Japan's Bond Rates Hit 30-Year High, Could Dull Appetite for U.S. Debt

Japan's 10-year government bond interest rate climbed to 2.945% on August 18, 2026 — its highest since 1996. As Japan raises rates while the U.S. holds or cuts, Japanese investors have less reason to buy American bonds. Less demand from Japan could mean weaker sales at U.S. debt auctions.