5-Year Treasury Yield Tops 5% for First Time Since 2007 as 30-Year Hits 19-Year High

US Treasury yields surged on September 23, 2026, with the 5-year note breaching 5% for the first time since 2007 after rising 15 basis points on the day. The move was accelerated following a 5-year Treasury auction, with yields climbing further immediately after the sale cleared, signaling weak demand or elevated supply concerns.

The selloff extended across the curve, with the 30-year bond yield hitting 5.367%, putting it on track for its highest settlement since June 2004, a span of more than two decades. The moves reflect persistent pressure on long-dated US debt tied to a worsening fiscal outlook and elevated inflation, themes that had already pushed the 30-year above 5.33% in August 2026.