The 10-Year Treasury Broke 5% and Long Bond Holders Are Not Getting Rescued

On September 15, 2026, the 10-year Treasury yield reached 5% for the first time since 2007, causing iShares 20+ Year Treasury Bond ETF (TLT) to plummet to $80.71, marking a 36% decline over five years. The competition for global savings between governments financing higher deficits and AI capital spending is driving long yields upward, despite a 3% real 10-year yield suggesting a bull case for TLT.

The Federal Reserve's upper bound for interest rates remains at 3.75%, unchanged since December 2025, leaving long-term yields unresponsive to tightening. With persistent inflation at around 3%, the market demands a higher term premium rather than less. Governments and AI investment are both vying for the same limited pool of global savings, causing prices to rise, regardless of the Federal Reserve's policy intentions.

This makes it harder to reverse the current level of long yields, especially as duration is a critical factor linking yields and prices for funds holding Treasuries with a longer timeframe.