Treasury yields surge to multi-decade highs as hot September data fuels bond selloff

The 30-year Treasury yield hit its highest level since 2004 at 5.44%, and the 10-year yield reached 5.13%, after a strong September economic report accelerated the bond selloff. Wednesday's 10-year yield jump of ~15bp was the largest since April 2025, signaling market repricing of growth and inflation expectations. The move suggests persistent upward pressure on long-term rates, with implications for global borrowing costs and risk assets.