30-year US Treasuries yield hits two-decade high amid debt concerns

The 30-year US Treasury yield hit 5.28% on August 17, marking its highest point since 2007. The move represents a 0.35 percentage point increase year-over-year and caps off a summer where the long bond has been flirting with levels that predate the global financial crisis. The 30-year yield has spent more time above 5% in 2026 than in any stretch since that crisis, with July producing the longest sustained run above that threshold in nearly two decades. What’s driving the spike Three forces are converging to push long-term yields higher. First, there’s the sheer volume of debt the US government needs to sell. Fiscal deficits have ballooned, and the Treasury Department has been flooding the market with supply to fund them. A July 2026 auction saw 30-year bonds awarded at a yield of 5.058%, the highest auction rate in nearly 20 years. Second, inflation has proven stubbornly persistent. Q2 pressures from tariffs and energy costs have kept price growth elevated, making bondholders nervous about the real return they’re getting on a 30-year commitment. Third, Federal Reserve Chairman Kevin Warsh has signaled that he views higher long-term yields as a feature rather than a bug. His commun...