Propping Up The Yen, Again and Again

Quoth the Raven · QTR’s Fringe Finance · May 27, 2026 at 20:58 · ⏱ 5 min read  | Read on Substack ↗
Summary
Japan's repeated interventions to prop up the yen by selling U.S. Treasuries are unsustainable because they risk triggering a feedback loop of higher U.S. yields, a weaker dollar, and worsening stagflation. The article argues that the combination of Japan's massive debt, ultra-loose policy, and global forces like oil shocks and de-dollarization will eventually force a painful reckoning, with negative implications for bond markets and positive implications for hard assets like gold.
  • Japan shed about $47 billion in Treasuries in March, dropping holdings to $1.191 trillion, to defend the yen amid surging energy import costs.
  • The 30-year U.S. Treasury yield recently pushed above 5.2%, its highest since 2007, while the 10-year climbed toward 4.7%.
  • China also reduced its Treasury holdings to $652 billion in March, the lowest since 2008, as part of a broader foreign retreat from U.S. debt.
  • The Bank of Japan cannot raise rates aggressively because its economy is sensitive to hikes after decades of zero-interest rate policy, and its own massive QE has distorted JGB markets.
  • Japan's Treasury sales feed into a U.S. bond market already flashing warning signs due to sticky inflation, geopolitical oil spikes, and endless fiscal deficits.
  • A reversal of the yen carry trade (caused by rising JGB yields) could trigger a global margin call, as that carry trade has propped up global assets for years.
Read time 5 min
Length 5,079 chars
Category finance
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