. The decline in Bitcoin coincides with rising Treasury yields. It also aligns with stronger oil prices. These factors reduce liquidity available for risk assets.

Based on reporting by GN auto markets/bonds: bond yields, compiled by the Tradingbird desk.

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