Japan's 10-Year Yield at 30-Year High Threatens U.S. Treasury Demand

Japan's 10-year bond yield hit 2.945% on August 18, 2026 — its highest since September 1996 — as the Bank of Japan normalizes policy while the Fed holds or cuts. The narrowing yield gap between Japanese and U.S. bonds weakens the incentive for Japanese investors to buy Treasuries, which could reduce demand at U.S. debt auctions.