30-year U.S. Treasury Tops 5% on Iran Tensions

The 30-year U.S. Treasury yield rose above 5% in recent trading, pushing long-term borrowing costs toward levels not seen in about 20 years as tensions involving Iran lifted inflation concerns. Yields rose across the Treasury curve: the 2-year and 10-year notes climbed more than six basis points, the 30-year added about five basis points and the 10-year reached a nine-month high. Markets priced roughly a 37% chance of a Federal Reserve rate increase by year-end and about a 3% chance of a cut.

The 5% level has acted as a ceiling on the 30-year yield for the past two years, with tests in late 2023 and early 2025 failing to sustain readings above that mark. The S&P 500 has tended to retreat when long-term yields approached or exceeded 5%.

Analysts say a sustained move above 5% would take the 30-year into territory not seen since the mid-2000s. The 2023 peak near 5.17% is the next prominent resistance on technical charts. Global Markets Investor wrote, “At 5%, government bonds become attractive enough to pull capital away from equities, while simultaneously raising borrowing costs for mortgages, corporate loans, and U.S. government debt.”

Market participants pointed to the conflict involving Iran and higher oil prices as the immediate drivers of the move. Higher energy prices can feed into consumer inflation, which would affect the Federal Reserve’s outlook and could increase the chance of a longer period of restrictive monetary policy.

Economist Peter Schiff warned that rising long-term yields would increase fiscal pressure. He said, “The yield on 30-year Treasuries is above 5%, nearing the highest yield in twenty years. The move from 5% to 6% will be much quicker than the move from 4% to 5%, and the move from 6% to 7% will be quicker still. Given our sky-high debt, this move will trigger an economic crisis.”

Technical analysts flagged a breakout in bond-market patterns. Analyst Financelot noted the 30-year yield broke out of a wedge formation as the 2-year approached 4%, and compared the setup to 1968 when Treasury yields rose sharply into a recession.

Higher Treasury yields raise mortgage rates and corporate borrowing costs and can change investor allocations between stocks and bonds. Market participants will monitor upcoming inflation reports and oil-market developments for signs of whether long-term yields will remain elevated.