The 30-year US Treasury yield climbed to 5.31% on August 17, 2026, its highest level since July 2007, marking a nearly 20-year peak. Three factors are driving this rise: massive US government debt issuance to fund persistent budget deficits, stubborn inflation fueled by tariffs and rising energy costs, and market uncertainty following Kevin Warsh’s appointment as Federal Reserve Chair in May 2026. This move above the 5% threshold raises borrowing costs across mortgages, corporate loans, and auto financing, worsening housing affordability and slowing business investment. The situation echoes 2007, though the current drivers are primarily fiscal and inflation-related rather than stemming from a private-sector credit bubble.
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