The yield on 30-year US Treasury bonds reached 5.335% in secondary trading. This precedes a planned auction of $22 billion in long-term debt. Current borrowing costs remain at their highest levels since the early 2000s.
Auction results throughout 2026 show a consistent upward trend. Yields rose from 5.046% in May to 5.058% in July and reached 5.216% in August. Current secondary market yields range between 5.285% and 5.335%.
Recent bid-to-cover ratios fluctuated between 2.3x and 2.7x. International and indirect investors acquired 65% to 80% of the debt offered in recent sales, indicating strong foreign demand for US government bonds.
Market analysts attribute the rising yields to persistent inflation expectations driven by energy prices, the high volume of government debt issuance, and Treasury buyback programs. These factors influence mortgage rates, corporate borrowing costs, and equity valuations.
